Looking for an easy-change, worry-free Battery Charger? Take a look at this sleek HD Case, which includes a circulation fan to keep the charger cooler – for a longer life. 84V 3A Lithium Battery Charger for 72V Li-ion Ebike XT60 Connector – 110v Charger may be BLACK or BLUE Standard XT60 male connector output fits most battery packs. Please see pics of this connector if you are unsure what it is. Will require an adapter if your battery pack uses anything other than an XT60 female connector for charging. The HD aluminum case and circulation fan keeps the charger cooler and happier for a long charging life. Note: charging batteries can be dangerous. Never charge a battery pack any place where you wouldn’t mind starting a really intense fire. NEVER leave a charging battery unattended. NEVER charge a damage battery. NOT FOR USE on any battery pack that is not made with lithium ion cells. ONLY charge 20s packs that fully charge to 84v.