Overview
The PowMr POW-48140A is a 48V solar charge controller with MPPT charging, designed for 48V battery systems. It supports up to 140A MPPT charging current and accepts PV input up to 500V open-circuit voltage (Voc), making it suitable for solar home and off-grid solar power systems.
Key Features
- Only supports 48V system/battery
- MPPT charging current: up to 140A
- Max. PV array open-circuit voltage (Voc): 500V / 500VDC
- Max. PV array power: 6500W
- Max. PV array MPPT voltage range: 60~450VDC
- LCD screen; selectable display items include PV voltage, charging current, charging power, battery voltage, and main CPU version
- Charging current configurable via LCD settings; selectable maximum charging current: 10A/20A/30A/40A/50A/60A/70A/80A/90A/100A/110A/120A/130A/140A
- Supported battery types: Lead Acid Battery, Lithium Battery, User-Defined
- Compatible 48V battery examples shown: GEL, Flooded, AGM, LiFePO4, Sealed lead-acid
- Three-stage charging shown: Boost Charge → Bulk Charge → Float Charge → Equalization Charge (note: equalization charge is once a month)
- Forced air cooling (built-in cooling fan)
- Temperature range shown: -31°F to 113°F; temperature compensation technology mentioned
- MPPT efficiency text shown: tracking efficiency up to 99.9%; peak conversion efficiency up to 97%
Specifications
| Brand | PowMr |
| Model Number | POW-48140A |
| Battery Voltage | 48V (only support 48V system) |
| Maximum Current | MPPT 140A |
| Max PV (PV Open-Circuit Voltage, Voc) | 500V / 500VDC |
| Max. PV Array Power | 6500W |
| Max. PV Array MPPT Voltage Range | 60~450VDC |
| PV Wire Size | 12AWG |
| Recommended Battery Wire Size | 2AWG |
| Certification | CE |
| Is Smart Device | No |
| High-concerned chemical | None |
| is_customized | Yes |
| Origin | Mainland China |
| Application | Thermal Controller; Charger Controller; Lighting Controller; Solar System Controller; Solar Working Station |
| Feature | Solar Battery Regulator |
| Feature 1 | MPPT Solar Charger Controller |
PV Module Selection Notes
- Open circuit voltage (Voc) of PV modules must not exceed the max. PV array open circuit voltage of the charger.
- Open circuit voltage (Voc) of PV modules should be higher than min. battery voltage.
Installation Notes (Not Included)
- Solar panel and circuit breaker are sold separately and are not included in the bundle.
- Wiring cable, bus bar, battery, and switch are sold separately and are not included in the bundle.
- The wiring cable from inverter to battery and the breaker are not included in the bundle.
Applications
- 48V solar battery charging for lead-acid and lithium battery banks
- Solar home energy systems and solar working stations
- Lighting and solar system controller setups requiring MPPT charging
For product selection or setup help, contact customer support at https://tsolar.top/ or service@tsolar.top.
Details
High-voltage PV input up to 500V Voc and up to 140A MPPT charging make this controller a strong fit for 48V battery banks.
Designed to pair with high-voltage solar strings while charging a 48V battery system efficiently.
Match your array to the MPPT range and power limits for safe, reliable operation.
A basic wiring layout helps plan panels, protection, and wire sizing before installation.
Pairing the controller with proper battery wiring, bus bars, and an inverter supports stable off-grid power.
Three-stage charging with periodic equalization helps support battery health over long-term cycling.
Use the onboard screen to review PV/battery data and set a charging-current limit to suit your battery bank.
