Description
Victron 20A PWM Charge Controller | Boat Supply Store
For vessels requiring dependable 12V or 24V battery bank charging via solar, this Victron Energy BlueSolar PWM-Light controller efficiently manages power input up to 20A. It incorporates essential 3-stage charging (bulk, absorption, float) and features a low voltage disconnect (LVD) on its load output to protect battery health. The integrated lighting timer offers practical functionality for managing DC-powered navigation or interior lights, making it ideal for smaller cruising sailboats or fishing skiffs operating off the grid.
Key Features
- Load Output with low battery voltage disconnect safeguards your battery.
- Lighting Control function with an integrated timer provides convenience.
- Two Digit Seven Segment Display for intuitive settings configuration.
- Three Stage Battery Charging (bulk, absorption, float) optimizes battery lifespan.
- Load Output Protection against overload and short circuits ensures system safety.
- Reverse Polarity Protection for both solar array and battery inputs prevents damage.
- Auto-Detect System Voltage for seamless 12V or 24V battery bank integration.
- Victron Reliability ensures durable and consistent performance in marine environments.
Specifications
| Product Specifications | |
|---|---|
| Brand | Victron Energy |
| Model | BlueSolar PWM-Light |
| System Voltage | 12/24V auto-detect |
| Max Charge Current | 20A |
| Charging Technology | PWM |
| Battery Charging Stages | Bulk, Absorption, Float |
| Load Output | Yes |
| Low Voltage Disconnect (LVD) | Yes |
| Lighting Timer | Yes |
| Display | Two digit seven segment display |
| Reverse Polarity Protection (Solar) | Yes |
| Reverse Polarity Protection (Battery) | Yes |
| Overload Protection | Yes |
| Short Circuit Protection | Yes |
| MPN | SCC010020020 |
Who This Is For
This controller is designed for boat owners and off-grid system users who need a straightforward, reliable solution for charging 12V or 24V battery banks from small to medium solar arrays. It's an excellent choice for DIYers seeking essential battery management without complex programming.
How It Compares
| Feature | Victron 20A PWM Charge Controller | Competitor |
|---|---|---|
| Max Charge Current | 20A | 10A/20A |
| Charging Technology | PWM | PWM/MPPT |
| System Voltage | 12/24V Auto | 12/24V Auto |
| Load Output with LVD | Yes | Yes |
| Display | Two digit seven segment display | LED indicators/LCD display |
Common Concerns Answered
Is PWM technology efficient enough for my marine solar system?
While MPPT controllers offer higher efficiency, PWM technology like that in the Victron BlueSolar PWM-Light is highly effective for smaller solar arrays and simpler charging needs, providing reliable battery management at a more accessible price point.
The display seems basic, will I get enough system information?
The two-digit seven-segment display provides essential status information for basic operation. For more detailed real-time data, consider a system with an integrated display or external monitoring devices.
Does this controller offer advanced features like battery equalization?
This controller focuses on core charging functions including bulk, absorption, and float stages, along with LVD and a timer. Advanced features like battery equalization and temperature compensation are typically found in higher-tier MPPT controllers.
Frequently Asked Questions
What is the maximum solar panel wattage this controller can handle?
For a 12V system, the controller can handle approximately 240W (20A x 12V). For a 24V system, it can handle approximately 480W (20A x 24V). Always ensure your array's voltage and current are within the controller's specifications.
Can this charge controller be used with lithium batteries?
The Victron BlueSolar PWM-Light is designed for lead-acid battery types (flooded, gel, AGM). It is not recommended for lithium batteries, as they require specific charging profiles that this controller does not provide. Refer to Victron's documentation for lithium-compatible controllers.
What is the difference between PWM and MPPT charge controllers?
PWM (Pulse Width Modulation) controllers essentially connect the solar panel directly to the battery when power is needed, acting like a smart switch. MPPT (Maximum Power Point Tracking) controllers actively track the panel's optimal voltage and current output, converting excess voltage to current, thus capturing more power, especially in variable conditions.
How do I set the lighting timer on this controller?
Refer to the manual (URL provided) for specific instructions on setting the lighting timer. Generally, it involves a sequence of button presses or setting adjustments indicated on the seven-segment display.
What does the low battery voltage disconnect function do?
The low battery voltage disconnect (LVD) function automatically shuts off power to the load output when the battery voltage drops to a predetermined low level. This prevents deep discharge, which can permanently damage lead-acid batteries and extend their lifespan.
