Efficient MPPT Step-Down Charging for 12V / 24V / 48V Batteries
The LANWEI POWER MPPT buck solar charge controller converts higher solar panel voltage into the lower charging voltage required by 12V, 24V or 48V battery systems. Available in 700W and 1400W models, with 18–150V PV input, LCD display and temperature-controlled cooling fan.
Key Features
- True MPPT technology: Tracks the solar panel maximum power point for efficient solar charging.
- Step-down charging: Converts higher PV voltage to lower battery charging voltage.
- Wide PV input: Supports 18–150V DC solar input.
- LCD display: Shows operating voltage, current and charging information.
- Temperature-controlled fan: Automatically helps manage heat during operation.
- Replaceable fuse: Convenient protection and maintenance design.
- Multiple battery types: Suitable for Lead-Acid, GEL and Lithium batteries.
- OEM/ODM available: Contact us for customization and bulk orders.
Technical Specifications
| Specification | 700W Model | 1400W Model |
|---|---|---|
| Controller Type | MPPT Buck / Step-Down | MPPT Buck / Step-Down |
| PV Input Voltage | 18–150V DC | 18–150V DC |
| Battery Voltage | 12V / 24V / 48V | 12V / 24V / 48V |
| Maximum Output Current | 12.5A | 25A |
| 12V Rated Power | 175W | 350W |
| 24V Rated Power | 350W | 700W |
| 48V Rated Power | 700W | 1400W |
| Battery Types | Lead-Acid / GEL / Lithium | Lead-Acid / GEL / Lithium |
| Dimensions | 14 × 6 × 9.5 cm | 17 × 6 × 9.5 cm |
| Net Weight | 0.58 kg | 0.75 kg |
Selection Note: This is a buck / step-down MPPT controller. Solar panel input voltage must be suitable for step-down charging to the connected battery system.
Need help choosing a model? Send us your solar panel specifications and battery voltage for product selection and quotation.
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