NOCO Boost X GBX155
#15 in Heavy dutyFull review
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 $369.95$369.95
The 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 Schumacher DSR166 wins on value. The Schumacher DSR166 costs $32.68 less ($337.27 vs $369.95).
Schumacher DSR166
#17 in Heavy dutyFull review
For truck shops, fleets and farms that need to start 24 V diesel equipment as well as 12 V vehicles. Anyone with only 12 V vehicles should buy a lighter, cheaper booster.
Amazon $337.27$337.27
Prices 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).
- Choose the Schumacher DSR166 for value ($337.27 for its size vs $369.95 for its size).
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 | Schumacher DSR166 |
|---|---|---|
| Overall rating | 3.3/5 | 2.6/5 |
| Value 40% | 23 $369.95 for its size | 32 $337.27 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 | Schumacher DSR166 | |
|---|---|---|
| Starting | ||
| Rated engines | 10 L gas, 8 L diesel | Cars, trucks, SUVs and 24 V semi-trucks (no liter rating) |
| Peak amps (maker) | 4,250 A | 4,400 A |
| Cranking amps | - | 750 A |
| Cold cranking amps | - | 525 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 | 48 hours |
| USB outputs | USB-C 60 W, USB-A 10 W | USB-A 2.1 A, 12 V DC outlet |
| 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 | 41.2 lb |
| Warranty | 1 year | 1 year |
| Released | 2021-11 | 2024-06 |