1. keep the battery out of the reach of children. If swallowed, seek medical attention immediately. 2. do not charge, disassemble, deform, short circuit, heat, set fire, etc. do not revert. Do not solder the battery directly. 3. do not mix new batteries, old batteries that have been used, or batteries of different brands or sizes. When discarding or storing the battery, insulate it with tape.1. Sufficient capacity: using domestic and foreign brand raw materials, sufficient capacity, low internal resistance, and stable voltage 2. Stable performance: long cycle life, high energy density, wide operating temperature range, stable discharge voltage Primary Competitive Advantages: Product Features;Prompt Delivery;Quality Approvals;Reputation;Service;Small Orders Accepted;Origin;Distributorships Offered;Experienced Staff;Product Performance;Green Product;Guarantee/Warranty;International Approvals;Military Specifications;Packaging;Price. Customize battery :what we offer for you? 1.Different cells brand,shape(cylinder,prismatic,pouch),discharge rate(1C,3C,5C,etc)，temperature tolerance to choose. 2.Assemble to be different voltage,capacity,shape and different size. 3.PCM/BMS:Customized size,charge/discharge cut off voltage,over current detect value,etc.NTC/TDS can be added. 4.Connector/Terminal:You name it,we find it. 5.Lead wire:Customized materials,gauge,length. 6.Other special request:need box,charger,special certification,etc.,Just tell us and save your searching time. 