The GOOLOO A9 Ultra and the Weego 70 are evenly matched, rated 4.0 and 4.0. The GOOLOO A9 Ultra leads on capacity. The Weego 70 wins on warranty. The Weego 70 costs $25 less ($154.99 vs $179.99).
Prices were last checked November 4, 2026. Product prices and availability are accurate as of that date and are subject to change; the price and availability shown on Amazon or the retailer's site at the time of purchase apply. As an Amazon Associate we earn from qualifying purchases.
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 $179.99For owners of big gas trucks, SUVs and boats who want a jump pack rated for any gas engine with a bypass for dead-flat batteries. Look elsewhere if you need fast USB-C charging.
Amazon $154.99Each 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 | GOOLOO A9 Ultra | Weego 70 |
|---|---|---|
| Overall rating | 4.0/5 | 4.0/5 |
| Value 40% | 77 $179.99 for its size | 84 $154.99 for its size |
| Features 35% | 80 manual override, rated to -4 °F, USB-C charging | 82 manual override, rated to -4 °F, USB-C charging, IP65 |
| Capacity 15% | 75 99.9 Wh battery | 24 59.2 Wh battery |
| Warranty 10% | 25 1.5-year warranty | 50 2-year warranty |
| GOOLOO A9 Ultra | Weego 70 | |
|---|---|---|
| Starting | ||
| Rated engines | all gas, 12 L diesel | all gas, 5 L diesel |
| Peak amps (maker) | 6,000 A | 2,500 A |
| Cranking amps | 480 A | 700 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 | 99.9 Wh | 59.2 Wh |
| Capacity (mAh) | 27,000 mAh | - |
| USB-C input | 100 W | 18 W |
| Recharge time | 1.5 hours | 3.5 hours |
| USB outputs | USB-C 100 W, USB-A 5 V/2.4 A | USB-A 18 W |
| Build | ||
| Flashlight | Yes | Yes |
| Air compressor | Yes | No |
| Water resistance | - | IP65 |
| Dimensions | 11.4 x 6.49 x 3.18 in | 9.5 x 3.5 x 1.75 in |
| Weight | 4.8 lb | 3.5 lb |
| Warranty | 1.5 years | 2 years |
| Released | 2026-09 | - |
