Voltage:3.7VSize:6.8*30*30mmNominal Capacity:500mAh 550mAhItem:Li-ion polymer batteryModel: 
Standard voltage:3.7VStandard capacity:500mAh 550mAhStandard charging current:0.2CMax. charging current:1CStandard discharging current:1CMax. discharging current:2CCut -off voltage:4.2VCycle life:500-800 Times

Specification ItemLi-ion polymer battery

Standard voltage3.7VStandard capacity500mAh, 550mAhDimensions6.0*34*50mm (T*W*L)Standard charging current0.2CMax. charging current1CStandard discharging current1CMax. discharging current2CDischarge cut-off voltage3VCharge methodCC/CVOpen circuit voltage3.7VCut -off voltage4.2VCycle life500-800 TimesTemperatureCharging Temp: 0°C to 45°C.Discharging Temp:-20°C to 60°C.Storage: ≤1 month -10°C ~ 40°C ≤6 months 0°C ~ 35 °CStandard Environmental ConditionTemperature: 23±5°CHumidity: 45-75%RHAtmospheric Pressure: 86-106 KpaCertificationCE, RoHS, UL
Lithium-ion polymer batteries, polymer lithium ion or more commonly lithium polymer batteries(abbreviated Li-poly, Li-Pol, LiPo, LIP, PLI or LiP) are rechargeable (secondary cell) batteries. LiPo batteries are usually composed of several identical secondary cells in parallel to increase the discharge current capability, and are often available in series "packs" to increase the total available voltage.

Applications Six edge shaped Lithium-Polymer-Battery for Underwater VehiclesA compelling advantage of Li-poly cells is that specialized manufacturers can shape the battery almost however they please, which can be important in any kind of machines and tools with low space for the energy supply as for example mobile phone manufacturers constantly working on smaller, thinner, and lighter phones. 

Radio controlled equipment and Airsoft3-Cell LiPo battery for RC-models
Li-po batteries are gaining favor in the world of radio-controlled aircraft, radio-controlled cars and large scale model trains, where the advantages of lower weight and increased capacity and power delivery justify the price. A low voltage cutoff (LVC) setting maintains cell voltage greater than (typically) 3.2 V per cell under load. 
As of the beginning of 2013, Li-po products are widespread.  
Personal electronics
 
Electric vehicles
These batteries may also power the next generation of battery electric vehicles. The cost of an electric car of this type is currently significantly higher than of a petrol car, but it is likely that with increased production and technological advances, the cost of Li-poly batteries will go down.