| Model |
20DU |
2048D |
| Input |
| PV voltage |
≤50V |
≤100V |
| Rated Current |
20A |
20A |
| Output |
| System Voltage |
12V/24V Auto |
48V |
| HVD |
16.00V×1/×2/×3/×4 |
| Rated discharging current |
20A |
20A |
| No-load loss |
≤13mA |
≤25mA |
| Charge loop voltage drop |
≤0.21V |
≤0.25V |
| Discharge loop voltage drop |
≤ 0.12V |
≤0.12V |
| Charging mode |
PWM 4-stage（bulk, absorption，float, equalized） |
| Voltage of float charging |
13.8(13V~15V)×1/×2/×3/×4 |
| Voltage of absorption charging |
14.4V(13V~15V) ×1/×2/×3/×4 |
| Duration of absorption charging |
2hs |
| Voltage of equalized charging * |
14.6V(13V~15.5V) ×1/×2/×3/×4 |
| Duration of equalized charging |
2hs |
| LVD |
10.7V(10V~14V) ×1/×2/×3/×4 |
| LVR |
12.6V(10V~14V) ×1/×2/×3/×4 |
| Load working mode |
Regular control mode |
| Light control with switch-off point at night and switch-on point before dawn |
| Light control mode |
| Light control voltage |
5V(1V~10V) ×1/×2/×3/×4 |
| Battery type |
GEL, SLD, FLD and USr(default) |
| USB |
5V 1A |
None |
| Other |
| Man-machine interface |
LCD, 2 buttons |
| Wiring |
PCB terminal, ≤6mm2 |
PCB terminal, ≤6mm2 |
| Working temperature |
-20 ~ +55 °C |
| Storage temperature |
-30 ~ +80 °C |
| Working humidity |
10% ~ 90%, no condensation |
| Dimension |
188 x 95 x 46.5mm |
| Net Weight |
355g |
355g |
| IP Code |
IP30 |
| Optional function |
Remote communication，TTL, standard ModBus protocol |
