Overview
The PowMr POW-PSTAR PWM solar charge controller is designed for 12V/24V/36V/48V battery systems, with selectable models rated at 30A, 60A, or 80A. It supports lead-acid and lithium batteries (including LiFePO4 and ternary lithium), provides a PV max open-circuit voltage of 100V, and offers dual control mode (solar light control and time control) for managing the DC load output.
Key Features
- PWM charging technology with 3-stage charge algorithm (bulk, boost, float).
- Automatic identification of 12V/24V/36V/48V nominal system voltage.
- PV input: max open voltage of PV module 100V; PV operating voltage range: > system voltage and <= 100V.
- Battery type selection via backlit LCD, with support for user-defined batteries and battery voltage calibration.
- Load control settings include: 00H (solar light control mode), 24H (turn on load immediately, default), 01H~23H (adjust load enable duration).
- Built-in dual USB output: 5V/2A*2.
- Multiple protections: reverse polarity, output short circuit, over discharging, overheating, and maximum charging current limiting.
- Natural air cooling heat dissipation for silent operation.
Note: Do not charge Li-iron batteries if the battery temperature is below 0 C.
For installation guidance or compatibility questions, contact customer support at https://tsolar.top/ or service@tsolar.top.
Specifications
| Brand | PowMr |
| Application | Charger Controller |
| Model number | POW-PSTAR |
| Certification | CE |
| High-concerned chemical | None |
| Is smart device | No |
| Origin | Mainland China |
| Customized | Yes |
Electrical (Common)
| Charging technology | PWM |
| Charge algorithm | 3-Stages |
| Self-consumption | <= 20mA |
| Nominal system voltage | 12V/24V/36V/48V |
| Max open voltage of PV module | 100V |
| PV operation voltage range | > System voltage and <= 100V |
| USB interface | 5V/2A*2 |
| Operating temperature range | -20 C~+55 C |
| Humidity range | <= 90%, Non-condensing |
| Protection class | IP30 |
Model Variants
| Model | Pstar-30A | Pstar-60A | Pstar-80A |
| Rated charging current | 30A | 60A | 80A |
| Rated output current | 20A | 35A | 50A |
| Max input power (12V system) | <= 360W | <= 720W | <= 960W |
| Max input power (24V system) | <= 720W | <= 1440W | <= 1920W |
| Max input power (36V system) | <= 1080W | <= 2160W | <= 2880W |
| Max input power (48V system) | <= 1440W | <= 2880W | <= 3840W |
| Dimensions | 187*94*49mm | 187*132*60mm | 187*132*60mm |
| Net weight | 0.49kg | 0.7kg | 0.725kg |
Applications
- 12V/24V/36V/48V battery charging in solar PV systems
- DC load control with solar light control and time control modes
- Lead-acid and lithium battery systems (including LiFePO4)
Details
Choose the 30A, 60A, or 80A version to match your system voltage and PV input power range.
A clear wiring layout helps connect panels, battery, and DC load output with appropriate fusing and a breaker.
PWM charging runs a 3‑stage algorithm—bulk, boost, and float—to support stable daily charging.
Battery type selection on the LCD supports lead‑acid profiles and lithium options, including LiFePO4.
Use the front keys and backlit LCD to review PV/battery status and set solar light or timed load control.
Built-in protection features help safeguard wiring and components in typical off‑grid PV installations.
Battery voltage calibration lets you align the controller reading with a multimeter measurement when needed.
