48V 20ah Li-ion Battery, High Energy Density Battery, Lithium Battery manufacturer / supplier in China, offering High Energy Density 48V 20ah Li-ion Battery, Heavy Duty Tow Trucks Electric Tractor Truck Head for Sale, 40FT Long Range Battery Dricve Electric Bus From Opitmumnano China and so on.
|Purchase Qty. / Reference FOB Price|
|1-999 Pieces||US $800|
|1,000+ Pieces||US $200|
|Production Capacity:||50, 000 PCS/Week|
|Transport Package:||PVC Film, Epoxy Board, Plastic Shell, Iron Box|
|Payment Terms:||T/T, Western Union|
|Usage:||Car, Bus, UPS, Electric Power, Lighting, Electric Bicycle, Boat|
|Discharge Rate:||High Discharge Rate|
|Electrolyte:||Lithium Iron Phosphote|
Casing material for single cell
steel case for single cells
Standard charge and discharge current
Max discharge current
4 Paralled 16 Serial
Impedance(Max, at 1000Hz.)
58.4V cut off
0.05C cut off
58.4V cut off
Discharge performance in normal temperature
Discharge capacity /standard capacity×100%
Charge-discharge curve should be smooth
Charge with 0.2C5A standard charge in the condition of temperature 25°C±5°C,relative humidity 45%~80%(if there is no especial statement,the charging way is same as this), rest for 10min,separated discharge with 0.2C5A,1C5A to cut-off voltage 40.0V,cycles for three times,One cycle capacity arrive standard, that's to say it is qualified.(The below as the same);
Charging keep ability in normal temperature
Remain capacity≥standard capacity *95%
After standard charged,rest for 28 days,discharge with 0.2C5A to 40.0V,test the Remain capacity.
Capacity≥ Standard capacity *80%
After 0.2C standard charged ,discharge with 0.2C5A to 40.0V.rest for10min,cycles for 2000 times.
Capacity can be kept ≥80% Storage for 12 months.
After standard charged,rest it in 25°C±5°C for 12 months. Then discharge with 0.2C5A to 40.0V, testing the battery capacity. 0.2C/0.2C test the recover capacity, cycle for 3 times ,One cycle capacity arrive standard, that's to say it is qualified.
Welcome to OPTIMUM BATTERY CO.,LTD for Inquiry and Purchase!