Single battery model: ER14335+1520(Disposable Lithium + super capacitor) Single battery voltage: 3.6V Single battery capacity: 1650mAh1. 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.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.Battery voltage range after combination: 3.0V~4.2V Battery pack power:11.88W Battery pack size：15*30*49mm Charge and discharge times: >500 times Wire model: UL1007 24AWG Weight: 36g Nominal voltage after battery pack combination: 3.6V Battery combination mode: 1 string 2 parallels Battery capacity after combination: 3.3ah Operating temperature range: -55℃~+85℃ Storage life: 10 years Product features: low power consumption, high and low temperature, long service life, large instantaneous current1. 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 voltage1.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.