Key Specifications/Special Features: Discharge characteristics: 25 degrees Celsius Diy discharge performance discharge rate of 264A to 60S<1.4V/cell Storage capacity discharge rate of 25A to 1.80V/cell, capacity: 45.80Ah 20 hour discharge rate of 3.3A to 1.80V/cell, capacity: 69.00Ah 4C discharge rate of 264A to 5S/9.5V Temperature dependency of capacity (20 hour rate): 40 degrees Celsius, 102% 25 degrees Celsius, 100% 0 degrees Celsius, 85% -15 degrees Celsius, 65% Self discharge (25 degrees Celsius): Residual capacity after standing 3 months: 90% Residual capacity after standing 6 months: 81% Residual capacity after standing 12 months: 62% Charge method (constant voltage): Cycle: Initial current: 2.1A or smaller Control voltage: constant voltage 14.5 to 15V Standby: control voltage: 13.6 to 13.8V Battery life expectancy: Standby use: 3 to 5 years Cycle use (approx.): 100% depth of discharge 250 cycles 50% depth of discharge 550 cycles 30% depth of discharge 1200 cycles Others: Sealed construction: can be operated in any position without leakage Standard terminal: bolt disconnect Housing material: ABS resin Nominal voltage: 12V Nominal capacity: 66Ah Dimensions: (L x W x H) 293 x 174 x 188mm Total height: 188mm Weight: 14kg Primary Competitive Advantages: Price Quality Approvals International Approvals Main Export Markets: Worldwide Payment Details: Payment Terms: TT or L/C Minimum Order: 1 to 99 Pieces Delivery Details: FOB Port: Ningbo or Shanghai Lead Time: 20 days Safety/Quality Approvals: CE UL