?Warm Tip?: We suggest you use Lithium charger, with an automatic SLA charger may not be fully charged; And if you find the battery Volt is 0v, just activate the battery - Use another battery parallel with the 0v battery for 3-5s. ?Service and Warranty?: We offer a 1 year warranty for the our 12v 7ah lithium-ion batteries. If you have any question for our product, contact us: Please click the "Ask a question" on our storefront or in "YOUR ORDER" options click the "contact seller". ?APPLICATION FIELDS?: Perfect for small UPS, kids ride on car, fish finder, Solar/ Wind energy storage system, alarm system, emergency lighting system, gate opener power, automatic garage door, and camping. ?100% SAFE?: HWE 12v 7ah LiFePO4 battery has passed the testing and certification of the UN certified inspectors. They would not fire or explode in short-circuit, acupuncture, drop, thermal shock below 130°C, and overcharge test below 30V. ?100% PROTECTION?: HWE 12-volt batteries built-in battery management system(BMS) technology which can protect it from overcharge, deep discharge, overload, short circuit, low self-discharge rate, and for more performance and longer life. ?10 YEARS LIFETIME? HWE 12v lithium battery was the ultimate in deep-cycle battery technology delivering unrivaled performance and battery life. HWE 12v LiFePO4 Battery can provide 4000 cycles of life, the use time can be 10 years.Unit Count: 1 Count. Recommended Uses For Product: SECURITY SYSTEM, RV parts. Battery Cell Composition: Lithium. Brand: HWE. Number of Batteries: 1 Lithium Ion batteries required. Date First Available: May 21, 2021. Best Sellers Rank: #62,384 in Health & Household. Customer Reviews: 4.2 out of 5 stars 425 ratings 4.2 out of 5 stars. : B095K38M6C. Voltage: ?12 Volts. Amperage: ?7 Amps. Manufacturer Part Number: ?HW-4F7. Batteries: ?1 Lithium Ion batteries required. Item model number: ?HW-4F7. Product Dimensions: ?5.94 x 2.56 x 3.7 inches. Item Weight: ?1.87 pounds. Brand: ?HWE. Manufacturer: ?Howell Energy Co.,LTD.