Victron BlueSolar PWM-LCD&USB 12/24V 20A Solar Charge Controller
Victron BlueSolar PWM-LCD&USB 12/24V 20A Solar Charge Controller
A straightforward, no-Bluetooth-needed PWM solar charge controller for smaller 12V or 24V systems - the entry point into the Victron BlueSolar range, built with the same attention to electrical protection as the rest of the lineup.
Simple, visual, and reliable
The built-in LCD screen handles status monitoring and basic setup without needing an app or phone, which suits anyone who wants a "set it and check it on the unit" controller. Charging uses Victron's three-stage bulk-absorption-float algorithm, automatically detecting 12V or 24V battery voltage, with selectable charge profiles for AGM, gel and flooded lead-acid batteries.
Two USB ports built in
A pair of 5V USB outputs (2A combined maximum) let you charge phones, lights or other small devices directly from the controller - handy in a camper trailer or shed setup where you don't want to run a separate USB charger off the battery.
What PWM means for you
PWM (Pulse Width Modulation) charging is simpler and more affordable than MPPT, but it works best when panel voltage is closely matched to battery voltage - so it's the right call for smaller, well-matched 12V/24V panel setups rather than larger arrays where MPPT's extra harvest efficiency pays for itself.
- Battery voltage: 12/24V with automatic voltage detection
- Rated charge current: 20A
- Maximum solar voltage: 28V (12V system) / 55V (24V system)
- Charge algorithm: 3-stage (bulk - absorption - float)
- Battery types: Lead-acid (AGM/Gel/Flooded) and LiFePO4 (with internal BMS)
- Load output: Low battery voltage disconnect, short-circuit and overload protected
- Protection: Reverse polarity (solar array and battery), over-temperature
- Operating temperature: -35°C to +60°C (full load)
- Display: LCD with two-digit seven-segment readout
Best suited to
Smaller 12V or 24V solar setups - camper trailers, basic caravan installs, sheds - where panel size doesn't justify the extra cost of MPPT, and where a simple on-unit display is preferred over an app.