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 4.0 to 3.7. The GOOLOO A3 leads on value and warranty. The TOPDON JS3000 wins on features. The GOOLOO A3 costs $70.03 less ($69.96 vs $139.99).
TOPDON JS3000
A truck-capable pack for gas engines up to 9 liters that doubles as a 45 W USB-C laptop power bank. Worth it if you want TOPDON quality and a carry case.
Amazon $139.99$139.99
Prices were last checked October 22, 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 value ($69.96 for its size vs $139.99 for its size) and warranty (1.5-year warranty vs 1-year warranty).
- Choose the TOPDON JS3000 for features (manual override, rated to -4 °F, USB-C charging, IP54 vs manual override, rated to -4 °F).
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 | TOPDON JS3000 |
|---|---|---|
| Overall rating | 4.0/5 | 3.7/5 |
| Value 40% | 95 $69.96 for its size | 58 $139.99 for its size |
| Features 35% | 70 manual override, rated to -4 °F | 90 manual override, rated to -4 °F, USB-C charging, IP54 |
| Capacity 15% | 50 capacity not published in Wh (neutral score used) | 50 capacity not published in Wh (neutral score used) |
| Warranty 10% | 25 1.5-year warranty | 0 1-year warranty |
Specifications
| GOOLOO A3 | TOPDON JS3000 | |
|---|---|---|
| Starting | ||
| Rated engines | 9 L gas, 6.5 L diesel | 9 L gas, 7 L diesel |
| Peak amps (maker) | 3,000 A | 3,000 A |
| Cranking amps | - | 750 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 (mAh) | - | 24,000 mAh |
| USB-C input | - | 45 W |
| USB outputs | USB-C 5 V/2 A, USB-A 5 V/2.4 A | USB-C 45 W, USB-A QC 18 W, USB-A 5 V/2 A, 16.8 V DC 10 A |
| Build | ||
| Flashlight | Yes | Yes |
| Air compressor | Yes | No |
| Water resistance | - | IP54 |
| Dimensions | 5.87 x 4.96 x 2.3 in | 11.18 x 5.79 x 4.72 in |
| Warranty | 1.5 years | 1 year |