Antigravity XP-20-HD Micro-Start

Last updated: October 22, 2026

Antigravity XP-20-HD Micro-Start
3.7/5#4 of 5 in heavy duty jump starters
3.7

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
Check price at Amazon$249.99

Price checked October 22, 2026. As an Amazon Associate we earn from qualifying purchases.

Pros
  • 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
Cons
  • 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 numberAG-XP-20-HD
Starting
Rated engines10 L gas, 8 L diesel
Peak amps (maker)4,650 A
Cranking amps930 A
Voltage12 V
Manual overrideYes
Lowest operating temperature-4 °F
Battery and charging
ChemistryLithium-ion
Capacity88.8 Wh
Capacity (mAh)24,000 mAh
USB-C input100 W
Recharge time1 hours
USB outputsUSB-C 100 W, USB-A QC3.0 18 W, USB-A 12 W
Build
FlashlightYes
Air compressorNo
Dimensions9.4 x 4 x 1.9 in
Weight2.1 lb
Warranty1.5 years

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