This is the heavyweight end of the glovebox jump-starter market, argued two ways. The NOCO Boost HD GB70 is the established truck pick: 2,000 peak amps, maker ratings to 8.0 litres of gas and 6.0 litres of diesel, and a decade of owner history behind it. The Antigravity Micro-Start XP-10 G2 is the challenger built the opposite way: barely a third of the NOCO’s weight, a digital display, and maker ratings that reach further on diesel — 7.3 litres — and to 10.0 litres of gas. One warning before any table: the two brands do not publish their amp figures the same way, and this guide untangles that before it recommends anything. The wider field sits in our best portable jump starter roundup, the brand-level argument is in NOCO vs GOOLOO, and every head-to-head lives on the jump starter comparisons hub.
How we researched this guide
We compared two jump starters head-to-head — the NOCO Boost HD GB70 and the Antigravity Micro-Start XP-10 G2 — and checked every specification against the makers’ own published documents and listings: NOCO spec reproductions from four retailers, Antigravity’s own XP-10 G2 product page, and both Amazon item-details records, cross-checked by part number and UPC so the Gen 2 XP-10 is never confused with the original. Where sources disagree — the GB70’s internal battery is printed as both 55 and 56 watt-hours, and its weight as both 4.18 and 5.0 pounds — both figures appear in this guide, labelled as conflicts.
Owner evidence is paraphrased from eight sources: Tundras.com, IH8MUD, the T6Forum and JL Wrangler Forums for the GB70; the BMW MOA forum, a Whirlpool owner thread, Exploring Overland and Cloudy Nights for the XP-10 line. We do not test jump starters. Engine ratings are each maker’s own claim, written as “rated to” throughout, and where a maker publishes no figure the tables print “Not published” rather than a guess. Our standards are set out in the affiliate disclosure.
The 30-second answer
Choose the NOCO Boost HD GB70 if the dead battery usually sits in a truck, a big V8 or a diesel up to 6.0 litres, and you want the pack with the deeper reserve, the up-to-40-starts claim and the long owner track record. Choose the Antigravity Micro-Start XP-10 G2 if you want that capability in a 1.7-pound slab that fits a glovebox, a motorcycle kit or a flight bag, with the wider diesel rating on paper — to 7.3 litres — a digital charge display and modern USB-C charging. Neither is a small-car bargain pick; both are bought for the day a big engine will not turn over.
2,000A peak — the truck and diesel workhorse
NOCO Boost HD GB70
NOCO’s heavy-duty Boost: rated to 8.0L gas and 6.0L diesel with up to 40 starts per charge claimed. Best if your vehicle is a truck or large SUV and the pack may have to work more than once in a morning.
3,000A peak / 600A starting — the compact diesel pick
Antigravity Micro-Start XP-10 G2
Antigravity’s second-generation Micro-Start: rated to 10.0L gas and 7.3L diesel at just 1.7 lb, with a digital display and USB-C PD charging. Best if space and weight matter as much as starting power.
GB70 vs XP-10 G2: the quick comparison
Maker figures only, and read the amp column with care: NOCO publishes a single 2,000A peak figure for the GB70, while Antigravity publishes both a 600A starting current and a 3,000A peak for the XP-10 G2. Those numbers are not measured the same way, which is why the engine ratings beside them — not the biggest amp number — drive every recommendation in this guide.
| Jump starter | Amps (maker figures) | Engine rating (maker claim) | USB output | Warranty | Check Price |
|---|---|---|---|---|---|
| NOCO Boost HD GB70 | 2,000A peak | Gas to 8.0L · Diesel to 6.0L | USB-A 5V/2.1A + 12V XGC out | 1 year | |
| Antigravity Micro-Start XP-10 G2 | 600A starting · 3,000A peak | Gas to 10.0L · Diesel to 7.3L | USB-C PD 30W + USB-A QC3.0 | Not published |
Which of these two packs fits your engine?
Tell it your fuel type and your engine size in litres. It answers with one of the two models compared in this guide and never names a pack below the maker rating for that engine — where your engine passes both ratings, it says so plainly instead of pretending either pack covers it.
How to choose between the GB70 and the XP-10 G2
Peak amps vs starting amps — the number trap in this comparison
This pairing is the cleanest illustration on the site of why peak amps mislead. The XP-10 G2’s box leads with 3,000 peak amps; the GB70 leads with 2,000. Read Antigravity’s own full figures, though, and the XP-10’s starting current is 600A — the sustained figure is a different, smaller number than the peak. NOCO publishes no separate starting figure for the GB70 at all. Neither brand is lying; they are answering different questions. The figures that commit a maker to a job size are the engine ratings, and the calculator above works from those alone — the same doctrine as our amp-draw explainer: headline current is marketing until it is tied to a load.
Gas vs diesel — read the column your engine lives in
Diesel cranking fights higher compression, glow plugs and thicker cold oil, so every pack’s diesel rating sits well below its gas rating. Here the split decides the winner by fuel: on gas the GB70 is rated to 8.0 litres against the XP-10 G2’s 10.0; on diesel the order flips — 6.0 litres for the NOCO, 7.3 for the Antigravity, which covers the 7.3-litre-class diesel pickups the GB70’s paper stops short of. Shop on your own column only, and treat a rating that exactly equals your engine size as a fair-weather ceiling, not a January promise.
Capacity and starts per charge — reserve is a feature
The two packs publish capacity in directly comparable units for once: the XP-10 G2 carries 59.2 watt-hours (16,000 mAh); the GB70 carries 56 watt-hours on most spec sheets, with 55 watt-hours printed elsewhere — a conflict this guide prints rather than resolves. On starts per charge, NOCO claims up to 40 for the GB70; Antigravity publishes no equivalent figure for the G2 in the sources checked. Reserve matters when the first attempt fails, when you are starting a second vehicle, or when the pack also feeds phones all evening — our battery runtime explainer makes the same watt-hour argument for winch batteries.
Size and weight — the pack you carry is the pack that saves you
Here the comparison is not close. The XP-10 G2 is a 9.6 by 4 by 1.4-inch slab at 1.7 pounds — glovebox, motorcycle luggage, camera bag, flight carry-on. The GB70 is a rubberised brick roughly 8.8 by 6.0 by 2.8 inches, at 4.18 pounds on its spec sheet or 5.0 pounds in Amazon listing copy — another printed conflict — and it lives in a truck cab or a garage, not in a jacket pocket. If the vehicle is a motorcycle, a small car or anything you travel away from, the Antigravity’s size is not a luxury; it is the reason the pack is present at all on the day it is needed.
USB, 12V output and life as a power bank
Both packs earn their keep between emergencies, differently. The GB70 offers a basic 5V/2.1A USB output but adds NOCO’s XGC port: 12V at 15A out, enough for tyre inflators and inverters, and a 3-amp XGC input that refills the pack in about three hours. The XP-10 G2 counters with the modern set: USB-C Power Delivery at 30W in and out — a roughly three-hour recharge and laptop-class output — a USB-A Quick Charge port, and a 15V/10A DC output. Its digital display, showing charge as a percentage, is the other everyday win: you know the pack is ready before the morning you need it.
Safety systems and the stone-dead battery
Both brands build on protected clamps. NOCO’s UltraSafe pitch is spark-proof connections and reverse-polarity protection: connect it wrong and it refuses rather than sparks. Antigravity’s smart clamps list a wider protection set on paper — reverse polarity, over-charge, over-discharge, short circuit and back-charge. The harder case is the battery so flat the pack cannot detect it; owners of the GB70 describe giving the pack a short wait after connecting before cranking a completely dead battery, and the discipline is the same for both: connect carefully, confirm polarity twice, then crank in short attempts. The full routine is in our winch battery guide.
GB70 vs XP-10 G2, round by round
Round 1: starting power on paper
NOCO publishes one number — 2,000 peak amps — and a reputation built on it. Antigravity publishes two: 600A starting and 3,000A peak. Because the brands measure differently, no honest judge can convert those into a single score; what can be compared is the work each maker will put its name to, which is the next round. On published figures alone, this round is a lesson, not a result. Winner: draw — the amp figures are not measured to a shared standard.
Round 2: engine coverage
This is the round that should decide most purchases. On gas, the XP-10 G2 is rated to 10.0 litres against the GB70’s 8.0 — a margin that matters only for the largest petrol engines. On diesel, the XP-10 G2 is rated to 7.3 litres against the GB70’s 6.0, and that margin matters a great deal: it is the difference between covering the 7.3-litre-class diesel pickups and stopping one class short. Winner: Antigravity XP-10 G2, on the diesel column.
Round 3: size, weight and storage
At 1.7 pounds and 1.4 inches thick, the XP-10 G2 goes where the GB70 physically cannot: a motorcycle’s luggage, a small car’s glovebox, a work bag that flies. The GB70, at roughly three times the weight and several times the volume, is a cab-and-garage tool. Owners of the XP-10 line have built entire use cases around that portability for a decade. Winner: Antigravity XP-10 G2, by a wide margin.
Round 4: reserve and repeat starts
Run the morning from hell: two vehicles, one frozen, several attempts each. The GB70 claims up to 40 starts per charge and carries its capacity in a housing built to be handled with gloves; Antigravity publishes no starts-per-charge figure for the G2, so its slightly larger 59.2 watt-hour battery cannot be converted into a promised attempt count. A claim you can plan around beats a number you have to guess at. Winner: NOCO GB70.
Round 5: charging and power-bank duty
The XP-10 G2 charges over USB-C Power Delivery at 30W, shows its state of charge as a percentage on a digital display, and outputs through USB-C, USB-A Quick Charge and a 15V/10A DC port. The GB70’s USB side is a single 2.1A port from an earlier era; its fast path is the proprietary XGC input, quick but tied to NOCO’s own cable. For a pack that also lives as travel power, the Antigravity is a generation ahead. Winner: Antigravity XP-10 G2.
Round 6: paperwork, warranty and track record
The GB70’s paperwork is complete and checkable: a stated 1-year warranty, a UPC, manuals and spec sheets reproduced across retailers, and owner threads stretching back years. The XP-10 G2’s maker page is thorough on specifications but the sources checked isolate no model-specific warranty term, so this guide prints “Not published” rather than assuming one. Add the GB70’s long production run and the depth of owner knowledge around it. Winner: NOCO GB70.
GB70 vs XP-10 G2 by budget and job
| Tier / job | What you get | Example pick from this guide |
|---|---|---|
| Compact-first | Full diesel reach in a 1.7 lb slab with a display and USB-C charging; the pack that travels | Antigravity Micro-Start XP-10 G2 |
| Truck workhorse | The up-to-40-starts reserve, heavy-duty clamps and the 12V XGC accessory port | NOCO Boost HD GB70 |
| Largest diesel on paper | The only rating here that reaches the 7.3L diesel class | Antigravity Micro-Start XP-10 G2 |
| Small car, small budget | Honestly, neither: both packs are oversized for a small petrol car — the smaller models in the parent roundup fit better | Best portable jump starter roundup |
Types of jump starter: where these two sit
| Type | Pros | Cons | Best for |
|---|---|---|---|
| Heavy-duty lithium pack (the GB70) | High starting delivery and reserve in a sealed, weather-resistant housing; accessory ports for 12V kit | Too big and heavy for small cars, bikes or travel bags | Trucks, large SUVs, boats and anyone starting big engines regularly |
| Compact lithium power supply (the XP-10 G2) | Motorcycle-bag size with full-size engine ratings on paper; doubles as a modern USB-C power bank with a display | Smaller clamps and housing are less glove-friendly; reserve per charge is finite | Mixed fleets, motorcycles, travel and drivers short on storage space |
| Traditional lead-acid jump box | Huge cranking reserves; shrugs off cold better; internal battery is replaceable | Commonly over 18 lb; self-discharges faster; too big to leave in a small car | Workshops, farms and diesels that need long cranking |
| Capacitor (batteryless) starter | Charges from the weak battery or a donor in minutes; almost immune to storage neglect and cold | Needs some voltage left or a donor source; a poor power bank | Drivers who know a stored battery pack would be forgotten flat |
The first two rows are this comparison. The last two are the honest alternatives, and the “Who should NOT buy” section says plainly when one of them is the better spend. The full category archive is the portable jump starters page.
Detailed reviews: the two packs, one by one
Each block follows the same order — why it earns its place, the maker’s own specifications, who it fits, the honest watch-outs, and what owners report. Ratings quoted are the makers’, written as “rated to”.
Best for trucks and repeated starts: NOCO Boost HD GB70
2,000A peak — the truck and diesel workhorse
Why the NOCO Boost HD GB70 is our pick
The GB70 is the pack this category’s heavy end is measured against: 2,000 peak amps, maker ratings to 8.0 litres of gas and 6.0 litres of diesel, and a claim of up to 40 starts from a single charge. It earns the truck slot in this comparison not on one figure but on the combination — reserve, heavy-duty clamps, a 12V accessory port and a production history long enough that its failure modes are public knowledge rather than surprises.
NOCO Boost HD GB70 key specs
- Part number: GB70
- UPC: 046221150056
- Peak current: 2,000A (maker rating)
- Internal battery: 56 Wh lithium-ion (conflict: 55 Wh also printed)
- Gas rating: up to 8.0L
- Diesel rating: up to 6.0L
- Jump starts per charge: up to 40 (maker claim)
- USB output: 5V / 2.1A
- XGC output: 12V / 15A; XGC input: 12V / 3A (about 3-hour recharge)
- LED flashlight: 400 lumens, 7 modes
- Housing: IP65 with ports closed
- Weight: conflict — 4.18 lb on spec sheets, 5.0 lb in Amazon listing copy
- Warranty: 1-year limited
NOCO Boost HD GB70: fits and best for
Full-size petrol trucks and SUVs, diesel pickups and SUVs to 6.0 litres, RVs, boats, tractors and the household’s second car on the same morning. It suits a vehicle with room in the cab and an owner who may be asked to start somebody else’s truck as often as their own.
NOCO Boost HD GB70 pros and watch-outs
Pros
- Rated to 8.0L gas and 6.0L diesel, with up to 40 starts per charge claimed
- XGC port powers 12V accessories at 15A and fast-charges the pack in about 3 hours
- 400-lumen, 7-mode light is a genuine work light
- IP65 housing with rubberised over-moulding, built to live in a truck
- Years of production: manuals, answers and owner knowledge are easy to find
Watch-outs
- Its own sources cannot agree on capacity (55 vs 56 Wh) or weight (4.18 vs 5.0 lb)
- USB charging is 2.1A-era: slow as a power bank, and no USB-C Power Delivery
- Diesel ceiling of 6.0L stops short of the 7.3L-class pickups
- Too large for motorcycle luggage or a small glovebox
NOCO Boost HD GB70: what owners report
- On Tundras.com, an owner reports repeated GB70 starts of a 6.6L V8 car with a completely dead battery, giving the pack a short wait after connecting before a long crank succeeds — and using it as a camp light and phone charger between times.
- On IH8MUD, an owner reports a GB70 starting a fully dead 7.3L diesel truck in winter at about 30 degrees. That exceeds NOCO’s 6.0L diesel rating: it shows reserve exists, but the rating, not the anecdote, is the buying rule.
- A JL Wrangler Forums capacity discussion gives the balance: at roughly 5 amp-hours the GB70 holds a fraction of a lead-acid shop box’s reserve, which is why a shorted or deeply drained battery can still defeat it.
NOCO Boost HD GB70: who should not buy
Skip it for a diesel larger than 6.0 litres, for motorcycle or travel carry, or if the pack’s second job is fast-charging modern laptops — the Antigravity Micro-Start XP-10 G2 covers the bigger diesel on paper, at a third of the weight, with USB-C PD.
NOCO Boost HD GB70: pair it with
A maintainer for the vehicle battery itself, so the pack stays an emergency tool rather than a weekly crutch. The sizing logic in our winch sizing guide — buy for the real load, not the headline — is the same logic that should size this pack.
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Tip: on a completely dead battery, connect the GB70, confirm the clamps, and give it a short wait before cranking, as owners describe. Then recharge it the same day and log the top-up with the rest of your kit in our maintenance checklist.
Best for compact power and diesel reach: Antigravity Micro-Start XP-10 G2
3,000A peak / 600A starting — the compact diesel pick
Why the Antigravity Micro-Start XP-10 G2 is our pick
The XP-10 G2 is what the Micro-Start idea grew into: a 1.7-pound slab that Antigravity rates to 10.0 litres of gas and 7.3 litres of diesel, with 600A of starting current behind a 3,000A peak figure, a 59.2 watt-hour battery, a digital display and USB-C Power Delivery. It earns its place by covering engines the GB70’s diesel paper cannot — while fitting in spaces the GB70 physically cannot enter.
Antigravity Micro-Start XP-10 G2 key specs
- Part number: AG-XP-10-G2
- UPC: 711811704772
- Starting current: 600A (maker figure)
- Peak current: 3,000A (maker figure)
- Internal battery: 16,000 mAh / 59.2 Wh lithium
- Gas rating: up to 10.0L (retailer reproductions of maker copy)
- Diesel rating: up to 7.3L
- USB-C: Power Delivery 30W, in and out (about 3-hour recharge)
- USB-A output: Quick Charge 3.0
- DC output: 15V / 10A
- Display: digital, state of charge in percent
- Size: 9.6 x 4 x 1.4 in
- Weight: 1.7 lb
- Warranty: Not published in the sources checked
Antigravity Micro-Start XP-10 G2: fits and best for
Diesel pickups and SUVs to 7.3 litres, petrol vehicles of any common size, motorcycles, UTVs, boats and generators — and, uniquely here, the traveller: the pack fits a flight bag or a camera case and doubles as the trip’s USB-C power bank. It suits owners whose storage space is the constraint, not the engine.
Antigravity Micro-Start XP-10 G2 pros and watch-outs
Pros
- Widest diesel rating here: to 7.3L, covering the class the GB70 stops short of
- 1.7 lb and 1.4 in thick — the only pack here that travels anywhere
- Digital display shows charge as a percentage, not a row of vague lights
- USB-C PD 30W in and out plus a 15V/10A DC port: a modern power bank, not a token one
- Smart clamps list five protections, including back-charge and short circuit
Watch-outs
- The 3,000A headline is a peak figure; the starting current is 600A — read both
- No starts-per-charge figure published in the sources checked
- No model-specific warranty term isolated in the sources checked
- Small housing and clamps are less friendly to gloved hands than the NOCO’s
Antigravity Micro-Start XP-10 G2: what owners report
- On the BMW MOA forum, an owner who bought an XP-10 expecting a motorcycle failure instead used it on a dead car battery in the driveway with no problems, and another long-term owner describes the pack as trouble-free over years of carrying it (Gen 1 units).
- A Whirlpool owner thread recommends the XP-10 from use: V8 starts, charge held well over time, and starts in sub-zero conditions (Gen 1 unit).
- Exploring Overland reports an XP-10 starting a Mercedes turbodiesel with the vehicle’s battery cables disconnected, on a cold morning — the diesel use case the line was built around (Gen 1 unit). Gen 2 owner coverage is still thin, and this guide says so rather than dressing Gen 1 history up as G2 testing.
Antigravity Micro-Start XP-10 G2: who should not buy
Skip it if your work is repeated heavy cranking with gloves on, if a stated warranty term matters to you, or if you want the deepest published starts-per-charge claim — the NOCO Boost HD GB70 is the workhorse shaped for that job.
Antigravity Micro-Start XP-10 G2: pair it with
Its own carry case is included; add the discipline of a fixed home — glovebox, seat pocket or riding luggage — so it is findable at midnight. For the wider kit it travels with, see our recovery kit guide.
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Tip: use the display. Check the percentage monthly and top up before it falls far; a lithium pack stored near empty ages fastest. The same storage rules are in our battery-drain explainer.
Spec comparison: GB70 vs XP-10 G2, line by line
| Specification | NOCO Boost HD GB70 | Antigravity Micro-Start XP-10 G2 |
|---|---|---|
| Peak amps (maker figure) | 2,000A | 3,000A |
| Starting current (maker figure) | Not published separately | 600A |
| Gas engine rating | To 8.0L | To 10.0L |
| Diesel engine rating | To 6.0L | To 7.3L |
| Internal battery | 56 Wh (conflict: 55 Wh also printed) | 59.2 Wh / 16,000 mAh |
| Starts per charge (maker claim) | Up to 40 | Not published |
| Fastest USB output | USB-A 5V/2.1A | USB-C PD 30W |
| 12V / DC output | XGC 12V / 15A | DC 15V / 10A |
| Recharge (maker claim) | About 3 h on XGC input | About 3 h on USB-C PD 30W |
| Status display | LED indicators | Digital display, percent |
| LED flashlight | 400 lumens, 7 modes | Built-in; lumens Not published |
| Size | About 8.8 x 6.0 x 2.8 in | 9.6 x 4 x 1.4 in |
| Weight | Conflict: 4.18 lb (spec) / 5.0 lb (listing) | 1.7 lb |
| Warranty | 1 year | Not published |
| Check Price |
Read the table as a story about two philosophies: NOCO publishes a complete, conservative sheet — and still manages two internal conflicts, printed above rather than smoothed over. Antigravity publishes the more modern feature set and the wider diesel rating, but leaves the starts-per-charge and warranty cells empty. Neither column wins every row, which is exactly why the verdict below splits by job instead of crowning one pack.
Using and jump-starting basics
The sequence is identical for both packs. Park out of traffic, engine off, and find the battery — or the remote jump posts some vehicles provide instead. Connect the red clamp to the positive terminal first, then the black clamp to an unpainted engine-bay ground point away from the battery. Switch the pack on and confirm it is ready: the XP-10 G2 shows its state on the digital display, while the GB70 answers with its indicator lights. On a completely flat battery, give the connection a short wait before the first crank, as GB70 owners describe doing.
Crank in short attempts of a few seconds, with pauses between them, and stop entirely if the pack or clamps grow hot. Once the engine runs, remove the black clamp first, then the red, and drive for at least 20 to 30 minutes. A battery that needed a jump once usually needs one again within days unless the cause — age, a parasitic draw or a failing alternator — is found; our battery-drain explainer walks through draw diagnosis, our motor-test guide covers the starter-motor side of the same circuit, and the battery guide covers replacement sizing. Recharge the pack the same day, whichever of the two you bought.
Safety essentials
Jump-starting safety — six rules that outrank every rating above:
- Red to positive, black to a ground point away from the battery — never both clamps on the battery posts if the manual offers a ground point.
- If the pack shows a reverse-polarity warning, stop. The protection is doing its job; swap nothing while the pack is live.
- Keep the pack clear of the fan belt and moving parts, and keep the clamps from touching each other while the pack is switched on.
- Crank for a few seconds at a time and rest between attempts — heat is the enemy of the pack, the clamps and the starter motor.
- Never use a swollen, cracked or hot pack, and never charge a lithium pack below freezing unless the maker says the model manages it.
- A jump start is a diagnosis deferred, not a repair: a battery that goes flat twice in a week needs testing, not a bigger pack.
Two accessories to keep with whichever pack you buy — both verified in the parent jump-starter research and recorded in research-notes.md — plus one habit that costs nothing:
NOCO GENIUS5 5A battery charger and maintainer — the prevention pick. Left connected to a vehicle that sits, its 6V/12V smart charging keeps the battery full, so the jump pack stays an emergency tool rather than a weekly routine — the habit behind our maintenance checklist.
Energizer jumper cables, 16-foot, 6-gauge (ENB-616U) — the analogue backup. When a pack is flat, borrowed or beaten by a shorted battery, a donor vehicle and a proper set of cables are still the oldest way home.
A fixed storage spot, and a top-up reminder. No button for this one, deliberately: no jump-starter case made for either of these exact models was verified in this research, so none is sold to you here. Both packs ship with storage (a microfiber bag with the GB70, a carry case with the XP-10 G2); what they need from you is a fixed home and a calendar reminder. How to carry the wider kit is in our essential accessories guide.
Troubleshooting: when the pack will not start the vehicle
| Symptom | Likely cause | Fix |
|---|---|---|
| Pack shows no ready signal after connecting | Battery is too flat for the pack to detect cleanly | Reseat the clamps on clean metal, confirm polarity, wait a short while connected, then crank |
| Clicking, but the engine will not turn over | Poor clamp contact, or a battery with a dead cell | Reseat and wiggle the clamps for bite and retry; if it still only clicks, the battery itself is finished |
| Pack worked in autumn, struggles in January | Lithium output falls in deep cold — owners of both lines report it | Warm the pack indoors or inside a jacket, retry in short attempts, and keep attempts brief |
| Engine starts, then the battery is flat again next morning | Parasitic draw or a failing alternator, not a weak pack | Charge and test the battery, then hunt the draw before blaming the jump starter |
| Pack itself will not recharge | Left stored flat for months; protection has locked the cells | Leave it on its charger for several hours; if it never wakes, it is a warranty or replacement case |
| Ready signal on, nothing at the starter | Starter motor or solenoid failure | No jump pack fixes a dead starter — see how a solenoid fault presents in our troubleshooting guide linked below |
That last row has a winch-side twin: a solenoid that clicks without turning anything over is the same electrical story, covered in winch solenoid clicks but will not move.
Who should NOT buy these
Owners of 24V vehicles and heavy plant. Both packs are 12V tools. A 24V system is outside both makers’ ratings, and no calculator branch above pretends otherwise — you need commercial equipment or a call-out.
Anyone whose diesel needs minutes of cranking. An old diesel with glow-plug or compression trouble can demand sustained cranking neither lithium pack is built to give. A lead-acid shop jump box — heavy, replaceable-battery, unglamorous — is the honest tool there; the same reserve logic runs our electric truck winch guide.
Small-car drivers paying for capacity they will never use. If your largest engine is a 2.0-litre petrol hatchback, both packs are overkill in size, rating and money. The smaller models in the portable jump starter roundup fit that job better.
Drivers who will never maintain a stored battery. If the pack will sit untouched for two years, a stored lithium pack is the wrong insurance. Either commit to the top-up habit in our battery wiring guide’s storage notes, or accept that roadside assistance is your jump starter.
Final verdict
- Best for trucks and repeated starts — NOCO Boost HD GB70: the truck workhorse — deepest published starts claim, XGC accessory power, complete paperwork. Check its price
- Best for compact power and diesel reach — Antigravity Micro-Start XP-10 G2: the compact diesel pick — widest diesel rating, a third of the weight, modern USB-C and a real display. Check its price
Head-to-head verdict, in one breath: for a truck that lives outdoors and a battery that may need several attempts, buy the GB70. For everything else — the bigger diesel, the motorcycle, the trip, the small car that still deserves real cover — buy the XP-10 G2. The parent brand comparison is NOCO vs GOOLOO, and the comparison hub holds the rest of the series.
FAQ
Is the NOCO GB70 or the Antigravity XP-10 G2 better?
Better depends on the job. The GB70 is the stronger truck tool: up to 40 starts claimed, heavy-duty clamps, a 12V accessory port and complete paperwork including a stated warranty. The XP-10 G2 is rated further on diesel (7.3L vs 6.0L), weighs 1.7 lb against roughly three times that, and charges over USB-C with a digital display. Trucks and repeated starts: NOCO. Diesel reach and portability: Antigravity.
Why does the XP-10 G2 claim 3,000 amps but only 600 starting amps?
Because peak and starting current are different measurements. Peak is the brief maximum the pack can deliver; starting current is the sustained figure closer to what cranking actually draws. Antigravity publishes both, which is more honest than a peak alone — but it also means the 3,000A headline must never be compared directly with the GB70’s 2,000A peak as if they were the same test.
Which jump starter is better for a diesel truck?
On maker ratings, the XP-10 G2: it is rated to 7.3L diesel against the GB70’s 6.0L, which covers the 7.3-litre-class pickups. For diesels up to 6.0L that may need repeated attempts — cold mornings, tired batteries — the GB70’s up-to-40-starts claim and larger housing make it the working pick. Owners have started bigger diesels than either rating with a GB70, but ratings, not anecdotes, are the buying rule.
Can the GB70 start a 7.3L diesel?
NOCO rates the GB70 to 6.0L diesel, so on paper, no. Owner reports on IH8MUD describe a GB70 starting a fully dead 7.3L diesel in winter, which shows the pack has reserve beyond its rating — but reserve is a margin, not a promise. If a 7.3L diesel is your vehicle, buy the pack rated for it: in this comparison, the XP-10 G2.
How many jump starts does the GB70 give per charge?
NOCO claims up to 40 starts per charge. Real counts depend on engine size, battery condition and temperature: a big diesel on a freezing morning can spend in two attempts what a warm petrol car spends in ten. Treat 40 as a best-case comparison figure, and recharge the pack after any morning it worked hard.
Does the XP-10 G2 work as a power bank?
Yes, and it is the better power bank of the two. It outputs through USB-C Power Delivery at 30W — laptop-class charging — a USB-A Quick Charge port and a 15V/10A DC port, and it recharges itself over the same USB-C port in about three hours. The GB70’s USB output is a single 2.1A port, though its XGC port is stronger for 12V accessories like inflators.
How long do these packs hold a charge in storage?
Both are lithium packs and both self-discharge slowly; neither maker publishes a headline standby figure in the sources checked for this guide. Owner experience across both lines points the same way: a top-up every few months keeps the pack honest. The XP-10 G2’s percentage display makes that check a glance; with the GB70, put the reminder in a calendar instead.
Will either pack start a completely dead battery?
Both are built for it: protected smart clamps, and owner reports of starts from fully dead batteries for each. GB70 owners describe connecting, waiting briefly, then cranking successfully. A battery with a shorted cell is different — it can absorb everything a pack delivers and still not start, and that is a replacement battery, not a bigger jump starter.
Is the XP-10 G2 the same as the original XP-10?
No. The original XP-10 was rated at 300A starting and 600A peak with an 18,000 mAh battery and indicator lights. The Gen 2 doubles the starting figure to 600A, raises the peak to 3,000A, moves to 16,000 mAh / 59.2 Wh, and adds USB-C Power Delivery and a digital display. Owner history for the line is mostly Gen 1 history; this guide labels it as such wherever it is used.
What if my engine is bigger than both ratings?
Then neither pack in this comparison is the honest purchase for guaranteed starting — the calculator above says so rather than forcing a fit. Options are a lead-acid shop jump box with far larger reserve, a capacitor starter if some charge remains, or commercial 24V equipment where that applies. Start from the types table above and the wider category before spending.
Sources & changelog
Manufacturer and listing sources: NOCO GB70 Amazon item details (ASIN B016UG6PWE); GB70 specifications (BatteriesInAFlash); GB70 technical specifications (UTV Source); GB70 specifications and manual data (BatteryMart); Antigravity XP-10 Amazon listing (ASIN B0CH1L89N2); Antigravity XP-10 G2 maker page; XP-10 G2 specifications (American Muscle); XP-10 G2 specifications (European Auto Source); GB70 vs XP-10 comparison coverage (BestAdvisor, Gen 1 XP-10).
Owner sources: Tundras.com — NOCO jump starter owner thread; IH8MUD — Which NOCO jump starter to buy?; T6Forum — NOCO Boost GB70 success; JL Wrangler Forums — NOCO and dead battery; BMW MOA — Antigravity jump-pack owners; Whirlpool — jump starter owner recommendations; Exploring Overland — Micro-Start owner review; Cloudy Nights — XP-10 as portable power. Sibling guides: best portable jump starter and NOCO vs GOOLOO jump starter.
Changelog — October 17, 2026: guide first published.
By Leo, Founder, WinchInsider
Leo runs WinchInsider’s recovery and 12V guides. This comparison was built from maker documents and owner reports — no bench testing, no invented figures, and conflicts printed where the makers’ own listings disagree. More on About WinchInsider.
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