Saooer BLUE 20A
Saooer 20A Solar Charge Controller User Manual
Model: BLUE 20A
Selelekela
This manual provides essential information for the safe and efficient operation of your Saooer 20A Solar Charge Controller. This intelligent regulator is designed to manage the working of solar panels and batteries in a solar system, featuring dual USB ports for mobile device charging. It is compatible with 12V and 24V systems and includes multiple protection functions to ensure system efficiency and prolong battery lifespan.

Setšoantšo sa 1: Pele view of the Saooer 20A Solar Charge Controller.
Litaelo tsa Tšireletseho
- Ensure all connections are correct before powering on the controller. Incorrect wiring can damage the device or connected components.
- The controller is designed for indoor use or in a protected environment. Avoid exposure to direct sunlight, high temperatures, or moisture.
- Do not attempt to disassemble or repair the controller yourself. Refer to qualified personnel for service.
- Boloka moo bana ba ka fihlang teng.
- This controller is only suitable for lead-acid batteries: OPEN, AGM, GEL. Do not use with other battery types like Lithium-ion or LiFePO4, as this may cause damage or safety hazards.
- Always connect the battery first, then the solar panel, and finally the load. When disconnecting, reverse the order: disconnect the load, then the solar panel, and finally the battery.
Likarolo tsa Sehlahisoa
- Automatic System Voltage Boitsebiso: Automatically detects 12V/24V system voltage.
- PWM Charging: Efficient Pulse Width Modulation charging mode.
- Likopano tse peli tse fapaneng tsa USB: Provides 5V/2A output for charging mobile devices.
- Pontšo ea LCD: Clear display of status and data, allowing for convenient mode switching and parameter configuration.
- Mesebetsi e mengata ea Tšireletso: Includes short-circuit protection, open-circuit protection, reverse protection, and over-load protection.
- Li-parameter tse ka fetoloang: User-adjustable charge and discharge parameters.
- Matšeliso a Mocheso: Automatic temperature compensation for optimal charging.
Ho seta le ho Kenya
Follow these steps carefully to install your solar charge controller. Incorrect installation can lead to damage or malfunction.
- Lokisa Wiring: Ensure all wires are properly stripped and have appropriate connectors if necessary. Use wires of sufficient gauge for your system's current.
- Hokela Battery: Connect the battery to the charge regulator first. Observe correct polarity (+ to + and - to -). The controller will automatically recognize the battery voltage (12V kapa 24V).

Setšoantšo sa 2: Lehlakore view showing the connection terminals for battery, solar panel, and load.
- Hokela Solar Panel: Connect the solar panel to the solar charge controller. Ensure correct polarity.
- Connect the Load: Connect the consumer or load to the charge controller regulator. Ensure correct polarity.
Keletso ea Bohlokoa: Always connect the battery first, then the solar panel, and finally the load. When disconnecting the controller, please remove the solar panel, then the load, and finally the battery. This sequence helps the controller recognize the battery voltage correctly and prevents damage.
Litaelo tsa Ts'ebetso
LCD Pontšo le Likonopo

Setšoantšo sa 3: Angled view showing the LCD display and control buttons.
The controller features an LCD display and three buttons for operation:
- Konopo ea Menu: Used to cycle through display modes and enter parameter setting mode.
- Konopo ea Holimo: Used to increase values or navigate upwards in menus.
- Konopo e tlase Used to decrease values or navigate downwards in menus.
Mekhoa ea Pontšo
Press the Menu button to cycle through the following display modes:
- Battery Voltage (V)
- Solar Panel Voltage (V)
- Mojaro oa Hona Joale (A)
- Battery Temperature (°C)
- Tefiso ea Hona Joale (A)
- Phatlalatso ea Hona Joale (A)
- Load Working Mode (24H, 0-23H, 0H)
Litlhophiso tsa Parameter
To enter parameter setting mode, press and hold the Menu button for 5 seconds. Use the Up and Down buttons to adjust values, and the Menu button to confirm and move to the next parameter. Press and hold Menu again to exit setting mode.
| Paramethara | Tlhaloso | Default (12V) | Range (12V) |
|---|---|---|---|
| B01/B02/B03 | Battery Type Selection (B01=Lead-acid, B02=Lithium Ion, B03=LiFePO4) | B01 | N/A |
| Charge Off Voltage | Moqtage at which charging stops | 14.4V | 13.0V - 15.0V |
| Discharge Reconnect Voltage | Moqtage at which load reconnects after low voltage hakolla | 12.6V | 11.0V - 13.5V |
| Discharge Stop Voltage | Moqtage at which load disconnects to protect battery | 10.7V | 9.0V - 11.5V |
| Load Working Time | Timer for load output (24H, 0-23H, 0H) | 24H | N/A |
Note: For 24V systems, multiply the 12V values by two.
Tlhokomelo
- Tlhahlobo ea Kamehla: Nako le nako hlahloba dikgokelo tsohle tsa terata bakeng sa ho tiea le ho senyeha.
- Bohloeki: Keep the controller clean and free from dust. Use a dry cloth for cleaning.
- Moea oa moea: Ensure adequate ventilation around the controller to prevent overheating.
- Bophelo bo Botle ba Battery: Lekola matla a betri voltage and health regularly. Replace batteries as needed.
Ho batle phoso
| Bothata | Lebaka le ka khonehang | Tharollo |
|---|---|---|
| Controller not powering on / LCD blank | Battery not connected or reverse polarity; Battery voltage tlase haholo. | Check battery connections and polarity. Ensure battery has sufficient charge. |
| Solar panel not charging battery | Solar panel not connected or reverse polarity; Insufficient sunlight; Damaged solar panel. | Check solar panel connections and polarity. Ensure panel is in direct sunlight. Test solar panel output. |
| Mojaro ha o sebetse | Load not connected or reverse polarity; Battery voltage too low (low voltage disconnect); Overload protection activated. | Check load connections and polarity. Charge battery. Reduce load or check for short circuit. |
| Likou tsa USB ha li lefelle | Matla a betritage too low; Device not compatible; Faulty USB cable. | Ensure battery is charged. Try a different device or cable. |
| Controller gets hot | Overload; Poor ventilation. | Reduce load. Ensure controller has adequate airflow and is not in an enclosed space. |
Litlhaloso
| Sebopeho | Lintlha |
|---|---|
| Mohlala | PUTSOA 20A |
| Sesebelisoa sa Voltage | 12V / 24V Auto |
| Tefiso e Felletseng/Tlhaloso ea Hona Joale | 20A |
| Sehlahisoa sa USB | Dual USB, 5V/2A (Max) |
| Tšebelisano ea Mofuta oa Battery | Lead-acid (OPEN, AGM, GEL) |
| Litekanyo tsa Sehlahisoa | 5.12 x 2.76 x 1.5 inches (hoo e ka bang 133mm x 70mm x 38mm) |
| Boima ba Ntho | 5 lik'hilograma |
| Pontšo | LCD |
| Mocheso oa ho sebetsa | -35°C ho ea ho +60°C |

Figure 4: Product dimensions of the solar charge controller.
Warranty le Tšehetso
For warranty information or technical support, please contact the manufacturer, Saooer, through their official channels. Refer to your purchase documentation for specific warranty terms and contact details.
Moetsi: Saooer
ASIN: B095764VB7
UPC: 605832982977
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