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Lithium Battery Charger / Tender - Includes Tender Harness

Availability: Out of stock
Item #: DK-AG-471
Manufacturer: Antigravity

 DK Custom Lithium Battery Charger  Tender - Includes Tender Harness Jump Start Bike Power Supply Antigravity lithium Harley






  • Comes with Clamps and Harness for attaching to the battery so you can  charge while it is on the bike.
  • .8 AMP Charge Rate
  • Also works as a Battery "Tender" with its' automatic shut-off/power on Feature
  • LED Notification of Charging and Fully Charged
  • Short Circuit Protection
  • Battery Polarity Error Protection
  • Over Voltage Protection
  • Over Heat Protection
  • Voltage Precision +/- 1%


This unit is specifically designed for the Antigravity Lithium Nanophosphate Batteries, which as a rule do NOT need charging or a trickle charge.  But unique situations do arise that require charging.  Please read notes below.  


Does this battery require trickle charging?

In most cases no.  The battery is Maintenance Free and can hold a charge for up to a year PROVIDED  the bike/vehicle does not have a PARASITIC DRAIN/accessory taking the energy.*

IF your vehicles charging system is in good working order and you do not have any “parasitic drains” on the bike you should not have to charge this battery. 

If you do have longer layoffs, or you bike has accessories creating a drain, you can purchase one of our battery chargers specifically designed for the Lifepo4 technology.

Automatically brings the battery to full charge with 0.8A constant current and then switches to the battery-saving maintenance charge mode to keep the battery at 100% ready and at the same time provides power to the on board computer, display or antitheft alarm.  Remember, if you do not have any parasitic drains, you do NOT need a battery charger/tender.

Lead/Acid batteries require a battery tender, because they have a Natural Discharge… Our batteries do not have this effect.

*Things like an alarm system, anti-theft system, LoJack, etc. are a parasitic drain on the battery.  Depending on how much they drain, if you go several weeks, or more, without riding, we suggest using the Charger/Tender to keep the battery up.


How do I charge the battery?

The Antigravity Battery comes ready to install, and start the bike/vehicle. You should never need to charge it.  However, if you do accidentally drain it, we do offer a specific “smart”Lithium battery charger that is specifically for charging Lifepo4 Lithium batteries.  It will charge the battery to it’s intended peak voltage and will shut off when the battery is charged.

You should NOT use  a automobile or motorcycle charger that is specific to Lead/Acid batteries!  They can cause damage to the batteries because they charge in a different way than a specific Lifepo4 Lithium Charger. They often have a Desulfinate feature or over voltage “Quick Charging” feature… both of which will damage the Antigravity Battery. Lead Acid charges in many case will overcharge a lithium battery ending up in damage which is not covered under warranty.

"409” ignition wires provide continuous heat protection up to 600-degrees Fahrenheit

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