Solar panel controller with Bluetooth module for 12V/24V battery systems supporting 20A discharge current and maximum panel voltage of 100V at 25°C, compatible with solar controller systems and featuring colour-coded Bluetooth module BT 1.
BT-1 Solar Panel Controller with Bluetooth for 12V/24V Battery Systems and 100V Maximum Panel Voltage

This solar panel controller, designated as model BT-1, provides essential charge regulation for photovoltaic systems operating with either 12V or 24V battery configurations. Its inclusion of a Bluetooth module, specifically the BT 1 unit with colour-coded options, enables wireless monitoring of your solar power setup. The controller manages a discharge current of 20A while accommodating maximum panel voltages that adjust according to environmental conditions - 100V at standard 25°C temperatures and 90V in colder climates down to -25°C. Designed specifically for solar controller system applications within the controller application range, this unit offers practical voltage management without unnecessary complexity.
Features and Construction

The BT-1 controller incorporates essential photovoltaic regulation circuitry alongside its distinctive Bluetooth connectivity module. This combination provides both basic charge control functions and modern wireless monitoring capabilities in a single integrated unit.
Material and Build
Constructed from standard electronic components including circuit boards, regulators, and connectors necessary for solar charge control operations. The Bluetooth module, designated BT 1, features housing materials appropriate for electronic enclosures with colour options available as indicated in the product specifications.
Size and Practical Fit
While specific dimensions are not provided, the controller is designed to integrate into standard solar power systems with its dual voltage support for 12V and 24V battery configurations. The 20A discharge current rating indicates capacity suitable for moderate photovoltaic installations, and the voltage specifications accommodate varying environmental conditions with adjusted maximums for temperature extremes.
Uses and Placement

This controller serves as the central management unit for photovoltaic systems, particularly those requiring wireless monitoring capabilities alongside basic charge regulation functions.
Event or Professional Use
The controller finds application in solar controller systems where remote monitoring via Bluetooth provides operational convenience. Professional installations benefit from the voltage specifications that account for temperature variations, with maximum panel voltage adjusting from 100V at 25°C to 90V at -25°C to maintain system safety across seasonal changes.
Everyday Home Use
For residential solar power systems, the dual 12V/24V battery voltage support offers flexibility for different battery bank configurations. The Bluetooth module allows homeowners to monitor system performance without physical inspection, while the 20A discharge current handles typical household solar requirements efficiently.
Benefits and Buying Value

The BT-1 controller combines essential photovoltaic regulation with modern connectivity in a purpose-built unit designed specifically for solar controller applications.
Reuse and Low Maintenance
As a dedicated solar controller system component with temperature-adjusted voltage specifications, this unit requires minimal ongoing maintenance beyond proper installation. Its design focus on core photovoltaic regulation functions without unnecessary features contributes to reliable long-term operation.
Why Choose This Product
This controller provides specific voltage and current specifications - 12V/24V battery support, 100V maximum panel voltage at 25°C, and 20A discharge current - alongside Bluetooth connectivity in a single integrated unit. The temperature-adjusted voltage specifications demonstrate attention to practical operating conditions, while the dedicated application range ensures the unit is purpose-built for solar controller systems rather than adapted from general-purpose electronics.