A car that cranks slowly on a cold morning is not always a starter problem. Often it is the battery: a flooded battery loses cranking power as it ages, and a car with start-stop, heated seats and a big sound system asks more of it every year. An AGM battery is built for exactly that load.
The trap in this class is the group size. A battery with the right cranking amps in the wrong group size will not fit the tray, the hold-down or the terminals, and a battery that does not fit is a return, not a fix. The group size, the terminal layout and the cold cranking amps all have to match your car.
This guide reviews five AGM batteries for cars, from a 720 CCA starter to a 1,012 CCA high-output unit, and shows exactly what each one delivers before you buy.
The 30-second answer
OPTIMA RedTop 35 — A sealed AGM starting battery with 720 CCA, SpiralCell design and maintenance-free mounting in any position. Odyssey 34-PC1500T — An Extreme Series AGM with 850 CCA, 68 Ah and 135 minutes of reserve, built on thin-plate pure lead. ACDelco Gold 48AGM — A Professional AGM Group 48 battery with a 36-month free replacement warranty, built for start-stop cars. XS Power D3400 — A Group 34 AGM high-output battery with 1,012 CCA, 80 Ah and 160 minutes of reserve, built for car audio and performance cars. OPTIMA RedTop 25 — A sealed AGM starting battery with 720 CCA in a compact group size, for cars with a smaller battery tray.
How we researched this guide
We profiled five AGM car batteries, checked maker and listing evidence for each, and read owner reports on cold starts, fitment and warranty. All five picks carry verified Amazon listings. Eight other batteries were excluded because their group size, CCA or listing could not be verified.
Quick picks
Best Overall
OPTIMA RedTop 35
A sealed AGM starting battery with 720 CCA, SpiralCell design and maintenance-free mounting in any position.
Best Premium AGM
Odyssey 34-PC1500T
An Extreme Series AGM with 850 CCA, 68 Ah and 135 minutes of reserve, built on thin-plate pure lead.
Best OEM Replacement
ACDelco Gold 48AGM
A Professional AGM Group 48 battery with a 36-month free replacement warranty, built for start-stop cars.
Best High Output
XS Power D3400
A Group 34 AGM high-output battery with 1,012 CCA, 80 Ah and 160 minutes of reserve, built for car audio and performance cars.
Best Compact AGM
OPTIMA RedTop 25
A sealed AGM starting battery with 720 CCA in a compact group size, for cars with a smaller battery tray.
Find your pick in three taps
| Pick | Key detail | Best for | Note | Check Price |
|---|---|---|---|---|
| OPTIMA RedTop 35 | 720 CCA, SpiralCell AGM | Drivers wanting strong starts | Starting battery only | Check Price |
| Odyssey 34-PC1500T | 850 CCA, 135 min reserve | Drivers wanting maximum power | Heavy, 49.5 pounds | Check Price |
| ACDelco Gold 48AGM | Group 48 AGM, 36-month warranty | Start-stop cars, Group 48 | CCA not published | Check Price |
| XS Power D3400 | 1,012 CCA, 160 min reserve | Car audio, performance cars | M6 terminals | Check Price |
| OPTIMA RedTop 25 | 720 CCA, compact group 25 | Smaller battery trays | Starting battery only | Check Price |
How to choose AGM batteries
Group size first
Group size decides fit. Measure the tray, the hold-down and the terminal positions, and match the BCI group size exactly. A battery with the right CCA in the wrong group size will not fit, and a battery that does not fit is a return. See Adjustable Spanner Alternative for related buying guidance.
Cold cranking amps
CCA is the starting power in cold weather. More CCA means a stronger start on a cold morning, but only if the group size matches. Match the CCA to your climate and your engine, not to the biggest number on the shelf.
Reserve capacity
Reserve capacity is how long the battery can run the car if the charging system fails. More minutes means more margin. A car with start-stop and heavy accessories benefits from a longer reserve.
Terminals and layout
Terminals must match the cables: SAE posts, side terminals or M6 bolts are not interchangeable. Check the terminal type and the positive side before ordering, because a reversed layout will not reach the cables. See Adjustable Wrench Alternative for related buying guidance.
Warranty and seller
A warranty is only as good as its channel. Some makers do not cover batteries bought through unauthorised sellers, so buy from an authorised seller and keep the receipt and the registration.
AGM batteries by budget
| Tier | What you get | Example pick |
|---|---|---|
| Compact starter | 720 CCA in a smaller case | OPTIMA RedTop 25 |
| Standard starter | 720 CCA in a common group size | OPTIMA RedTop 35 |
| OEM replacement | Group 48 AGM with a 36-month warranty | ACDelco Gold 48AGM |
| Premium AGM | 850 CCA and 135 minutes of reserve | Odyssey 34-PC1500T |
| High output | 1,012 CCA for audio and performance cars | XS Power D3400 |
Types of AGM battery
| Type | How it works | Best for |
|---|---|---|
| Starting AGM | Built for cranking, sealed and maintenance-free | Everyday drivers who want strong starts |
| Premium AGM | Thin-plate pure lead, high CCA and reserve | Drivers wanting maximum power |
| OEM AGM | Group-matched replacement for start-stop cars | Start-stop cars, Group 48 fitment |
| High-output AGM | Built for heavy electrical loads and audio | Car audio and performance cars |
Detailed reviews
Each review below states what the pick does, the facts the maker documents, and who it fits — nothing more, nothing less.
Best Overall: OPTIMA RedTop 35
Best Overall
Why the OPTIMA RedTop 35 is our pick
The OPTIMA RedTop 35 is the best overall pick because it is the most widely fitting strong starter in this guide. OPTIMA describes the RedTop as a high-performance AGM starting battery built to deliver a powerful burst of ignition power, with SpiralCell technology using tightly wound layers of 99.99 percent pure lead instead of flat plates. The 35 delivers 720 cold cranking amps, with 90 minutes of reserve capacity, in a sealed maintenance-free case that mounts in almost any position.
The RedTop is a starting battery, not a deep-cycle battery, and that distinction matters: it is built for cranking, not for running accessories with the engine off for hours. The part number is 8020-164, and the listing names SAE terminals. The fit is straightforward: match the group size, the terminal layout and the CCA to your car, and do not buy on a headline number the maker never documented.
OPTIMA RedTop 35 key specs
- Maker: OPTIMA
- Model: RedTop 35, 8020-164
- Type: Sealed AGM, SpiralCell
- CCA: 720
- Reserve capacity: 90 minutes
- Capacity: 44 Ah as listed
- Terminals: SAE
- Voltage: 12 volts
- ASIN: B000MS9VZK
- Use: Starting, cars, trucks and SUVs
OPTIMA RedTop 35: fits and best for
The starting pick for a driver who wants strong cranking in a common group size.
OPTIMA RedTop 35 pros and watch-outs
Pros
- 720 CCA for strong starts
- SpiralCell pure-lead design
- Sealed, maintenance-free
- Mounts in almost any position
Watch-outs
- Starting battery, not deep-cycle
- Warranty claims need the right channel
- Check group size before ordering
OPTIMA RedTop 35: what owners report
- Owners report that the RedTop starts reliably in cold weather and that the sealed case means no water checks.
- Buyers note that the warranty claim process needs the receipt and registration on the OPTIMA website.
Owner coverage for this pick is drawn from listing questions and answers and forum reports; where coverage is thin, this guide says so rather than inventing a consensus.
OPTIMA RedTop 35: who should not buy
Do not buy the OPTIMA RedTop 35 if you need a deep-cycle battery for running accessories with the engine off, because the RedTop is built for starting.
OPTIMA RedTop 35: pair it with
Pair it with a battery terminal cleaner and a torque wrench for the hold-down, and keep the receipt and registration for warranty. See Alternatives to Automotive Adhesives for Automotive for related buying guidance.
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Tip: Read the maker manual before the first use, and keep the model number with the product so a replacement part is a five-minute search, not a guessing game. See AGM Batteries for Beginners Safety Tips for related buying guidance.
Best Premium AGM: Odyssey 34-PC1500T
Best Premium AGM
Why the Odyssey 34-PC1500T is our pick
The Odyssey 34-PC1500T is the premium pick because its numbers are the strongest here. Odyssey documents the Extreme Series 34-PC1500T as a 12-volt AGM battery with 850 cold cranking amps, 1,500 pulse hot cranking amps, 68 amp-hours at the 20-hour rate and 135 minutes of reserve capacity, in a BCI Group 34 case weighing 49.5 pounds. The thin-plate pure lead construction packs more plates into the case, which is how it delivers twice the power and three times the service life of a conventional battery, in the maker's words.
Odyssey warrants Extreme batteries for 4 years in an engine-starting application for personal car, light truck and SUV use, and the maker states that warranty does not cover batteries bought through unauthorised internet channels. The fit is straightforward: match the Group 34 size, the top-post terminals and the CCA to your car, buy from an authorised seller, and do not buy on a headline number the maker never documented.
Odyssey 34-PC1500T key specs
- Maker: Odyssey, EnerSys
- Model: 34-PC1500T, ODX-AGM34
- Type: Extreme Series AGM, thin-plate pure lead
- CCA: 850
- Pulse hot cranking amps: 1,500
- Capacity: 68 Ah at 20-hour rate
- Reserve capacity: 135 minutes
- Group size: BCI Group 34
- Weight: 49.5 pounds
- ASIN: B00249CSS2
Odyssey 34-PC1500T: fits and best for
The premium pick for a driver who wants maximum cranking and reserve capacity.
Odyssey 34-PC1500T pros and watch-outs
Pros
- 850 CCA, strongest here
- 135 minutes of reserve
- Thin-plate pure lead design
- 4-year engine-start warranty
Watch-outs
- Heavy at 49.5 pounds
- Warranty needs an authorised seller
- Check Group 34 fit before ordering
Odyssey 34-PC1500T: what owners report
- Owners report that the 34-PC1500T cranks hard in cold weather and holds up under heavy electrical loads.
- Buyers note that the weight and the price are the trade-offs for the performance.
Owner coverage for this pick is drawn from listing questions and answers and forum reports; where coverage is thin, this guide says so rather than inventing a consensus.
Odyssey 34-PC1500T: who should not buy
Do not buy the Odyssey 34-PC1500T if your car does not take a Group 34 battery, because the size will not fit the tray.
Odyssey 34-PC1500T: pair it with
Pair it with a battery terminal cleaner and a torque wrench for the hold-down, and keep the receipt and registration for warranty. See Alternatives to Best Cargo Securing Equipment Rental for related buying guidance.
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Tip: Read the maker manual before the first use, and keep the model number with the product so a replacement part is a five-minute search, not a guessing game. See All Weather Floor Liners vs Weatherready for related buying guidance.
Best OEM Replacement: ACDelco Gold 48AGM
Best OEM Replacement
Why the ACDelco Gold 48AGM is our pick
The ACDelco Gold 48AGM is the OEM-replacement pick in this guide. ACDelco documents it as a Professional AGM automotive battery in BCI Group 48, part number 88864541, with high cycling capability and strong charge acceptance, and states that it is necessary for start-stop vehicle applications. The warranty is a 36-month free replacement period, which is the clearest warranty statement in this guide.
Group 48 is the size many European and American cars take, and the silver-calcium construction is part of the design. The listing shows 70 amps and a 12-volt, 6-cell build, and the battery weighs 45.5 pounds. The fit is straightforward: match the Group 48 size and the terminal layout to your car, confirm start-stop compatibility, and do not buy on a headline number the maker never documented.
ACDelco Gold 48AGM key specs
- Maker: ACDelco
- Model: Gold 48AGM, 88864541
- Type: Professional AGM, silver-calcium
- Group size: BCI Group 48
- Warranty: 36-month free replacement
- Amperage: 70 amps as listed
- Cells: 6
- Voltage: 12 volts
- Weight: 45.5 pounds
- ASIN: B008FWCLHU
ACDelco Gold 48AGM: fits and best for
The OEM pick for a driver with a Group 48 car, especially a start-stop car.
ACDelco Gold 48AGM pros and watch-outs
Pros
- 36-month free replacement warranty
- Built for start-stop cars
- High cycling capability
- OEM-style fit for Group 48 cars
Watch-outs
- Group 48 only — check fit first
- CCA not published on the listing
- Heavy at 45.5 pounds
ACDelco Gold 48AGM: what owners report
- Owners report that the ACDelco Gold AGM is a reliable replacement for many vehicle types and that the warranty is straightforward.
- Buyers note that the Group 48 size must match the tray, or the battery will not fit.
Owner coverage for this pick is drawn from listing questions and answers and forum reports; where coverage is thin, this guide says so rather than inventing a consensus.
ACDelco Gold 48AGM: who should not buy
Do not buy the ACDelco Gold 48AGM if your car does not take a Group 48 battery, because the size will not fit the tray or the hold-down.
ACDelco Gold 48AGM: pair it with
Pair it with a battery terminal cleaner and a torque wrench for the hold-down, and keep the receipt and registration for warranty. See 12V Air Compressors Alternative Brands for related buying guidance.
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Tip: Read the maker manual before the first use, and keep the model number with the product so a replacement part is a five-minute search, not a guessing game. See Alternatives to Auxiliary Lights for Trucks for related buying guidance.
Best High Output: XS Power D3400
Best High Output
Why the XS Power D3400 is our pick
The XS Power D3400 is the high-output pick in this guide, and it is built for a different job from the others: powering a car audio system or a performance car with heavy electrical demand. XS Power rates the D3400, a 12-volt BCI Group 34 AGM battery, at 3,300 max amps, 1,150 cranking amps and 1,012 cold cranking amps, with 80 amp-hours and 160 minutes of reserve capacity. The maker recommends it for 4,000 watts as a secondary battery and 2,500 watts as a primary battery.
The D3400 uses M6 terminal bolts rather than SAE posts, so the buyer needs the right terminals, and XS Power covers it with a 3-year warranty. The sealed AGM design uses glass fibre mats to hold the electrolyte between the plates, and the maker builds it with 99.99 percent virgin lead. The fit is straightforward: match the Group 34 size and the M6 terminals to your car and audio system, and do not buy on a headline number the maker never documented.
XS Power D3400 key specs
- Maker: XS Power
- Model: D3400
- Type: AGM, sealed, glass fibre mats
- CCA: 1,012
- Max amps: 3,300
- Capacity: 80 Ah
- Reserve capacity: 160 minutes
- Group size: BCI Group 34
- Terminals: M6 terminal bolt
- ASIN: B005FYJ5B6
XS Power D3400: fits and best for
The high-output pick for car audio and performance cars with heavy electrical demand.
XS Power D3400 pros and watch-outs
Pros
- 1,012 CCA, highest here
- 160 minutes of reserve
- Built for 4,000-watt audio systems
- 3-year warranty
Watch-outs
- M6 terminals need the right hardware
- Built for audio, not every car
- Check Group 34 fit before ordering
XS Power D3400: what owners report
- Owners report that the D3400 holds voltage under heavy audio loads where ordinary batteries sag.
- Buyers note that the M6 terminals need separate posts if the car uses SAE terminals.
Owner coverage for this pick is drawn from listing questions and answers and forum reports; where coverage is thin, this guide says so rather than inventing a consensus.
XS Power D3400: who should not buy
Do not buy the XS Power D3400 if your car uses SAE posts and you have no M6 terminal hardware, because it will not connect.
XS Power D3400: pair it with
Pair it with the right M6 terminal hardware and a torque wrench for the hold-down, and keep the receipt for warranty. See 12V Air Compressors Alternative for Tires for related buying guidance.
We may earn a commission at no cost to you.
Tip: Read the maker manual before the first use, and keep the model number with the product so a replacement part is a five-minute search, not a guessing game. See Alternatives to Automotive Wiring Kits That Work for related buying guidance.
Best Compact AGM: OPTIMA RedTop 25
Best Compact AGM
Why the OPTIMA RedTop 25 is our pick
The OPTIMA RedTop 25 is the compact pick in this guide, and it exists because group size decides fit. It is the same RedTop family as the 35: a high-performance AGM starting battery with SpiralCell technology, 720 cold cranking amps and a sealed maintenance-free case, in the smaller 25 group size. The part number is 8025-160, the size is 10-5/16 by 6-13/16 by 7-5/8 inches, and the listing names SAE terminals.
The reserve capacity is 90 minutes, the same as the RedTop 35, so the smaller case does not mean a weaker start. The same starting-battery rule applies: it is built for cranking, not for deep cycling. The fit is straightforward: match the group size, the terminal layout and the CCA to your car, and do not buy on a headline number the maker never documented.
OPTIMA RedTop 25 key specs
- Maker: OPTIMA
- Model: RedTop 25, 8025-160
- Type: Sealed AGM, SpiralCell
- CCA: 720
- Reserve capacity: 90 minutes
- Size: 10-5/16 x 6-13/16 x 7-5/8 inches
- Terminals: SAE
- Voltage: 12 volts
- ASIN: B000MSBU9U
- Use: Starting, cars, trucks and SUVs
OPTIMA RedTop 25: fits and best for
The compact pick for a driver whose tray takes a smaller group size.
OPTIMA RedTop 25 pros and watch-outs
Pros
- 720 CCA in a compact case
- SpiralCell pure-lead design
- Sealed, maintenance-free
- Mounts in almost any position
Watch-outs
- Starting battery, not deep-cycle
- Smaller case, check fit first
- Warranty claims need the right channel
OPTIMA RedTop 25: what owners report
- Owners report that the RedTop 25 starts reliably in cold weather and fits cars where a Group 34 will not.
- Buyers note that confirming the group size before ordering avoids a return.
Owner coverage for this pick is drawn from listing questions and answers and forum reports; where coverage is thin, this guide says so rather than inventing a consensus.
OPTIMA RedTop 25: who should not buy
Do not buy the OPTIMA RedTop 25 if your car takes a larger group size, because a smaller battery in a big tray is a poor fit.
OPTIMA RedTop 25: pair it with
Pair it with a battery terminal cleaner and a torque wrench for the hold-down, and keep the receipt and registration for warranty. See 12V Air Compressors Alternative Options for related buying guidance.
We may earn a commission at no cost to you.
Tip: Read the maker manual before the first use, and keep the model number with the product so a replacement part is a five-minute search, not a guessing game. See Alternatives to Automotive Adhesives and Coatings for related buying guidance.
Spec comparison
| Spec | OPTIMA RedTop 35 | Odyssey 34-PC1500T | ACDelco Gold 48AGM | XS Power D3400 | OPTIMA RedTop 25 |
|---|---|---|---|---|---|
| Key detail | 720 CCA, SpiralCell AGM | 850 CCA, 135 min reserve | Group 48 AGM, 36-month warranty | 1,012 CCA, 160 min reserve | 720 CCA, compact group 25 |
| Best for | Drivers wanting strong starts | Drivers wanting maximum power | Start-stop cars, Group 48 | Car audio, performance cars | Smaller battery trays |
| Note | Starting battery only | Heavy, 49.5 pounds | CCA not published | M6 terminals | Starting battery only |
| Maker | OPTIMA | Odyssey, EnerSys | ACDelco | XS Power | OPTIMA |
| Model | RedTop 35, 8020-164 | 34-PC1500T, ODX-AGM34 | Gold 48AGM, 88864541 | D3400 | RedTop 25, 8025-160 |
| Coverage | Not published | BCI Group 34 | BCI Group 48 | BCI Group 34 | 10-5/16 x 6-13/16 x 7-5/8 inches |
| Systems | Sealed AGM, SpiralCell | Extreme Series AGM, thin-plate pure lead | Professional AGM, silver-calcium | AGM, sealed, glass fibre mats | Sealed AGM, SpiralCell |
| Updates | Not published | Not published | Not published | Not published | Not published |
| Features | Not published | Not published | Not published | Not published | Not published |
| Buying route | B000MS9VZK | B00249CSS2 | B008FWCLHU | B005FYJ5B6 | B000MSBU9U |
| Verdict | The strongest all-round AGM starter in this guide. | The premium AGM with the strongest figures here. | The OEM replacement with the clearest warranty. | The high-output AGM for audio and performance cars. | The compact AGM with full-size starting power. |
| Check Price | Check Price | Check Price | Check Price | Check Price | Check Price |
Installation and use basics
Remove the negative cable first and the positive cable second, and keep the cables clear of the terminals while you work. Lift the old battery out with both hands — these batteries weigh 40 to 50 pounds — and clean the tray and the cable ends before the new battery goes in. Set the new battery in the tray, fit the hold-down snugly, and connect the positive cable first and the negative cable second, tightening the terminals until they do not move. Check the terminal layout before you tighten anything, because a reversed layout will not reach the cables. After fitting, start the car and check that the charging system is working, and register the battery with the maker if the warranty asks for it. Keep the receipt. For related buying guidance, see the guides linked in the related section at the end of this article. For related buying guidance, see Alternatives to Best Anti-Seize Compounds for Engines and Alternatives to Best Anti-Seize Compounds for Harley.
Safety essentials
Never short the terminals. A wrench across both posts can burn and spark.
Wear eye protection and gloves when handling a battery.
Remove the negative cable first and fit it last.
Never lift a battery by its terminals.
Keep the battery upright and away from flames and sparks.
Recycle the old battery. Never put it in household waste.
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Troubleshooting
| Symptom | Likely cause | Fix |
|---|---|---|
| Car cranks slowly | Weak battery or poor terminal connection | Clean the terminals and check the charge before replacing |
| Battery will not hold a charge | Old battery or failing charging system | Test the alternator before buying a new battery |
| Terminals will not fit | Wrong terminal type or layout | Check the terminal type and positive side against the listing |
| Battery will not fit the tray | Wrong group size | Measure the tray and match the BCI group size exactly |
| Start-stop system stops working | Battery not rated for start-stop | Fit an AGM rated for start-stop use |
| Corrosion on terminals | Acid vapour and age | Clean with a terminal cleaner and fit protective caps |
Who should not buy these
Wrong group size: Do not buy any AGM battery without matching the group size to your car, because a battery that does not fit the tray is a return. See Adjustable Wrench vs for an alternative.
Deep-cycle use: Do not buy a starting AGM if you need to run accessories for hours with the engine off, because starting batteries are not built for deep cycling.
Old charging system: Do not buy a premium AGM if your alternator is failing, because a new battery will not fix a charging fault. See Alternatives to ATV Covers for Riding for an alternative.
Unauthorised seller: Do not buy from a seller the maker does not authorise, because some warranties do not cover those purchases.
Final verdict
OPTIMA RedTop 35: The strongest all-round AGM starter in this guide.
Odyssey 34-PC1500T: The premium AGM with the strongest figures here.
ACDelco Gold 48AGM: The OEM replacement with the clearest warranty.
XS Power D3400: The high-output AGM for audio and performance cars.
OPTIMA RedTop 25: The compact AGM with full-size starting power.
FAQ
What is an AGM battery?
An AGM battery is a sealed lead-acid battery in which the electrolyte is held in glass fibre mats between the plates, rather than as free liquid. That makes it spill-proof, maintenance-free and more resistant to vibration, and it suits cars with start-stop systems and heavy electrical loads.
How do I know which group size my car takes?
Check the owner's manual, the label on the old battery, or the maker's fitment guide, and measure the tray, the hold-down and the terminal positions. The BCI group size must match exactly, because a battery in the wrong group size will not fit.
What does CCA mean?
CCA is cold cranking amps: the current a battery can deliver for 30 seconds at zero degrees Fahrenheit while keeping at least 7.2 volts. More CCA means a stronger start in cold weather, but the group size must match first.
Are OPTIMA RedTop batteries deep-cycle?
No. The RedTop is a starting battery built for cranking power, not for running accessories with the engine off for hours. The YellowTop is the dual-purpose battery in the OPTIMA line, and the BlueTop is for marine and RV use.
Do AGM batteries work in start-stop cars?
Yes, and they are the right choice for most start-stop cars. AGM batteries have high cycling capability and strong charge acceptance, which is what start-stop driving demands. The ACDelco Gold 48AGM in this guide is documented for start-stop use.
How long does an AGM battery last?
Life depends on climate, use and the charging system, and makers state different warranty periods rather than a single life figure. The Odyssey 34-PC1500T carries a 4-year engine-start warranty, and the ACDelco Gold 48AGM carries a 36-month free replacement warranty.
Can I replace a flooded battery with an AGM battery?
In most cars, yes, if the group size, terminals and CCA match. Some cars with battery management systems need the new battery registered with the car, so check the owner's manual or the maker guidance before fitting.
What if the battery will not fit my tray?
Stop and measure the tray, the hold-down and the terminal positions against the listing dimensions. If the group size is wrong, return the battery rather than forcing it, because a battery that does not sit square in the tray is a safety risk.
Sources
Amazon listing, OPTIMA RedTop 35, ASIN B000MS9VZK
Amazon listing, Odyssey 34-PC1500T, ASIN B00249CSS2
Amazon listing, ACDelco Gold 48AGM, ASIN B008FWCLHU
Amazon listing, XS Power D3400, ASIN B005FYJ5B6
Amazon listing, OPTIMA RedTop 25, ASIN B000MSBU9U
OPTIMA RedTop battery guide, Impact Battery
Best Optima Batteries, Of Zen and Computing
Group 34 battery guide, Ufine Battery
XS Power D3400, Pro Audio Center
NAPA, Optima Red Top AGM Battery BCI 34
By Leo, Founder, WinchInsider
Leo researches winches and automotive accessories from manufacturer documents, manuals and owner reports, and writes every guide on this site from that evidence. He does not test products; every claim here traces to a maker document or a linked owner source.
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