Battery Parameters |
Item |
SMR-MPPT2075 |
Max Charging Current |
20A |
System Voltage |
12V/24V automatical recognization |
Max input power |
260W/520W |
Max volt on Bat. Termina |
35V |
Battery Type |
Lithium, Liquid, Gel, AGM (Programmable, default: Gel) |
Liquid, Gel, AGM |
MPPT Charging Voltage |
<14.5/29V@25℃ |
Boost Voltage |
14.5/29V@25℃ |
Equalization Voltage |
14.8/29.6V @25℃ (Liquid, AGM) |
Float Voltage |
13.7/27.4V@25℃ |
Low Volt. Disconnect |
10.8~11.8V/21.6~23.6V; SOC1~5 (Default: 11.2/22.4V) |
Reconnect Voltage |
11.4~12.8V/22.8~25.6V (Default: 12.0/24.0V) |
Overcharge Protect |
15.5/31.0V |
Temp. Compensation |
-4.17mV/K per cell (Boost, Equalization), -3.33mV/K per cell (Float) |
Lithium |
Charging voltage target |
10.0~32.0V (Programmable) |
Charging voltage recovery |
9.2~31.8V (Lithium, Programmable) |
Low voltage disconnect |
9.0~30.0V (Lithium, Programmable) |
Low voltage reconnect |
9.6~31.0V (Programmable) |
0℃ Charging protection |
Yes, No, Slow(Default: Yes) |
Panel Parameters |
Max volt on PV terminal *1 |
55V |
Dusk/Dawn detect volt. |
3.0~20.0V (Programmable) |
Day/Night delay time |
0~30Min (Programmable) |
MPPT tracking range *2 |
(Battery Voltage + 1.0V)~Voc*0.9 |
Max tracking efficiency |
>99.9% |
LoadSystem Parameters |
Output Current |
20A |
Max charge conversion |
97.5% |
Communication |
Infared/RS485 |
Self consumption |
6mA |
Ambient temperature |
-35~+60℃ |
Ambient humidity |
0~100%RH |
Protection degree |
IP67 |
Max Altitude |
4000m |