AstroAI S8
#1 in Cars and SUVsFull review
A tiny, cheap starter for four- and six-cylinder cars. Fine as a glovebox backup, but not for trucks or V8s.
Amazon $42.19$42.19
3.8/5
For drivers of four- and six-cylinder cars who want a cheap glove box pack with an override for dead batteries. V8 and diesel owners need a bigger model such as the SL1674.
- 6 L gas, 3 L dieselEngines
- 23.7 WhBattery
- YesOverride
- 1.6 lbWeight
- 2 yearsWarranty
Check price at Amazon$51.29
Price checked October 30, 2026. As an Amazon Associate we earn from qualifying purchases.
Pros
- Override and Pre-Boost modes help with a completely flat battery
- Wireless pad charges a phone without a cable
- Recharges in 2 to 3 hours, quicker than most packs on a basic USB input
- Two-year warranty, longer than most rivals at this price
Cons
- Rated only for gas engines up to 6.0 L and diesels up to 3.0 L
- Small 23.68 Wh battery gives few phone recharges
- No published cold-weather rating
How it scores
The rating comes from 4 measured or published factors, each scored 0-100 against fixed reference points for its engine size. How we rank explains each one.
Specifications
| Model number | SL1672 |
|---|---|
| Starting | |
| Rated engines | 6 L gas, 3 L diesel |
| Peak amps (maker) | 1,000 A |
| Voltage | 12 V |
| Manual override | Yes |
| Battery and charging | |
| Chemistry | Lithium-ion |
| Capacity | 23.7 Wh |
| USB-C input | 15 W |
| Recharge time | 3 hours |
| USB outputs | USB-C 3 A, USB-A 3 A, 10 W wireless pad |
| Build | |
| Flashlight | Yes |
| Air compressor | No |
| Dimensions | 6.98 x 3.43 x 1.42 in |
| Weight | 1.6 lb |
| Warranty | 2 years |
| Released | 2024-09 |
Alternatives in this engine size
AstroAI S8 Air
#3 in Cars and SUVsFull review
A combined jump starter and tire inflator for small and mid-size cars. Good for drivers who want one compact roadside kit, not for trucks.
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Fanttik Potent T10
#4 in Cars and SUVsFull review
A stylish, very compact pack for cars and small SUVs up to 7 liters that doubles as a phone charger. Pick it for portability, not for big trucks or deep cold.
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