Weego 120
#4 in Heavy dutyFull review
A professional-grade pack for fleets, farms and big diesels that replaces a heavy lead-acid jump box. Overkill for a family car.
Amazon $224.99$224.99
The Weego 120 is the better jump starter overall, rated 4.1 to 4.0. The Weego 120 leads on capacity and warranty. The GOOLOO A9 Ultra costs $25.01 less ($199.98 vs $224.99).
GOOLOO A9 Ultra
#11 in Heavy dutyFull review
GOOLOO’s top combined jump starter and inflator, rated for any gas engine and big diesels, with fast 100 W USB-C charging. Worth it if you want one heavy-duty tool for trucks, RVs and travel.
Amazon $199.98$199.98
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 Weego 120 for capacity (118.4 Wh battery vs 99.9 Wh battery) and warranty (2-year warranty vs 1.5-year warranty).
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 | Weego 120 | GOOLOO A9 Ultra |
|---|---|---|
| Overall rating | 4.1/5 | 4.0/5 |
| Value 40% | 64 $224.99 for its size | 71 $199.98 for its size |
| Features 35% | 82 manual override, rated to -4 °F, USB-C charging, IP65 | 80 manual override, rated to -4 °F, USB-C charging |
| Capacity 15% | 98 118.4 Wh battery | 75 99.9 Wh battery |
| Warranty 10% | 50 2-year warranty | 25 1.5-year warranty |
Specifications
| Weego 120 | GOOLOO A9 Ultra | |
|---|---|---|
| Starting | ||
| Rated engines | all gas, 15 L diesel | all gas, 12 L diesel |
| Peak amps (maker) | 5,000 A | 6,000 A |
| Cranking amps | 1,200 A | 480 A |
| Voltage | 12 V | 12 V |
| Manual override | Yes | Yes |
| Lowest operating temperature | -4 °F | -4 °F |
| Battery and charging | ||
| Chemistry | Lithium-ion | Lithium-ion |
| Capacity | 118.4 Wh | 99.9 Wh |
| Capacity (mAh) | - | 27,000 mAh |
| USB-C input | 18 W | 100 W |
| Recharge time | 6 hours | 1.5 hours |
| USB outputs | USB-A 18 W, USB-A 10.5 W | USB-C 100 W, USB-A 5 V/2.4 A |
| Build | ||
| Flashlight | Yes | Yes |
| Air compressor | No | Yes |
| Water resistance | IP65 | - |
| Dimensions | 10 x 7 x 4 in | 11.4 x 6.49 x 3.18 in |
| Weight | 5.5 lb | 4.8 lb |
| Warranty | 2 years | 1.5 years |
| Released | 2022-09 | 2026-09 |