Li Ion Polymer Battery 3.7V 2800mAh for Tablet PC / MID / PDA

Product Descriptionli ion polymer battery 3.7v 2800mah for Tablet PC / MID / PDA  NO.ItemsSpecifications1batteries 3.7V 2800mah lipo battery2Charge voltage4.2V 3Nominal voltage3.7V4Nominal capacity2800mAh     0.2C Discharge5Charge current Standard Charging:0.2CRapid charge:     1.0C6Standard Charging method0.5C CC(constant current)charge to 4.2V, then CV(constant voltage 4.2V)charge till charge current decline to ≤0.05C7Charging time Standard Charging:2.75hours(Ref.)Rapid charge:     2hours(Ref.)8Max.charge current0.5C9Max.discharge current1.0C10Discharge cut-off voltage2.5V0.25V(0.2C)11Operating temperatureCharging:  0 °C ~45 °CDischarging:0 °C ~45 °C12Storage temperature-10°C~ +45 °C13 DimensionLength:135±0.5mm (not including tabs)Width:43±0.5mmThickness:6±0.2mm14Drop TestThe cell is to be dropped from a height of meter twice onto concrete ground. No fire, no leakage15cycle time≥800times  Advantages: 1.High Energy Density. 2. High Output Voltage. 3. Excellent Security. 4. Long Cycle Life: More than 500 repeated charge/discharge cycles. 5. Fast Charge Capacity: Can be fully charged in 2 to 3 hours with a rated voltage of 4.2 per cell 6. Environmental-friendly: No Pb, Cd added 7.Dual IC chips, that can anti-shortcircuit, anti-overcharger, anti-overcurrent, anti-overload; 8.Injection Technology to make battery more stable; 9.With short-circuit production function, safe and reliable; 10.Factory mastered technology and competitive price; 11.CE/ROSH/SGS/MSDS/UN38.3/IEC61233 standard.   Application:1. Light: headlamp, emergency light, sloar flashlight, searchlight, lanten,bicycle light, LED light, high-end flashlight, high power flashlight, bright flashlight.2.Outdoor sports products: camping light, mountain bike light, solor emergency light, self-defense flashlight,3.Customer electronics: MPS, Tablet PC. laptop, Bluetooth earphone, power bank, portable DVD player,speaker, microphone, sound equipment, audio, Digital camera, vidican.4.Home appliances products: electric mop, electric vacuum cleaner, electric children toys, electric shoes,electric blanket.5.Medical devices6.Instruments and meters: water meter, gas meter.7.Electric transportation vehicles: electric bike, electric car, e-scooter, electric motor, electric trolley, electric cart.8.Power tools: electric drill, mower9.UPS, backup energy, storage energy.Knowledge of battery maintenance:1. Maintenance of new batteriesThe necessary visual inspection should be carried out before the new battery is installed, and it can be used directly after the inspection is free of defects. The battery is mostly half-full before leaving the factory, and the battery has been aging, and there is no need to perform special activation again. Before charging a new battery, ensure that the charger matches the battery to avoid battery damage.2. Instructions for fast chargingFor non-fast-charge series batteries, it is not recommended to use fast-charge devices to quickly charge the batteries. Fast charging will make the material transfer produced by the internal electrochemical reaction of the battery fail to keep up with the charge transfer, and the electrode material will produce large irreversible changes and lose capacity.3. Battery storageWhen the battery is not stored for a long time, the battery should be charged to 50%-70%, and the storage temperature should be below 25ºC.4. Battery chargingWhen using an electric vehicle charger to charge an electric vehicle, you should first connect the charger to the electric vehicle, and then connect the charger to the power supply. If the sequence is reversed, it will easily cause a short circuit. Keep ventilated when charging, and place the charger on non-flammable objects, as the flammable parts of the vehicle.5. Daily maintenanceDuring normal use, avoid overcharging and overdischarging the battery. During use, if the battery life drops rapidly, you should find professional maintenance personnel to inspect the vehicle and the battery in time, and you must not disassemble the battery for inspection. When used at low temperatures, the problem of reduced range may occur, which is a normal phenomenon. Care should be taken to avoid extending the range by increasing the charging time. When using it under high temperature in summer, it is strictly forbidden to expose the battery to the sun, charge it, and charge it directly without heat dissipation after use.Shipping and Payment:1. Shipping by UPS/FEDEX/DHL, by air, by sea and other special line for lithium batteries; 2. Accept T/T, PAYPAL, Western Union, Cash, or other available payment term. How to order?1. Please let us know what kind of model you need? 2. We make invoice for you. 3. Please check and confirm the invoice. 4. Once confirmed the order, please pay it soon. 5. After payment, all goods will be sent to you in 2 weeks. FAQ:If you can answer the following questions before place a order, it will be much helpful for us to make the correct products for you. 1. Will you use the batte