Western WRM15 DualB-E Charge Controller 12-24V 15A MPPT 2 Outputs Battery

Western WRM15 DualB-E 12-24V 15A MPPT Charge Controller with two outputs battery

WRM15 dualB-E is a device able to charge up to two batteries from PV module. It is specially designed for application on boat or camper where there are two batteries: the first one is for feeding the on-board services and the other for starting the engine and engine services. WRM15 dualB-E normally gives priority to the battery 1 (on-board services) and then manages the battery 2 (starter). Battery 2 is still constantly monitored and, if its voltage drops below a certain minimum voltage level, it starts to charge.
WRM15 dualB-E is monitored through an application installed on Android/iOS smartphones that connects via Bluetooth Low Energy to the device and allows to visualize the operating status and set some of its functionalities.
A practical solution for solar installations requiring efficient and reliable management of two separate batteries.
The Charge Controller does not have a load output or a USB port.

WRM15 DualB-E version: what is included
This specific version, the DualB-E, does not include the USB port or the load output found on the DualB model. What the spec sheets don't explicitly state is the practical implication: it is the right choice if you only need advanced dual-battery management without connecting loads directly to the controller.
However, if you need to power small USB devices or control an external load, the WRM15 DualB model is more suitable. The DualB-E version still retains the same dual-battery management logic and remote control via the app.

MPPT Technology
Thanks to MPPT (Maximum Power Point Tracking) technology, the controller optimizes the power generated by the solar panels according to operating conditions, improving the efficiency of battery charging compared with conventional PWM technology.

Battery and Voltage Compatibility
The WRM15 DualB-E is compatible with different battery technologies, including: AGM, GEL, Flooded lead-acid, LiFePO4 lithium batteries. The controller automatically detects the system voltage and can operate with both 12V and 24V battery systems.
Maximum charging current: 15A
System voltage: 12/24V automatic detection.
Maximum solar power: up to 180W at 12V / 360W at 24V.

Features:
- 15A PV solar charge controller.
- Fast MPPT (Maximum Power Point Tracker) technology.
- Dual battery with priority management (primary and secondary).
- 12V/24V battery voltage auto detection.
- Suitable for GEL, sealed, lead acid and lithium-ion batteries.
- Bluetooth remote control with dedicated Android/iOS APP.

IMPORTANT NOTE:
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