【Superior Performance】: BOTKU 12.8V 30Ah LiFePO4 battery are made of brand new A-grade batteries, featuring high energy density, long cycle life, good safety performance and no memory effect.(Note: the 12v 30ah LiFePO4 battery can't be used as starting battery) 【Safety Protection】: The battery has a built-in BMS protection device that prevents overcharging, over-discharging, over-current and short-circuit, with a very low self-discharge rate. (Not motorcycle starting battery with CCA parameters) 【Long cycle time】: 12 Volt 30Ah lithium ion battery 3000+ cycles no problem, safer and more environmentally friendly than lead-acid batteries. 【Widely Used】: Widely used in most fields, solar energy, kid Scooter, Power Wheel chair,camper, outdoor camping, kids toy cars, fish detectors, emergency response system, emergency lighting, off-grid and so on.（Not compatible with: lawn mowers, jump starter, Motorcycle Starter, Generator, Jet Ski, Polaris, etc） 【Charging】:Can be connected in series or parallel, up to 4 identical batteries, 10A fast charging, support charger charging, solar panel charging and other charging methods. 【After-Sales Service】: 12 months warranty, any questions you can always click "Ask a question" in our storefront or click "Contact seller" in "Your order" option 12v 30ah lifepo4 battery