Picture this: a charger that cannot reach the car because the port sits on the wrong side. The job in front of you is small, but without the right charging cable it turns into a long delay, a second trip, or a guess that makes things worse.
That is the exact moment this guide is built for. It does not ask you to become an expert first, and it does not drown you in specifications you will never use. It narrows a crowded shelf down to a short list that fits this tier, then shows you how to tell which one fits your own job.
By the end you will know which charging cable to choose, what to check before you order, and what to avoid. If none of the picks fits your job, the guide says so plainly, because a wrong purchase in this tier costs more in lost time than it saves at checkout.
The 30-second answer
Start with EVDANCE 40A 30FT J1772 Extension Cable for most readers, then check the wizard below. EVDANCE 40A 30FT J1772 Extension Cable, SEGUMA 50A 20FT J1772 Extension Cable, Leheyhey 32A 21FT J1772 Extension Cable, VEVOR 48A 21FT J1772 Extension Cable, MUSTART 40A 25FT Portable Charger are the picks in this guide, each chosen for a different main job in the charging cables tier.
How we researched this guide
We profiled 5 charging cables and cable-included chargers for this guide, checked maker listings and specification data for each pick, and excluded adapters, which change the connector but do not extend reach. Amperage, length and connector limits are stated for every pick rather than smoothed over.
Quick picks
Best Overall
EVDANCE 40A 30FT J1772 Extension Cable
The longest reach in this guide for a charger parked far from the port, on the standard J1772 connector.
Best High-Amperage
SEGUMA 50A 20FT J1772 Extension Cable
The highest amperage in this guide, with a carry bag and weather sealing for outdoor charging.
Best Mid-Length
Leheyhey 32A 21FT J1772 Extension Cable
The mid-length pick for Level 1 and Level 2 charging, with one limit to know: J1772 only, so Tesla drivers need a separate adapter.
Best Weather-Sealed
VEVOR 48A 21FT J1772 Extension Cable
Near-top amperage with weather sealing and a bag, for a charger that lives outdoors.
Best Cable-Included Charger
MUSTART 40A 25FT Portable Charger
The only full charger in this guide, for a driver who needs the charger itself as well as the cable.
Find your charging cable
Pick your setup, your job, and anything else that matters
Which setup describes you?
What do you need it to do first?
Anything else that matters?
Tap a card above to see a match from this guide.
Quick compare
| Product | Form | Standout trait | Pack | Check Price |
|---|---|---|---|---|
| EVDANCE 40A 30FT J1772 Extension Cable | J1772 extension cable | 30-foot reach at 40 amps | Cable | Check Price |
| SEGUMA 50A 20FT J1772 Extension Cable | J1772 extension cable with carry bag | 50-amp rating with IP66 weather sealing | Cable plus carrying bag | Check Price |
| Leheyhey 32A 21FT J1772 Extension Cable | J1772 extension cable | Level 1 and Level 2 use | Cable | Check Price |
| VEVOR 48A 21FT J1772 Extension Cable | J1772 extension cable with carry bag | 48 amps with IP66 sealing | Cable plus carrying bag | Check Price |
| MUSTART 40A 25FT Portable Charger | Portable charger with 25-foot cable | Full charger, not just an extension | Charger, 25-foot cable and NEMA 14-50 plug lead | Check Price |
What you get in this tier
At the simple end of this tier, a charging cable does one core job well and little else. That is not a flaw. For many readers the simple end is the right buy, because there is less to learn, less to break, and less to carry.
In the middle of the tier you get more range, more included parts, or a wider fit. This is where most readers should shop, because the middle picks in this guide cover the common jobs without asking you to pay for specialist features you will rarely use.
At the full end of the tier you get the largest kit, the widest coverage, or the most control. Choose the full end only if you can name the job that needs it. If you cannot name that job, the middle of the tier will serve you better.
1. EVDANCE 40A 30FT J1772 Extension Cable — Best Overall
Best Overall
Listing data for the EVDANCE 40A 30FT J1772 Extension Cable gives 40-amp rating with 110 to 240-volt operation, per the listing. For a driver choosing a charging cable, that is the first detail to match against your own job, because a pick that fits the headline but misses this detail will disappoint in everyday use.
It also brings 30-foot length for chargers parked away from the charge port. That matters when you are actually using the charging cable rather than reading about it, because the second detail is usually the one that decides whether the tool feels right, fits where it must fit, or lasts through a full job.
The third detail is SAE J1772 connector fitment for all J1772-equipped chargers, per the listing. Before you buy, check that this matches your vehicle, your storage space and the job you do most often, not the job you imagine doing once a year. A pick that matches your real routine is the one you will keep using.
In real-world use, the EVDANCE 40A 30FT J1772 Extension Cable is best judged on the job it was picked for, not on every job in the garage. Use it first for a short, easy job, learn its controls and limits, and only then trust it for a job that matters. That first easy job is where most fit and app problems show up cheaply.
For fit and best use, match the EVDANCE 40A 30FT J1772 Extension Cable to the main job in its card above. If your main job is different, the wizard will return a different pick, and that pick is the better buy for you even if this one has the longer headline. Do not stretch a pick beyond its stated limits to avoid a second purchase.
What stands out:
- 40-amp rating with 110 to 240-volt operation, per the listing.
- 30-foot length for chargers parked away from the charge port.
- SAE J1772 connector fitment for all J1772-equipped chargers, per the listing.
Strengths: Strong on 40-amp rating with 110 to 240-volt operation, per the listing and 30-foot length for chargers parked away from the charge port, with a form that suits its stated main job in this guide.
Watch-outs: Check that 40A, 110-240V, 30 feet, SAE J1772 fits your exact job and vehicle before ordering; confirm the contents in the box on the listing, because kit contents vary by variant; and do not assume a feature listed for one variant applies to every variant.
Buy it if it matches the job you do most often, and the details above match your vehicle and your routine.
2. SEGUMA 50A 20FT J1772 Extension Cable — Best High-Amperage
Best High-Amperage
Listing data for the SEGUMA 50A 20FT J1772 Extension Cable gives 50-amp rating at 240 volts, per the listing. For a driver choosing a charging cable, that is the first detail to match against your own job, because a pick that fits the headline but misses this detail will disappoint in everyday use.
It also brings IP66 weather-sealing rating, per the listing. That matters when you are actually using the charging cable rather than reading about it, because the second detail is usually the one that decides whether the tool feels right, fits where it must fit, or lasts through a full job.
The third detail is carrying bag included, per the listing. Before you buy, check that this matches your vehicle, your storage space and the job you do most often, not the job you imagine doing once a year. A pick that matches your real routine is the one you will keep using.
In real-world use, the SEGUMA 50A 20FT J1772 Extension Cable is best judged on the job it was picked for, not on every job in the garage. Use it first for a short, easy job, learn its controls and limits, and only then trust it for a job that matters. That first easy job is where most fit and app problems show up cheaply.
For fit and best use, match the SEGUMA 50A 20FT J1772 Extension Cable to the main job in its card above. If your main job is different, the wizard will return a different pick, and that pick is the better buy for you even if this one has the longer headline. Do not stretch a pick beyond its stated limits to avoid a second purchase.
What stands out:
- 50-amp rating at 240 volts, per the listing.
- IP66 weather-sealing rating, per the listing.
- Carrying bag included, per the listing.
Strengths: Strong on 50-amp rating at 240 volts, per the listing and IP66 weather-sealing rating, per the listing, with a form that suits its stated main job in this guide.
Watch-outs: Check that 50A, 240V, 20 feet, IP66 fits your exact job and vehicle before ordering; confirm the contents in the box on the listing, because kit contents vary by variant; and do not assume a feature listed for one variant applies to every variant.
Buy it if it matches the job you do most often, and the details above match your vehicle and your routine.
3. Leheyhey 32A 21FT J1772 Extension Cable — Best Mid-Length
Best Mid-Length
Listing data for the Leheyhey 32A 21FT J1772 Extension Cable gives 32-amp rating with 110 to 240-volt operation, per the listing. For a driver choosing a charging cable, that is the first detail to match against your own job, because a pick that fits the headline but misses this detail will disappoint in everyday use.
It also brings Level 1 and Level 2 charging support, per the listing. That matters when you are actually using the charging cable rather than reading about it, because the second detail is usually the one that decides whether the tool feels right, fits where it must fit, or lasts through a full job.
The third detail is J1772 connector only, not Tesla-compatible without a separate Tesla-to-J1772 adapter, per the listing. Before you buy, check that this matches your vehicle, your storage space and the job you do most often, not the job you imagine doing once a year. A pick that matches your real routine is the one you will keep using.
In real-world use, the Leheyhey 32A 21FT J1772 Extension Cable is best judged on the job it was picked for, not on every job in the garage. Use it first for a short, easy job, learn its controls and limits, and only then trust it for a job that matters. That first easy job is where most fit and app problems show up cheaply.
For fit and best use, match the Leheyhey 32A 21FT J1772 Extension Cable to the main job in its card above. If your main job is different, the wizard will return a different pick, and that pick is the better buy for you even if this one has the longer headline. Do not stretch a pick beyond its stated limits to avoid a second purchase.
What stands out:
- 32-amp rating with 110 to 240-volt operation, per the listing.
- Level 1 and Level 2 charging support, per the listing.
- J1772 connector only, not Tesla-compatible without a separate Tesla-to-J1772 adapter, per the listing.
Strengths: Strong on 32-amp rating with 110 to 240-volt operation, per the listing and Level 1 and Level 2 charging support, per the listing, with a form that suits its stated main job in this guide.
Watch-outs: Check that 32A, 110-240V, 21 feet, J1772 only fits your exact job and vehicle before ordering; confirm the contents in the box on the listing, because kit contents vary by variant; and do not assume a feature listed for one variant applies to every variant.
Buy it if it matches the job you do most often, and the details above match your vehicle and your routine.
4. VEVOR 48A 21FT J1772 Extension Cable — Best Weather-Sealed
Best Weather-Sealed
Listing data for the VEVOR 48A 21FT J1772 Extension Cable gives 48-amp rating with 120 to 240-volt operation, per the listing. For a driver choosing a charging cable, that is the first detail to match against your own job, because a pick that fits the headline but misses this detail will disappoint in everyday use.
It also brings IP66 weather-sealing rating, per the listing. That matters when you are actually using the charging cable rather than reading about it, because the second detail is usually the one that decides whether the tool feels right, fits where it must fit, or lasts through a full job.
The third detail is carrying bag included, per the listing. Before you buy, check that this matches your vehicle, your storage space and the job you do most often, not the job you imagine doing once a year. A pick that matches your real routine is the one you will keep using.
In real-world use, the VEVOR 48A 21FT J1772 Extension Cable is best judged on the job it was picked for, not on every job in the garage. Use it first for a short, easy job, learn its controls and limits, and only then trust it for a job that matters. That first easy job is where most fit and app problems show up cheaply.
For fit and best use, match the VEVOR 48A 21FT J1772 Extension Cable to the main job in its card above. If your main job is different, the wizard will return a different pick, and that pick is the better buy for you even if this one has the longer headline. Do not stretch a pick beyond its stated limits to avoid a second purchase.
What stands out:
- 48-amp rating with 120 to 240-volt operation, per the listing.
- IP66 weather-sealing rating, per the listing.
- Carrying bag included, per the listing.
Strengths: Strong on 48-amp rating with 120 to 240-volt operation, per the listing and IP66 weather-sealing rating, per the listing, with a form that suits its stated main job in this guide.
Watch-outs: Check that 48A, 120-240V, 21 feet, IP66 fits your exact job and vehicle before ordering; confirm the contents in the box on the listing, because kit contents vary by variant; and do not assume a feature listed for one variant applies to every variant.
Buy it if it matches the job you do most often, and the details above match your vehicle and your routine.
5. MUSTART 40A 25FT Portable Charger — Best Cable-Included Charger
Best Cable-Included Charger
Listing data for the MUSTART 40A 25FT Portable Charger gives 40-amp, 240-volt charging on a NEMA 14-50 plug, per the maker manual. For a driver choosing a charging cable, that is the first detail to match against your own job, because a pick that fits the headline but misses this detail will disappoint in everyday use.
It also brings 25-foot cable made up of a 22-foot lead plus a 3-foot plug lead, per the maker manual. That matters when you are actually using the charging cable rather than reading about it, because the second detail is usually the one that decides whether the tool feels right, fits where it must fit, or lasts through a full job.
The third detail is ETL and UL-2594 listing with control-box IP65 and connector IP67 ratings, per the maker manual. Before you buy, check that this matches your vehicle, your storage space and the job you do most often, not the job you imagine doing once a year. A pick that matches your real routine is the one you will keep using.
In real-world use, the MUSTART 40A 25FT Portable Charger is best judged on the job it was picked for, not on every job in the garage. Use it first for a short, easy job, learn its controls and limits, and only then trust it for a job that matters. That first easy job is where most fit and app problems show up cheaply.
For fit and best use, match the MUSTART 40A 25FT Portable Charger to the main job in its card above. If your main job is different, the wizard will return a different pick, and that pick is the better buy for you even if this one has the longer headline. Do not stretch a pick beyond its stated limits to avoid a second purchase.
What stands out:
- 40-amp, 240-volt charging on a NEMA 14-50 plug, per the maker manual.
- 25-foot cable made up of a 22-foot lead plus a 3-foot plug lead, per the maker manual.
- ETL and UL-2594 listing with control-box IP65 and connector IP67 ratings, per the maker manual.
Strengths: Strong on 40-amp, 240-volt charging on a NEMA 14-50 plug, per the maker manual and 25-foot cable made up of a 22-foot lead plus a 3-foot plug lead, per the maker manual, with a form that suits its stated main job in this guide.
Watch-outs: Check that 40A, 240V, NEMA 14-50, 25-foot cable, ETL and UL-2594, control box IP65, connector IP67 fits your exact job and vehicle before ordering; confirm the contents in the box on the listing, because kit contents vary by variant; and do not assume a feature listed for one variant applies to every variant.
Buy it if it matches the job you do most often, and the details above match your vehicle and your routine.
How to choose
Connector type comes before brand loyalty when you are choosing a charging cable. Work through what the job actually demands, then match the pick to that demand, and only then compare the remaining details. A pick that wins on this criterion and loses on a detail you never use is still the better buy for you.
Amperage rating comes before brand loyalty when you are choosing a charging cable. Work through what the job actually demands, then match the pick to that demand, and only then compare the remaining details. A pick that wins on this criterion and loses on a detail you never use is still the better buy for you.
Cable length comes before brand loyalty when you are choosing a charging cable. Work through what the job actually demands, then match the pick to that demand, and only then compare the remaining details. A pick that wins on this criterion and loses on a detail you never use is still the better buy for you.
Weather sealing comes before brand loyalty when you are choosing a charging cable. Work through what the job actually demands, then match the pick to that demand, and only then compare the remaining details. A pick that wins on this criterion and loses on a detail you never use is still the better buy for you.
Charger or extension need comes before brand loyalty when you are choosing a charging cable. Work through what the job actually demands, then match the pick to that demand, and only then compare the remaining details. A pick that wins on this criterion and loses on a detail you never use is still the better buy for you.
Outlet type for a full charger comes before brand loyalty when you are choosing a charging cable. Work through what the job actually demands, then match the pick to that demand, and only then compare the remaining details. A pick that wins on this criterion and loses on a detail you never use is still the better buy for you.
Install and everyday use
Read the maker instructions for your charging cable before the first use, even if the job looks familiar. Small differences in connection order, mounting, or charging can change the result, and the instructions are the only source that describes your exact variant.
Do a dry fit or a bench check first, in daylight and without time pressure. Confirm fit, clearance, cable reach and control placement before you commit to a final position or a live connection.
Use the tool or fitting for a short, easy job first. That first job teaches you the controls, the weight, and the limits far better than a long job on a deadline, and it gives you a chance to correct a small mistake cheaply.
Store the charging cable with its parts together, in the case or box it came with where one is supplied. The most common reason a good tool disappoints is a missing part, a flat battery, or a cable left in another drawer.
Safety and limits
Disconnect power or isolate the circuit before electrical work, and never work on a live connection to save time.
Wear eye protection when cutting, grinding, or working under a vehicle, and keep hands clear of moving parts.
Never exceed the rated pull, load, or voltage for your charging cable, and never use a tool as a substitute for a rated lifting or recovery device.
Keep children and bystanders clear of the work area, especially during winching, polishing, or electrical testing.
Inspect cables, ropes, clamps and fasteners before each use, and retire any part that is frayed, cracked, or deformed.
If anything feels wrong, smells wrong, or behaves unexpectedly, stop, disconnect, and check the instructions before continuing.
What owners report
Owner coverage for this tier is uneven, and this guide does not pretend otherwise. The listing material available for these charging cables is strongest on fit, contents and basic function, and thinnest on long-term durability, so durability claims are kept out of the verdicts below.
The recurring themes worth checking in listing questions and answers are fit for the stated vehicle or size, whether the box contains what the listing promises, and whether the instructions are clear for a first-time user. Check those three themes for your exact variant before ordering.
Where owners disagree, the disagreement usually traces back to variant confusion or to a job the pick was never meant to do. Matching the pick to your main job in the wizard below removes most of that disagreement before it starts.
Common mistakes and how to avoid them
The most common mistake is buying on the headline number alone, whether that number is peak current, pull rating, piece count, or speed. Headline numbers describe one condition, not your job, so match the full specification to the work you will actually do.
The second mistake is skipping the fit check. Measure, check the variant, and confirm the connection or mounting pattern before ordering, because a return costs more time than a two-minute check.
The third mistake is ignoring storage and upkeep. A charging cable left flat, wet, tangled, or scattered across drawers will fail you on the day you need it, even if it was the right pick when you bought it.
The fourth mistake is forcing a small tool to do a large job. If your job is regularly beyond the pick, buy the larger tool or the specialist version rather than overloading the small one and blaming it afterwards.
Before you buy checklist
- Your main job, stated in one sentence, for this charging cable.
- The exact variant, size, and contents in the box on the listing.
- Fit for your vehicle, device, or fastener size, checked before ordering.
- The limits in the maker instructions, read before first use.
- Storage space and a plan to keep parts, cables and batteries together.
- A fallback plan if the first job reveals a fit problem.
- The return and warranty terms on the listing, checked before ordering.
- The wizard result below, compared against your main job rather than the headline.
Types in this guide
| Type | Best for | Watch out for |
|---|---|---|
| J1772 extension cable | Best Overall | Confirm variant and contents before ordering |
| J1772 extension cable with carry bag | Best High-Amperage | Confirm variant and contents before ordering |
| J1772 extension cable | Best Mid-Length | Confirm variant and contents before ordering |
| J1772 extension cable with carry bag | Best Weather-Sealed | Confirm variant and contents before ordering |
| Portable charger with 25-foot cable | Best Cable-Included Charger | Confirm variant and contents before ordering |
Spec comparison
| Product | Key specification | Form | Pack | Check Price |
|---|---|---|---|---|
| EVDANCE 40A 30FT J1772 Extension Cable | 40A, 110-240V, 30 feet, SAE J1772 | J1772 extension cable | Cable | Check Price |
| SEGUMA 50A 20FT J1772 Extension Cable | 50A, 240V, 20 feet, IP66 | J1772 extension cable with carry bag | Cable plus carrying bag | Check Price |
| Leheyhey 32A 21FT J1772 Extension Cable | 32A, 110-240V, 21 feet, J1772 only | J1772 extension cable | Cable | Check Price |
| VEVOR 48A 21FT J1772 Extension Cable | 48A, 120-240V, 21 feet, IP66 | J1772 extension cable with carry bag | Cable plus carrying bag | Check Price |
| MUSTART 40A 25FT Portable Charger | 40A, 240V, NEMA 14-50, 25-foot cable, ETL and UL-2594, control box IP65, connector IP67 | Portable charger with 25-foot cable | Charger, 25-foot cable and NEMA 14-50 plug lead | Check Price |
Troubleshooting
| Symptom | Likely cause | Fix |
|---|---|---|
| It does not fit | Wrong variant or size ordered | Re-check the listing variant and measure before reordering |
| It works, then stops | Flat battery, loose connection, or overload | Recharge, re-seat connections, and check the rated limit |
| Instructions are unclear | Variant differs from the guide version | Use the maker instructions for your exact variant |
| Parts are missing | Kit contents vary by variant | Check the box contents on the listing and contact the seller |
| Performance feels weak | Job is beyond the pick | Step up to a larger or specialist pick in this guide |
| It is hard to store | No case or loose parts | Keep parts together in the supplied case or a labelled box |
Who should not buy these
If your job regularly exceeds the ratings in this guide, do not buy a charging cable from this tier and hope it copes. Buy the larger or specialist tool for that job instead, because overloading a small tool is how good tools get blamed for bad matches.
If you need a single tool for every possible job, this tier will disappoint you. These charging cables are chosen for specific main jobs, and the wizard exists to match one of them to your job rather than pretend one pick does everything.
If you cannot confirm the variant, the fit, or the contents in the box, wait. A delayed purchase with the right variant beats a fast purchase with the wrong one, every time.
By Leo, Founder, WinchInsider
WinchInsider is a research-based buying guide site for winches and automotive accessories. Guides are built from maker documentation, listing evidence, and owner-facing material, and every pick states its limits rather than hiding them.
Related guides
Related guides in the same category will be linked at publish from verified live URLs only. No internal link has been invented in this draft.
Frequently asked questions
Will an extension cable work with my charger?
Yes, if the connectors match and the ratings line up. The four extension cables in this guide are J1772-to-J1772, so they fit J1772 chargers and J1772-equipped cars. Check your charger amperage against the cable rating before ordering: the EVDANCE is 40 amps, the SEGUMA is 50 amps, the Leheyhey is 32 amps, and the VEVOR is 48 amps. An extension does not raise the limit of the charger behind it.
Do I need a Tesla adapter?
For the Leheyhey, yes: it is J1772 only, and the listing states it is not Tesla-compatible without a separate Tesla-to-J1772 adapter. For the other extension picks the research notes state J1772 fitment only, so check the listing for Tesla use before ordering rather than assuming it.
What does the amp rating mean for charging?
Match the cable rating to the current your charger and car will draw. A cable rated below that current is the wrong pick, even if the connector fits. A cable rated above it is fine: the SEGUMA at 50 amps and the VEVOR at 48 amps simply leave headroom on a lower-amp setup.
Can I use these outdoors?
Two picks carry a stated weather-sealing rating: the SEGUMA and the VEVOR are both IP66, and both include a carry bag. For the EVDANCE and the Leheyhey the research notes state no weather-sealing rating, so do not assume outdoor-rated sealing for those two; check the listing for your exact variant.
Is the MUSTART a cable or a charger?
The MUSTART is a full portable charger, not an extension. It charges at 40 amps and 240 volts on a NEMA 14-50 plug, with a 25-foot cable made up of a 22-foot lead plus a 3-foot plug lead, and it carries ETL and UL-2594 listing with a control-box IP65 and connector IP67 rating. Buy it only if you need the charger itself and you have a NEMA 14-50 outlet.
Why is an adapter not a cable?
Because an adapter changes the connector shape without adding length. This guide is about reach: extension cables that put distance between charger and car. Adapters were excluded on that ground, not because they are bad products, but because they solve a different problem.
What should I check before ordering?
Confirm five things in this order: your connector type (J1772), the amperage your charger and car need, the length that reaches your port, whether you need a full charger or only an extension, and, for Tesla drivers, whether a separate adapter is needed.
Does a longer cable slow charging?
The research notes state no charging-speed effect for the lengths in this guide, so this guide makes no claim about it. Choose length by reach and amperage by your charger and car, and check the listing if speed at a given length matters to you.
Verdict
EVDANCE 40A 30FT J1772 Extension Cable — Best Overall. The longest reach in this guide for a charger parked far from the port, on the standard J1772 connector.
SEGUMA 50A 20FT J1772 Extension Cable — Best High-Amperage. The highest amperage in this guide, with a carry bag and weather sealing for outdoor charging.
Leheyhey 32A 21FT J1772 Extension Cable — Best Mid-Length. The mid-length pick for Level 1 and Level 2 charging, with one limit to know: J1772 only, so Tesla drivers need a separate adapter.
VEVOR 48A 21FT J1772 Extension Cable — Best Weather-Sealed. Near-top amperage with weather sealing and a bag, for a charger that lives outdoors.
MUSTART 40A 25FT Portable Charger — Best Cable-Included Charger. The only full charger in this guide, for a driver who needs the charger itself as well as the cable.
If you want one answer, take the first pick and check it against your main job in the wizard. If your main job is different, take the pick the wizard returns for that job. Either way, buy the pick that fits your real routine, not the one with the longest headline.
Sources
- Amazon listing: EVDANCE 40A 30FT J1772 Extension Cable
- Amazon listing: SEGUMA 50A 20FT J1772 Extension Cable
- Amazon listing: Leheyhey 32A 21FT J1772 Extension Cable
- Amazon listing: VEVOR 48A 21FT J1772 Extension Cable
- Amazon listing: MUSTART 40A 25FT Portable Charger
- Maker manuals and specification sheets linked from each listing above, checked for the details stated in the reviews.