For heavy-duty trucks, diesels, boats and fleets that need the most starting power in a lithium pack. Most car owners will be well served by something smaller and cheaper.
Amazon $369.95The NOCO Boost X GBX155 is the better jump starter overall, rated 3.3 to 2.6. The NOCO Boost X GBX155 leads on features. The Clore Jump-N-Carry JNC1224 costs $20.88 less ($349.07 vs $369.95).
For fleets, farms and heavy-equipment shops that start both 12 V and 24 V machines. It is far too heavy and costly for a personal vehicle.
Amazon $349.07Prices were last checked October 30, 2026 and are subject to change; the price and availability shown by the retailer at the time of purchase apply.
Which should you buy?
- Choose the NOCO Boost X GBX155 for features (manual override, rated to -4 °F, USB-C charging, IP65 vs basic).
Scores side by side
Each factor is scored 0-100 against the same fixed reference points for every heavy duty jump starter; a clear win is highlighted. How we rank explains each one.
| Factor weight | NOCO Boost X GBX155 | Clore Jump-N-Carry JNC1224 |
|---|---|---|
| Overall rating | 3.3/5 | 2.6/5 |
| Value 40% | 23 $369.95 for its size | 29 $349.07 for its size |
| Features 35% | 90 manual override, rated to -4 °F, USB-C charging, IP65 | 35 basic |
| Capacity 15% | 74 99 Wh battery | 50 capacity not published in Wh (neutral score used) |
| Warranty 10% | 0 1-year warranty | 0 1-year warranty |
Specifications
| NOCO Boost X GBX155 | Clore Jump-N-Carry JNC1224 | |
|---|---|---|
| Starting | ||
| Rated engines | 10 L gas, 8 L diesel | Most cars, light trucks, watercraft and implements, plus 24 V systems (no liter rating) |
| Peak amps (maker) | 4,250 A | 3,400 A |
| Cranking amps | - | 850 A |
| Voltage | 12 V | 12/24 V |
| Manual override | Yes | - |
| Lowest operating temperature | -4 °F | - |
| Battery and charging | ||
| Chemistry | Lithium-ion | Lead-acid (AGM) |
| Capacity | 99 Wh | - |
| USB-C input | 60 W | - |
| Recharge time | 2.7 hours | - |
| USB outputs | USB-C 60 W, USB-A 10 W | - |
| Build | ||
| Flashlight | Yes | No |
| Air compressor | No | No |
| Water resistance | IP65 | - |
| Dimensions | 12.03 x 6.89 x 2.72 in | - |
| Weight | 5.8 lb | 40 lb |
| Warranty | 1 year | 1 year |
| Released | 2021-11 | - |
