Antigravity XP-20-HD Micro-Start Jump Starter

Antigravity XP-20-HD Micro-Start Jump Starter A dead battery at the wrong time is one of those problems that ruins a whole day. Cold morning, remote trail, empty parking lot — it doesn't matter where it happens. The Antigravity XP-20-HD is the kind of thing you keep in your bag, your truck, or your kit box specifically so that situation never turns into a crisis.This is a compact lithium jump starter that delivers 930 amps of starting current and a peak of 4,650 amps. That's enough to handle diesel engines up to 8 liters and gasoline engines up to 10 liters — so whether you're dealing with a dead battery on a truck, a UTV, a boat, a generator, or a powersports vehicle, one unit covers all of it.What makes the XP-20-HD stand out from most jump starters on the market is the size. It's about half the size of leading competitor jump starters — easier to store in a gear bag, a glove box, or a saddle bag without taking up space you don't have. It's also a full personal power supply, not just a jump starter. The USB-C port delivers bidirectional 100W Power Delivery — fast enough to charge laptops, tablets, and phones at the same speed as a wall adapter.The capacity sits at 24,000mAh (88.8Wh), and using the included 100W cigarette lighter charger, the XP-20-HD fully recharges in about one hour — faster than anything else in its class.SpecsificationStarting current: 930A | Peak: 4,650ACapacity: 24,000mAh / 88.8WhDiesel engines: up to 8 litersGas engines: up to 10 litersDimensions: 9.5 x 4 x 2 inchesRecharge time: approximately 1 hour (with included 100W charger)LED flashlight: 240 lumens, 3 modesCharging Ports The XP-20-HD includes four output ports: a USB-C PD 100W input/output port, a USB-A QC3.0 output port, a standard USB-A output port, and a DC 15V/10A output port for 12V devices. That covers laptops, phones, tablets, and 12V accessories from one unit without needing an adapter or a separate power bank.Display and Safety The large digital display screen shows the state of charge, watts of energy going in or out, and easy-to-read icons that tell you whether you have an incorrect connection or are ready to jump start. No guessing, no fumbling in the dark trying to figure out if it's hooked up right.Safety protections including reverse polarity and reverse charge protection are built into the unit itself rather than the clamps — which means the protections are always active regardless of which clamps you're using. Additional built-in protections cover overcharge and over-discharge.What's in the BoxAntigravity XP-20-HD Micro-Start unitHeavy-duty jumper clampsZippered carry caseUSB-C to USB-C cableUSB-A to USB-C cableCigarette lighter adapterSC100W mobile/car chargerInstruction manualCompatibility The XP-20-HD is a universal fit unit — it works with any 12V vehicle battery. Cars, trucks, UTVs, ATVs, boats, snowmobiles, generators, and most powersports vehicles are all fair game.One honest note worth mentioning: the XP-20-HD's clamps are on the larger side, making this unit better suited to trucks, cars, and larger powersports vehicles rather than motorcycle batteries specifically. If motorcycle jump starting is your primary use case, Antigravity's smaller Micro-Start units with compact clamps are a more practical fit for tight battery compartments.Installation No installation required. Charge it up with the included car charger or a 100W USB-C wall adapter (sold separately), and it's ready to go.Keep it charged. Lithium units hold their charge well over time, but a jump starter that hasn't been topped up in six months isn't going to perform at full capacity when you actually need it. A quick recharge every few months keeps it ready.When jump starting, connect the clamps with the engine off, confirm the display shows a clean connection, then attempt the start. The unit's built-in reverse polarity protection will alert you if the clamps are on the wrong terminals before anything happens.Who This Is For Anyone who owns a vehicle — especially riders, overlanders, and anyone who spends time in remote areas where roadside assistance isn't a quick option. If you drive a diesel truck, own a UTV, or run multiple vehicles that don't get started regularly, the XP-20-HD is worth keeping on hand.It also pulls double duty as a travel power bank for long haul trips, camp setups, or any situation where you need to charge a laptop or phone without access to a wall outlet.Key Benefits 930A starting current, 4,650A peak — Enough power to turn over diesel and large gas engines. Not a light-duty unit dressed up with big numbers.Compact for its class — Half the size of comparable competitor units. Fits in a gear bag or center console without dedicating a shelf to it.USB-C PD 100W charging — Fast enough to charge a laptop at full speed. Not a slow trickle charge through a basic USB port.One-hour recharge — With the included 100W car charger, it goes from empty to full faster than any comparable unit on the market.240-lumen LED flashlight — Three beam modes: steady, strobe, and SOS beacon. Practical for roadside use after dark.Safety protections built into the unit — Reverse polarity, reverse charge, overcharge, and over-discharge protection all built in, not reliant on the clamps.UL listed battery cells — Not a no-name lithium cell. Quality matters in a device that delivers thousands of peak amps.FAQs Can this jump start a motorcycle?Technically yes, but the XP-20-HD's clamps are larger and the unit itself is bulkier than Antigravity's smaller Micro-Start models. For dedicated motorcycle use, a compact Micro-Start like the XP-10 or XP-1 with small clamps is a better fit for tight battery compartments. The XP-20-HD is better suited to trucks, cars, UTVs, and larger vehicles.How do I recharge the XP-20-HD?The included 100W cigarette lighter car charger recharges it in about one hour. You can also use a USB-C 100W wall adapter (sold separately) for home charging. Standard phone chargers will work too, but expect significantly longer charge times.Does it hold its charge when stored?Lithium batteries hold a charge much better than lead-acid over time. That said, a unit that sits for months without being topped up will lose some capacity. Recharge every two to three months during storage to keep it ready.What's the difference between the XP-20 and the XP-20-HD?Both share the same jump start capability and size. The HD version offers slightly more capacity and power output for device charging — specifically the 15V/10A DC output port and higher overall charging capacity. If you plan to use it heavily as a power supply beyond just jump starting, the HD is the better choice.Is this covered by a warranty?Yes. Antigravity Batteries backs their products with a manufacturer's warranty. For specific warranty terms and duration, check Antigravity's official warranty documentation or contact their support directly. Be aware that counterfeit units are sold online — purchasing from an authorized dealer like WyldPerformance.com ensures your unit is covered.Can it charge a laptop?Yes. The USB-C PD 100W port charges Apple and Windows laptops at full speed — the same as a wall adapter. It also handles tablets, phones, and any USB-C device.