A cheap, high-rated pack for cars and V8 trucks with IP65 sealing. A budget pick, but confirm it handles a fully dead battery before relying on it.
Amazon $44.79
For owners of big gas trucks and diesel pickups who want a compact pack that recharges fast over USB-C. Cheaper packs cover smaller engines just as well.
- 10 L gas, 8 L dieselEngines
- 88.8 WhBattery
- YesOverride
- 2.1 lbWeight
- 1.5 yearsWarranty
Price checked October 22, 2026. As an Amazon Associate we earn from qualifying purchases.
- Starts gas engines up to 10 L and diesels up to 8 L, yet fits in a glove box
- Recharges in about an hour from a 100 W USB-C charger, and can charge a laptop
- Bypass button jumps a completely dead battery
- Large 89 Wh battery for repeated jumps and device charging
- Won’t jump when the pack itself is below freezing, so it needs warming in winter
- Costs more than similarly rated packs from Lokithor or Hulkman
- No stated water resistance
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 | AG-XP-20-HD |
|---|---|
| Starting | |
| Rated engines | 10 L gas, 8 L diesel |
| Peak amps (maker) | 4,650 A |
| Cranking amps | 930 A |
| Voltage | 12 V |
| Manual override | Yes |
| Lowest operating temperature | -4 °F |
| Battery and charging | |
| Chemistry | Lithium-ion |
| Capacity | 88.8 Wh |
| Capacity (mAh) | 24,000 mAh |
| USB-C input | 100 W |
| Recharge time | 1 hours |
| USB outputs | USB-C 100 W, USB-A QC3.0 18 W, USB-A 12 W |
| Build | |
| Flashlight | Yes |
| Air compressor | No |
| Dimensions | 9.4 x 4 x 1.9 in |
| Weight | 2.1 lb |
| Warranty | 1.5 years |
Alternatives in this engine size
For drivers in very cold places, or who leave a jump starter in the car for years and forget to charge it. Most people get more for their money from a lithium pack.
Amazon $199.99For heavy-duty trucks, diesels, boats and fleets that need the most starting power in a lithium pack. Most car owners will be well served by something smaller and cheaper.
Amazon $369.95Compare
Compare the Antigravity XP-20-HD Micro-Start with any other jump starter →
More from Antigravity Batteries: every Antigravity Batteries product ranked.