Antigravity Batteries Micro-Start XP-20 Jump Starter

The Amazon product listing includes 'Specification Met: UL' in the specifications table. A direct UL Product iQ database lookup was not completed at time of scoring · the certification is documented as provisional. If UL listing is later confirmed via productiq.ul.com, the safety certification quality score and health score may improve.

The product listing specifies 2,000A peak output. Antigravity's own website lists 4,000A peak for the XP-20. This discrepancy is unresolved · neither figure has been independently bench-tested. The 800A starting/CCA rating is consistent across both sources. CarCareTruth uses the product listing figure (2,000A) as the reference; community evidence confirms reliable real-world starting for the claimed vehicle classes.

Yes. The XP-20 includes a USB-C port rated at 100W Power Delivery for both input and output. A 100W USB-C PD charger is included in the box. This makes the XP-20 capable of fast-charging laptops, tablets, and USB-C phones · not just emergency starting.

Antigravity rates the XP-20 for gas engines up to 10.0L and diesel engines up to 8.0L at 12V. Community evidence confirms starting a 5.2L V8 truck (Dodge Dakota) and diesel semi trucks in real-world field use. Cold-weather starting data is limited for this model specifically.

The Amazon listing for Antigravity Batteries Micro-Start XP-20 Jump Starter carries a California Prop 65 warning. California requires this warning on a very wide range of manufactured goods — including electronics with wiring, solder joints, or plastic/metal housings — whenever trace exposure to any of roughly 900 listed substances (commonly phthalates or heavy metals) is possible, regardless of whether the specific product poses a meaningful health risk. As a passive electronics product, Antigravity Batteries Micro-Start XP-20 Jump Starter has no Safety Data Sheet, so there's no chemistry breakdown to translate beyond that.