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Desire Power Electric Bicycle LiFePO4 battery ******0S*8S, with the detailed information as follows: Battery Pack Series *4V Cell Model ******0S*8S Typical Capacity (mAh) ****0 Thickness (mm) **0±2 Width (mm) *5±2 Length (mm) **5±5 Approx Weight (g) ***0 Impedance (mΩ) *8 Continuous Discharge *0C Burst Discharge (3s) *0C Typical Features : 1. Higher operating voltage of 3.2V and energy density: Lithium lron Phosphate battery delivers and maintains a stable operating voltage of over 3.2V until final discharge—three times as much voltage as a Ni-Cd ot Ni-Mh battery ***** takes just 1/3 the number of polymer lithium ion batteries to provide the equivalent amount of voltage form Ni-Cd or Ni-MH batteries, so portable devices can be made much smaller and ligher。 2. Higher discharge rate for more powerful devices: Lithium lron Phosphate batteries are capable of outstanding rates of discharge(up to *0C rate or more)sufficient to power a hobby planes and helicopters, a power tool’s motor and other devices. 3. Stable discharge under various temperatures environmental conditions: Lithium lron Phosphate batteries provide stable discharge within a wide range of temperatures, form **0℃ to *0℃. 4. Superior storage characteristics and convenience including minimal self-discharge: Lithium lron Phosphate batteries limit self-discharge to less than 5% of the original capacity per month when battries are stored at *0℃. 5. Long Cycle Life: Lithium lron Phosphate batteries last over ***0 repeated charges and discharges, as well as offering outstanding economy. 6. No Memory Effect: Lithium lron Phosphate batteries has no memory effect, seen in Ni-Cd, NI-MH, causes charging capacity to be reduced by repeared charing and discharging to in sufficient levels, therefore. 7. High safety: Greater resistance to overcharging.High thermal stability.