1. Introducció
This manual provides essential information for the installation, operation, and maintenance of the EPEVER LandStar E series solar charge controller, specifically the LS1012E model. The LS1012E is a Pulse Width Modulation (PWM) charge controller designed for off-grid solar systems, featuring advanced digital techniques to ensure efficient and reliable battery charging.
Les característiques clau inclouen:
- High-efficient Series PWM charging to increase battery lifetime and improve solar system performance.
- Utilizes MOSFET as an electronic switch, eliminating mechanical switches.
- Intuitive LED indicators display battery voltage estat.
- Supports three charging options: Gel, Sealed, and Flooded batteries.
- Manual control for load output.
- Temperature compensation for accurate charging and discharging parameters.
- Industrial-grade design for robust performance.
2. Informació de seguretat
Please read all instructions in this manual carefully before installation and operation. Failure to follow these instructions may result in damage to the controller, battery, or other components, and may cause personal injury.
- NO desmuntar o intentar reparar el controlador.
- Install an external fuse or breaker as required for safety.
- Always disconnect the solar module and fuses/breakers near the battery before installing or moving the controller.
- Ensure all power connections remain tight to prevent excessive heating from loose connections.
- Only charge batteries that comply with the controller's parameters.
- Battery connections can be wired to a single battery or a bank of batteries.
- Risc de descàrrega elèctrica: The PV array and load can produce high voltages when the controller is operating. Exercise extreme caution.
3. Producte acabatview
The EPEVER LS1012E controller features a compact design with clearly labeled terminals and indicators for easy setup and monitoring.

Figure 1: EPEVER LS1012E Solar Charge Controller with numbered components.
| No. | Component | No. | Component |
|---|---|---|---|
| 1. | Forat de muntatge Φ4.5 | 5 | Botó |
| 2. | Terminals fotovoltaics | 6 | Indicador LED d'estat de la bateria |
| 3 | Terminals de la bateria | 7 | Indicador LED d'estat de càrrega |
| ④ | Terminals de càrrega | 10 | Indicador LED d'estat de càrrega |
4. Instal·lació
4.1 Muntatge del controlador
Mount the controller vertically on a wall or other suitable surface, ensuring adequate air circulation around the unit for heat dissipation. The mounting dimensions are 92.7mm, and the mounting hole size is Φ4.5mm.
4.2 Wiring Sequence
Follow the correct wiring sequence to prevent damage to the controller and other components. Always connect the battery first, then the solar panel, and finally the load.
- Connecteu la bateria: Connect the battery to the controller's battery terminals (③). Ensure correct polarity (+ to + and - to -). The battery indicator LED (⑥) should illuminate.
- Connecteu el panell solar: Connect the solar panel to the controller's PV terminals (②). Ensure correct polarity. The charging indicator LED (⑧) should illuminate if the solar panel is producing power.
- Connect the Load: Connect the load to the controller's load terminals (④). Ensure correct polarity. The load status LED (⑦) will indicate the load's status.
Important: Disconnect in the reverse order: first the load, then the solar panel, and finally the battery.

Figure 2: Basic connection diagram for the EPEVER LS1012E solar charge controller.
5. Funcionament
5.1 Indicadors LED
The controller features intuitive LED indicators to display the system's status:
- Battery Status LED (⑥): Indicates the battery's charge level.
- Load Status LED (⑦): Indicates if the load is ON or OFF, and can signal overload or short-circuit conditions.
- Charging Status LED (⑧): Indicates if the battery is charging or if there's an overvoltage condition from the PV array.
5.2 Selecció del tipus de bateria
The controller supports three battery types: Sealed, Gel, and Flooded. The battery type can be set via the button (⑤) on the controller. Refer to the specific instructions for changing battery type in the full manual (not provided in this excerpt).
5.3 Control de càrrega
The load output can be manually controlled using the button (⑤). Pressing the button will toggle the load ON or OFF.
5.4 3-Stage PWM Charging
The LS1012E utilizes a 3-stage intelligent PWM charging algorithm to optimize battery health and longevity:
- Càrrega massiva: Proporciona el corrent màxim per carregar la bateria ràpidament.
- Boost/Equalize Charging: Augmenta el voltage to ensure the battery is fully charged and to equalize cell voltages (for flooded batteries).
- Càrrega flotant: Manté la bateria a plena càrrega proporcionant un petit volum constanttage, preventing overcharging.
6. Electronic Protections
The EPEVER LS1012E controller incorporates multiple electronic protections to safeguard the system and ensure reliable operation:
- Protecció de sobrecàrrega de càrrega
- Protecció contra curtcircuits de càrrega
- Protecció de sobre descàrrega de la bateria
- Protecció de polaritat inversa de la bateria
7. Manteniment
Regular maintenance ensures the longevity and optimal performance of your solar charge controller and system.
- Comproveu les connexions: Periodically inspect all wiring connections to ensure they are tight and free from corrosion. Loose connections can cause overheating and system malfunction.
- Netegeu el controlador: Keep the controller clean and free from dust, dirt, and debris. Use a dry cloth to wipe the surface. Do not use liquids or solvents.
- Inspeccioneu el cablejat: Check for any signs of wear, fraying, or damage to the cables. Replace damaged cables immediately.
- Inspecció de la bateria: Regularly check the battery terminals for corrosion and ensure the battery is in good condition. For flooded batteries, check electrolyte levels.
- Ventilació: Ensure the controller's mounting location allows for proper ventilation to prevent overheating.
8. Solució De Problemes
If you encounter issues with your LS1012E controller, refer to the following general troubleshooting steps. For more detailed diagnostics, consult the full product manual or contact technical support.
- Indicació de no càrrega:
- Check PV panel connections and polarity.
- Ensure sufficient sunlight on the PV panel.
- Verify PV open circuit voltage is within specifications (Max. PV open circuit voltage: 30 V).
- La càrrega no funciona:
- Check load connections and polarity.
- Ensure the load is not exceeding the rated discharge current (10A).
- Check the load status LED (⑦) for overload or short-circuit indications.
- Comproveu el volum de la bateriatage està per sobre del baix voltage disconnect (LVD) threshold.
- Press the load control button (⑤) to ensure the load is turned ON.
- La bateria no es carrega correctament:
- Check battery connections and polarity.
- Ensure the battery type setting matches your battery.
- Verify battery input voltagrang e (8V~16V).
- Check for any error indications on the battery status LED (⑥).
- El controlador no s'encén:
- Ensure the battery is connected correctly and has sufficient voltage.
- Check for reverse polarity protection activation.
9. Especificacions tècniques
The following table provides detailed technical specifications for the EPEVER LandStar E series, including the LS1012E model.

Figure 3: Technical specifications for LS0512E, LS1012E, LS1024E, and LS2024E models.
| Paràmetre | Value (LS1012E) |
|---|---|
| Sistema nominal voltage | 12VDC |
| Corrent de càrrega nominal | 10A |
| Corrent nominal de descàrrega | 10A |
| Vol d'entrada de bateriatage gamma | 8 V ~ 16 V |
| Màx. Circuit obert fotovoltaic voltage | 30 V |
| Autoconsum | ≤3mA (12V) |
| Circuit de càrrega Voltage Gota | ≤0.12V |
| Circuit de descàrrega Voltage Gota | ≤0.10V |
| Coeficient de compensació de temperatura | -5mV/℃/2V |
| Temperatura ambient de treball | -35 ℃ ~ + 55 ℃ |
| Humitat | ≤95% NC |
| Tancament | IP30 |
| Posada a terra | Comú positiu |
| Dimensió global | 101.2 * 67 * 21.8 mm |
| Dimensió de muntatge | 92.7 mm |
| Mida del forat de muntatge | Φ4.5 |
| Terminals | 14AWG/2.5mm² |
| Pes net | 0.083 kg |
10. Garantia i Suport
For warranty information and technical support, please refer to the documentation provided with your purchase or visit the official EPEVER weblloc web. Conserveu el rebut de compra com a comprovant de compra per a reclamacions de garantia.
If you require assistance with installation, troubleshooting, or have questions about your EPEVER LS1012E solar charge controller, please contact EPEVER customer service or your authorized dealer.