GOOLOO A3
A low-cost combined jump starter and tire inflator that handles most cars and gas pickups. A sensible single roadside tool for most drivers.
Amazon $69.96$69.96
The GOOLOO A3 is the better jump starter overall, rated 3.9 to 3.4. The GOOLOO A3 leads on features and warranty.
Stanley LJ12FC
#15 in Trucks and V8sFull review
For drivers who want an inexpensive lithium pack to keep in the car for an occasional flat battery. Buyers who need to revive a fully dead battery should pick a model with an override mode.
Amazon $69.97$69.97
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 GOOLOO A3 for features (manual override, rated to -4 °F, USB-C charging vs rated to -4 °F, USB-C charging; no override for a flat battery) and warranty (1.5-year warranty vs 1-year warranty).
Scores side by side
Each factor is scored 0-100 against the same fixed reference points for every trucks and v8s jump starter; a clear win is highlighted. How we rank explains each one.
| Factor weight | GOOLOO A3 | Stanley LJ12FC |
|---|---|---|
| Overall rating | 3.9/5 | 3.4/5 |
| Value 40% | 95 $69.96 for its size | 95 $69.97 for its size |
| Features 35% | 67 manual override, rated to -4 °F, USB-C charging | 27 rated to -4 °F, USB-C charging; no override for a flat battery |
| Capacity 15% | 24 44.4 Wh battery | 50 capacity not published in Wh (neutral score used) |
| Warranty 10% | 25 1.5-year warranty | 0 1-year warranty |
Specifications
| GOOLOO A3 | Stanley LJ12FC | |
|---|---|---|
| Starting | ||
| Rated engines | 9 L gas, 6.5 L diesel | Most cars and trucks up to V8 (no liter rating) |
| Peak amps (maker) | 3,000 A | 1,200 A |
| Cranking amps | 400 A | - |
| Voltage | 12 V | 12 V |
| Manual override | Yes | No |
| Lowest operating temperature | -4 °F | -4 °F |
| Battery and charging | ||
| Chemistry | Lithium-ion | Lithium-ion |
| Capacity | 44.4 Wh | - |
| USB-C input | 10 W | 10 W |
| Recharge time | - | 6 hours |
| USB outputs | USB-C 5 V/2 A, USB-A 5 V/2.4 A | USB-C 15 W, USB-A 15 W |
| Build | ||
| Flashlight | Yes | Yes |
| Air compressor | Yes | No |
| Dimensions | 8.2 x 5.2 x 2.3 in | 6.1 x 2.7 x 1.6 in |
| Weight | 2.2 lb | 1 lb |
| Warranty | 1.5 years | 1 year |
| Released | 2025-04 | 2025-09 |