BT-1 Bluetooth Solar Panel Controller with 12V/24V Battery Voltage and 100V Maximum Input

This BT-1 model solar charge controller provides essential battery management for off-grid solar power systems, featuring integrated Bluetooth module connectivity for wireless monitoring and adjustment. Designed specifically for solar controller system applications, it handles both 12V and 24V battery bank configurations with a 20A discharge current capacity, making it suitable for small to medium solar installations. The controller regulates charging from solar panels with up to 100V maximum input voltage at standard 25°C temperatures, automatically compensating for colder conditions by reducing this limit to 90V at -25°C to maintain safe operation throughout seasonal variations.

Features and Construction

The BT-1 solar controller incorporates voltage regulation electronics and wireless communication components in a single unit designed for solar energy management applications.

Material and Build

The controller contains electronic circuitry for precise voltage regulation and battery charging control, alongside a Bluetooth module that enables wireless communication with compatible devices. This construction allows for remote monitoring and adjustment of charging parameters without physical connection to the controller, though specific housing materials and weather resistance ratings are not detailed in the available specifications.

Size and Practical Fit

While exact dimensions are not provided, the controller is designed for installation within solar power systems as part of the overall controller application range. Its electrical specifications make it compatible with systems using 12V or 24V battery banks, with the 20A discharge current capacity determining the maximum power it can handle from connected solar panels and deliver to batteries.

Uses and Placement

This solar controller serves as the central management component in off-grid solar installations, positioned between solar panels and battery storage systems.

Event or Professional Use

For professional solar installations or event power systems, the BT-1 controller manages battery charging from solar panels while providing Bluetooth connectivity for remote monitoring. The 100V maximum panel voltage at 25°C allows connection of multiple panels in series, while the temperature compensation feature adjusts this limit to 90V at -25°C for safe operation in winter conditions common to outdoor solar applications.

Everyday Home Use

In residential solar systems for cabins, sheds, or backup power, this controller regulates charging to prevent battery overcharging or excessive discharge. The 12V/24V voltage compatibility accommodates common battery configurations used in home solar setups, while the Bluetooth module enables homeowners to check system status and adjust settings without accessing the physical controller location.

Benefits and Buying Value

This solar controller offers practical battery management with modern connectivity features for solar power system operators.

Reuse and Low Maintenance

The controller's solid-state electronic design requires minimal maintenance beyond proper installation and occasional monitoring through its Bluetooth interface. By preventing battery damage from improper charging, it extends the usable lifespan of connected battery banks, though specific longevity claims or warranty periods are not provided in the available specifications.

Why Choose This Product

The BT-1 solar controller combines standard charging regulation with Bluetooth connectivity in a single unit, eliminating the need for separate monitoring devices. Its temperature-compensated voltage handling (100V at 25°C, 90V at -25°C) provides safe operation across seasonal variations, while the 20A discharge capacity supports practical power levels for small to medium solar applications without requiring overspecified equipment.