2.
Model range and specifications
Model
Nominal
Voltage
Rated
Capacity
Rated
Energy (Wh)
BT
Heater Serial
Parallel Box
size
Dimension
L*W*H (mm)
Weight
(Kg)
EV640
12.8 V
50 Ah
640
Y
Yes
2
4
D31
307 x 170 x 216
8.5
EV1250
12.8 V
96 Ah
1250
Y
Yes
2
4
L05
350 x 176 x 188
10.7
EV1300
12.8 V
100 Ah
1300
Y
Yes
2
4
D31
307 x 170 x 216
11.7
EV1600
12.8 V
125 Ah
1600
N
No
2
4
27F
318 x 165 x 215
15.0
EV2500
12.8 V
200 Ah
2500
Y
Yes
2
4
F51
485 x 170 x 245
25.0
EV1300/24
25.6 V
50 Ah
1300
Y
Yes
No
4
G77
307 x 170 x 215
12.3
EV3800/36
38.4 V
100 Ah
3800
Y
No
No
4
H52
520 x 269 x 221
39.0
5
2.1 Model range and specifications
2.2 Heater specification
The batteries equipped with a heater can be charged from -20°C to 45°C. When charging at temperatures below 0 °C (down to
-20 °C) power from the charger will be used by the integrated heater to warm up the battery (~1°C / 3 min). When the internal
battery temperature reaches ~0 °C the battery will commence automatically to charge the battery.
2.3 Discharge recommendations
Do not exceed below current levels for discharging the battery. If fully discharged (0 % SOC or low voltage disconnect by BMS)
recharge without delay. Never leave the battery in a fully discharged state.
Model
Nominal
Voltage
Rated
Capacity Temperature range
Constant
Discharge Current Peak Discharge (current / duration)
EV640
12.8 V
50 Ah
-20°C / 60°C
50 A
170 A +/- 10 A
2s +/- 1
EV1250
12.8 V
96 Ah
-20°C / 60°C
100 A
400 A +/- 20 A
5s +/- 1
EV1300
12.8 V
100 Ah
-20°C / 60°C
100 A
300 A +/- 20 A
3.5s +/- 1
EV1600
12.8 V
125 Ah
-20°C / 60°C
100 A
350 A +/- 20 A
3s +/- 1
EV2500
12.8 V
200 Ah
-20°C / 60°C
160 A
400 A +/- 20 A
3.5s +/- 1
EV1300/24
25.6 V
50 Ah
-20°C / 60°C
50 A
80 A +/- 5 A
2s +/- 1
EV3800/36
38.4 V
100 Ah
-20°C / 60°C
50 A
350 A +/- 30 A
2s +/- 1
Currents higher than maximum allowed MUST BE AVOIDED since may shorten battery life or lead to premature failure, and may damage the
connected equipment if BMS protection occurs
2.4 Charge recommendations
For maximum long term performance and endurance of the battery the standard charge method should be used. Never charge the
battery with voltages or currents above the MAX levels as listed in the tables below. For optimal charge process and to facilitate
correct function of the charger all loads should be removed during charge.
5
2.4.1 Standard charge
Model
Nominal
Voltage
Rated
Capacity
Temperature
range
Charge current
(0.3 C)
Charge voltage
Cut-off current
(0.05 C)*
EV640
12.8 V
50 Ah
-20°C / 45°C
15 A
14.6 V
2.5 A
EV1250
12.8 V
96 Ah
-20°C / 45°C
30 A
14.6 V
5 A
EV1300
12.8 V
100 Ah
-20°C / 45°C
30 A
14.6 V
5 A
EV1600
12.8 V
125 Ah
0°C / 45°C
40 A
14.6 V
6 A
EV2500
12.8 V
200 Ah
-20°C / 45°C
60 A
14.6 V
10 A
EV1300/24
25.6 V
50 Ah
-20°C / 45°C
15 A
29.2 V
2.5 A
EV3800/36
38.4 V
100 Ah
0°C / 45°C
30 A
43.8 V
5 A
The standard charge method is CC-CV using the current and voltage levels as listed below.
*The charging should be ended or continue with float charge voltage when cut-off is reached. It is not recommended to maintain the voltage above
float charge level when the battery is fully charged
Note: Batteries without heater MUST NOT be charged below 0 °C.
