Optimate TM-291 5 Amp HIGH POWER LiFePO4 LFP 12 Volt Lithium Battery Charger Maintainer RECOVERY SYSTEM Tender - Automatic - CAPABLE OF RECOVERING LITHIUM BATTERIES - Antigravity Batteries, Shorai, Ballistic This charger is over 6 times faster than the Optimate TM-471!! ***THIS CHARGER IS ALSO CAPABLE OF RECOVERING LOW VOLTAGE LITHIUM ION BATTERIES THAT HAVE NOT BEEN DAMAGED BEYOND REPAIR*** A HIGH amp FULLY AUTOMATIC charger/maintainer for ALL 12v Antigravity Batteries as well as other brands of lithium batteries. Includes all safety features such as reverse polarity protection, no spark connection; approved to UL and CSA safety standards for automatic battery chargers. Recommended for Lifepo4 lithium battery brands. Weatherproof and lightweight weighs in at 1 lb. 3 Year Warranty