| Model | POW-Keeper1220 | POW-Keeper1230 | POW-Keeper1240 |
| Rated charge current | 20A | 30A | 40A |
| System rated voltage | 12V/24V Auto work | ||
| Voltage range of battery | 8-32V | ||
| Max open voltage of PV module | 55V | ||
| Battery type | User default, Sealed, Flooded, GEL, LiFePO4 | ||
| Equalized charging voltage | Maintenance-fee lead acid battery 14.6V, GEL: No: Lead acid flooded battery: 14.8V | ||
| Absorption charging voltage | Maintenance-fee lead acid battery 14.4V,GEL: 14.2; Lead acid flooded battery: 14.6V | ||
| Floating charging voltage | Maintenance-fee lead acid battery,GEL, Lead acid flooded battery: 13.8V | ||
| Low voltage re-connection (LVR) | Maintenance-fee lead acid battery,GEL, Lead acid flooded battery: 12.6V | ||
| Low voltage disconnection (LVD) | Maintenance-fee lead acid battery,GEL, Lead acid flooded battery: 10.8V | ||
| Static loss | <9.2mA 12V; <11.7mA 24V | ||
| High voltage disconnection (HVD) | 16V (24V x 2) | ||
| Duration of absorption charging | 2 Hours | ||
| Light control voltage | 5V | ||
| Charge loop voltage drop | <0.29V | ||
| LCD Temperature | -20°C~+70°C | ||
| Operating Temperature | -20°C-+55°C (To run at full rated current continuously) | ||
| Operating Temperature | -20°C-+55°C (To run at full rated current continuously) | ||
| Working humidity | <95% No condensation | ||
| Protection class | IP30 | ||
| Dimension (LxWxH) mm | 123x178x48 | 135x202x55 | 150x220x67 |
| 1 | 1 |
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