expired Posted by Meowssi | Staff • 2d ago
Jun 18, 2025 3:39 PM
Item 1 of 2
Item 1 of 2
expired Posted by Meowssi | Staff • 2d ago
Jun 18, 2025 3:39 PM
Acmount 4000A Car Jump Starter w/ 10,000mAh Power Bank $18.32 + Free Shipping w/ Prime or on $35+
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https://www.youtube.com/watch?v=0...XS8
I've purchased cheap no namers over the years. Never had one blow up. All jumped at least what they quoted. Worth the risk (to me) which is what you have to weigh when deciding on stuff like this.
most other starters list 20,000mah
but who knows what is really inside
I just wish these were lifepo4 because never know when they are going to literally blowup years later
See how this one is $20 after coupon and claims 5000a start 20,000mah bank
https://www.amazon.com/Booster-Ba...B0D9WY86VF
I got that one last year and it really will start a car with a 100% completely dead battery, which amazed me but I have no idea how many years it will last
All the "magic" is in the box attached to the clamps, I suspect that is some kind of super-capacitor so if it blows up you at least have a powerbank for awhile and they appear to be universal so replaceable
see this review (not mine)
So I measured capacity in and out of the battery pack and did not get what they claim. If you look at my pictures the battery pack from empty only took 7200 mAH and it only outputed 4000 mAH. So the claim of 20,000 mAH is false. Also the claim of 5000 amp output is very wrong. 5000 amps at 12 volts would need massive 1 inch cables, this battery pack does not have that.
most other starters list 20,000mah
but who knows what is really inside
I just wish these were lifepo4 because never know when they are going to literally blowup years later
See how this one is $20 after coupon and claims 5000a start 20,000mah bank
https://www.amazon.com/Booster-Ba...B0D9WY86VF [amazon.com]
I got that one last year and it really will start a car with a 100% completely dead battery, which amazed me but I have no idea how many years it will last
All the "magic" is in the box attached to the clamps, I suspect that is some kind of super-capacitor so if it blows up you at least have a powerbank for awhile and they appear to be universal so replaceable
see this review (not mine)
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