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General| Model | Keeper1220 |
|---|---|
| Type | PWM Solar Charge Controller |
| Rated Voltage | 12V/24V Auto |
| Rated Current | 20A |
| Max Charging Current | 20A |
| Max Load Current | 20A |
| PWM | Yes |
| LCD Display | Yes |
| Max. PV Input Voltage | 50V |
| Max. PV Input Power | 260W (12V) / 520W (24V) |
| Max. Conversion Efficiency | 98% |
| Self-consumption | <10mA |
| Communication | No |
| Battery Type | Sealed, Gel, Flooded |
| Operating Temperature | -20°C to 50°C |
| Storage Temperature | -30°C to +70°C |
| Protection Features | Overcharge, Over-discharge, Overload, Short circuit, Reverse polarity |
Explains the function of various buttons such as Menu, Set, and load switch operations.
Details the LCD display elements, including status indicators for PV, battery, load, and system voltage.
Describes the initial display and status of the controller after electrification.
Details how to navigate through different menus and screens on the controller interface.
Explains the setup procedures for Float voltage, Low Voltage Reconnect, and Low Voltage Disconnect.
Covers load working modes, timer/sensor functions, and automatic system voltage selection.
Details protection mechanisms including LYD, OVD, Load Over Current, and High Voltage Disconnection.
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