Fanttik Potent T10
#4 in Cars and SUVsFull review
A stylish, very compact pack for cars and small SUVs up to 7 liters that doubles as a phone charger. Pick it for portability, not for big trucks or deep cold.
Amazon $89.99$89.99
3.5/5
A small, inexpensive pack for four- and six-cylinder cars and small SUVs. Fine for mild climates, but colder regions should look at packs rated below 0 °F.
- 6.5 L gas, 4 L dieselEngines
- 37 WhBattery
- YesOverride
- 2.1 lbWeight
- 1 yearWarranty
Check price at Amazon$69.95
Price checked October 30, 2026. As an Amazon Associate we earn from qualifying purchases.
Pros
- Starts gas engines up to 6.5 L and diesels up to 4 L
- Boost mode starts a vehicle with a battery at 0 V
- Small enough for a glovebox
Cons
- Rated only down to 14 °F for jump starting
- Slow 15 W USB-C input and no USB-C output
- Too small for V8 trucks and most diesels
- One-year warranty
How it scores
The rating comes from 4 measured or published factors, each scored 0-100 against fixed reference points for its engine size. How we rank explains each one.
Specifications
| Model number | JS1500 |
|---|---|
| Starting | |
| Rated engines | 6.5 L gas, 4 L diesel |
| Peak amps (maker) | 1,500 A |
| Voltage | 12 V |
| Manual override | Yes |
| Lowest operating temperature | 14 °F |
| Battery and charging | |
| Chemistry | Lithium-ion |
| Capacity | 37 Wh |
| Capacity (mAh) | 10,000 mAh |
| USB-C input | 15 W |
| USB outputs | USB-A QC 18 W, USB-A 5 V/2.4 A |
| Build | |
| Flashlight | Yes |
| Air compressor | No |
| Dimensions | 7.72 x 4.92 x 3.62 in |
| Weight | 2.1 lb |
| Warranty | 1 year |
| Released | 2023-12 |
Alternatives in this engine size
Clore Jump-N-Carry JNC305
#5 in Cars and SUVsFull review
For drivers of four- and six-cylinder cars who want a cheap, sturdy pack from a pro tool brand. Those in very cold places should pick a pack rated below 0 °F.
Amazon $72.24$72.24
NOCO Boost GB20
#7 in Cars and SUVsFull review
For motorcycles, ATVs, lawn tractors and small four-cylinder cars where a compact, cheap pack is enough. Anything with a V6 or bigger needs a GB40 or larger.
Amazon $79.95$79.95
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