TOPDON JS3000
A truck-capable pack for gas engines up to 9 liters that doubles as a 45 W USB-C laptop power bank. Worth it if you want TOPDON quality and a carry case.
Amazon $139.99$139.99
3.6/5
For drivers who want a light pack that handles most cars and V8s for around $110, with a longer warranty than NOCO. Those who need quick recharges should look at a 60 W USB-C model.
- 8 L gas, 4.5 L dieselEngines
- 37 WhBattery
- YesOverride
- 2 lbWeight
- 2 yearsWarranty
Check price at Amazon$108.94
Price checked October 22, 2026. As an Amazon Associate we earn from qualifying purchases.
Pros
- Starts V8s up to 8.0 L gas at a low price
- Override and Pre-Boost modes help with a completely flat battery
- Wireless pad charges a phone without a cable
- Two-year warranty, longer than most rivals
Cons
- Slow to recharge: 4 to 5 hours at 18 W
- Diesel rating is only 4.5 L
- No published cold-weather rating
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 | SL1674 |
|---|---|
| Starting | |
| Rated engines | 8 L gas, 4.5 L diesel |
| Peak amps (maker) | 1,500 A |
| Voltage | 12 V |
| Manual override | Yes |
| Battery and charging | |
| Chemistry | Lithium-ion |
| Capacity | 37 Wh |
| USB-C input | 18 W |
| Recharge time | 5 hours |
| USB outputs | USB-C 3 A, USB-A 3 A, 10 W wireless pad |
| Build | |
| Flashlight | Yes |
| Air compressor | No |
| Dimensions | 9.83 x 4.81 x 5.12 in |
| Weight | 2 lb |
| Warranty | 2 years |
| Released | 2025-05 |
Alternatives in this engine size
TOPDON JumpSurge 2000Pro
A mid-size pack with a boost mode for cars, SUVs and gas pickups up to 8 liters. Good if you want a protective case and a trusted brand, but it recharges slowly.
Amazon $99.99$99.99
NOCO Boost X GBX55
For owners of V8 cars, half-ton pickups and mid-size SUVs who want a light pack that recharges fast over USB-C. It is the sweet spot of NOCO’s Boost X line for most drivers.
Amazon $174.95$174.95
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