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
3.1/5
For garages, fleets and anyone who keeps a booster on a charger in the shop and wants something simple and durable. Drivers who want a pack for the glove box should get a lithium starter.
- No liter ratingEngines
- 18 lbWeight
- 1 yearWarranty
Check price at Amazon$126.02
Price checked October 22, 2026. As an Amazon Associate we earn from qualifying purchases.
Pros
- Long 46-inch heavy #2 AWG cables reach batteries in awkward spots
- Can stay plugged into AC indefinitely, so it’s always ready
- Can also recharge from a running vehicle’s 12 V socket, about 20 minutes after a jump
Cons
- Heavy at 18 lb
- No USB ports, flashlight or reverse-polarity protection
- Needs your own extension cord to recharge
- Weakens when stored cold; Clore suggests keeping it above 50 °F
- No published engine-size 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 | JNC660 |
|---|---|
| Starting | |
| Rated engines | Most cars (no liter rating); built for garages and fleets |
| Peak amps (maker) | 1,700 A |
| Cranking amps | 425 A |
| Voltage | 12 V |
| Battery and charging | |
| Chemistry | Lead-acid (AGM) |
| Build | |
| Flashlight | No |
| Air compressor | No |
| Weight | 18 lb |
| Warranty | 1 year |
Alternatives in this engine size
Lokithor JA3000 Pro
#10 in Trucks and V8sFull review
For drivers of trucks and large SUVs who want a jump starter and tire inflator in one box. The LiFePO4 battery should outlast ordinary lithium packs.
Amazon $169.95$169.95
DeWalt DXAEJ14
#12 in Trucks and V8sFull review
For a garage or shop that wants a rugged booster with a tire inflator and doesn’t mind the weight. Most drivers are better served by a lighter lithium pack that holds its charge longer.
Amazon $169 Farm & Fleet $149.99$149.99
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