12V 5Ah LiFePO4 Rechargeable Battery with BMS,2000+ Cycles Backup Replacement Batteries for Garage Door Opener,Ideal for Liftmaster 8500w 485lm Battery Chamberlain 41a6357-1（2 Pack

12V 5Ah Lithium LiFePO4 Rechargeable Lithium 2000+ Deep Cycle Battery

• 【Built-in BMS System】The MESSULE 12V 5Ah LiFePO4 Battery features an intelligent Battery Management System (BMS) that provides overcharge, over-discharge, overcurrent, and overheat protection, ensuring safe and reliable operation.It’s a safe choice for any application.
• 【Wide Range of Applications】Suitable for access control systems, rolling doors, golf carts, emergency lighting, home security devices, small starter batteries, elevator backup power supplies, wheelchairs, firefighting equipment, and emergency power UPS devices.
• 【2000+ Cycles, 10-Year Lifespan – 5X Lead-Acid!】Messule 12V 5Ah deep-cycle LiFePO4 battery delivers 2000+ cycles at 80% DOD (vs. lead-acid’s 300-500 cycles), ensuring 10+ years of reliable power. With 1.43 lbs lightweight design (50% lighter than lead-acid). No maintenance—no watering, no acid leaks!
• 【Series/Parallel Expansion】Need 24V/36V/48V systems? Connect up to 4x 12V LiFePO4 batteries in series (max 48V) or parallel for 20Ah capacity. Supports 5A fast charging (compatible with LiFePO4 chargers, solar MPPT, generators).
• 【12-Month Warranty & Eco-Friendly】Backed by a 12-month warranty, messule LiFePO4 marine battery is ROHS/CE certified, non-toxic, and 100% maintenance-free. For best performance, use a LiFePO4 charger (SLA chargers may undercharge). Questions? Contact us via "Ask a Question" on our storefront!