Item

General Parameter

Remark

1

Rated Capacity

21.0Ah

Standard discharge(0.5C)after standard charge(0.5C)

2

Minimal Rated Capacity

19.6Ah

3

Nominal Voltage

12.8V

4

Cycle Life

Higher than 60% of the Initial Capacity of the Cells

Charge: CC at 0.5C to 14.6V, then CV till current to 0.05C,Rest: 30min,Discharge: 0.5C to 10.0V,Temperature:20±5°C,

2000cycles

5

Discharge cut-off voltage

8.0V

10.0V(recommended)

6

Charging cut-off voltage

15.6V

14.6V(recommended)

7

Cell and assembly method

IFR18650EC-1.5AH

4S14P

8

Packing material

12V17AH SLA battery housing

9

Standard charge

0.5C constant current(CC) charge to 14.6V,then constant voltage (CC)14.6V charge till charge current decline to ≤0.05C

Charge time : Approx 3.5h

10

Standard discharge

Constant current 0.5C, Cut-off voltage 10.0V

11

Maximum Charge Current

3A

12

Continuous Discharge Current

25A

Over current 40±5A 9mS

13

Operation Temperature Range

Charge: 0~45°C

60±25%R.H.

Discharge: -10~50°C

14

Storage Temperature Range

Less than 1 year : 0~25°C

60±25%R.H.

at the shipment state

Less than 3 months:-5~35°C

15

Weight

Approx: 2.75Kg

16

Pack Dimension

High:166mm

Width: 76mm

Length: 181mm