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
3.4/5
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.
- 4 L gasEngines
- 24 WhBattery
- YesOverride
- 2.1 lbWeight
- 1 yearWarranty
Check price at Amazon$79.95
Price checked October 30, 2026. As an Amazon Associate we earn from qualifying purchases.
Pros
- Small and light enough for a glove box or motorcycle tank bag
- Can force a jump on a completely dead battery with manual override
- Sealed against rain and dust
- Among the cheapest name-brand packs
Cons
- Only for small engines: rated to 4.0 L gas and not recommended for diesels
- Slow to recharge over a basic 10 W USB-C input
- Small 24 Wh battery gives little to spare for charging phones
- One-year warranty is short
The NOCO Boost family
Every NOCO Boost model we rank, smallest first. Ratings compare each against its own engine size.
| Model | Engines | Rating | Price |
|---|---|---|---|
| NOCO Boost GB20 (this one) | 4 L gas | 3.4/5 | $79.95 |
| NOCO Boost Plus GB40 | 6 L gas, 3 L diesel | 3.3/5 | $99.95 |
| NOCO Boost GB50 | 7 L gas, 4.5 L diesel | 2.6/5 | $149.95 |
| NOCO Boost GB70 | 8 L gas, 6 L diesel | 3.6/5 | $139.99 |
| NOCO Boost Pro GB150 | 9 L gas, 7 L diesel | 2.9/5 | $299.95 |
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 | GB20 |
|---|---|
| Starting | |
| Rated engines | 4 L gas |
| Peak amps (maker) | 500 A |
| Voltage | 12 V |
| Manual override | Yes |
| Lowest operating temperature | -4 °F |
| Battery and charging | |
| Chemistry | Lithium-ion |
| Capacity | 24 Wh |
| USB-C input | 10.5 W |
| Recharge time | 3 hours |
| USB outputs | USB 10.5 W |
| Build | |
| Flashlight | Yes |
| Air compressor | No |
| Water resistance | IP65 |
| Dimensions | 7.72 x 3.16 x 1.71 in |
| Weight | 2.1 lb |
| Warranty | 1 year |
| Released | 2016-12 |
Alternatives in this engine size
TOPDON JS1500
#6 in Cars and SUVsFull review
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.
Amazon $69.95$69.95
Weego 44s
#8 in Cars and SUVsFull review
A pocket-size pack for cars, crossovers and small SUVs up to 7 liters, for drivers who want something that disappears into the glove box. Its two-year warranty beats most packs this small.
Amazon $99.99$99.99
Compare
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