Renogy BT-2 Bluetooth Module RJ45 Adapter — Black, Wireless Monitoring & Control for Charge Controllers and Batteries

The Renogy BT-2 Bluetooth Module is a compact RJ45 plug-in adapter that lets you wirelessly monitor and adjust compatible Renogy solar charge controllers, smart lithium batteries, inverters, and DC‑DC MPPT battery chargers using the DC Home app.

Plug the BT-2 into any Renogy RS485/RJ45 communication port to stream real‑time and historical performance data to your phone. Built on Bluetooth 4.2 and BLE technology, the module is optimized for low power and solar‑powered systems, giving you remote visibility and basic control without running additional cables or relying on internet access.

How do I set up the BT‑2 with my Renogy equipment?

Setup is designed to be quick: insert the BT‑2 into the device's RJ45 communications port, enable Bluetooth on your phone, and follow the DC Home app pairing prompts. The module draws minimal power and works with the device’s existing wiring, so no extra power cable is required.

• Insert BT‑2 into the RS485/RJ45 port on the compatible Renogy product.
• Install and open the Renogy DC Home app (iOS or Android).
• Enable Bluetooth and follow on‑screen pairing and device selection steps.
• Verify live data feed and adjust settings as permitted by the connected device.

What data and controls are available through the app?

The DC Home app displays live telemetry like voltages, currents, state‑of‑charge, charge modes, and fault codes; historical logs let you review trends over time. While the exact controls depend on the connected product, you can typically change setpoints, switch charge modes, and view system alerts remotely.

• Real‑time voltage, current, and power readouts.
• Battery state‑of‑charge and charge/discharge history graphs.
• Mode switching (charge profiles) and simple parameter adjustments.
• Event and fault logs for troubleshooting and system checks.

Which Renogy devices are compatible with the BT‑2 module?

The BT‑2 is compatible with Renogy products that include an RS485/RJ45 communication port. That includes many Rover MPPT controllers, Rover Elite, Renogy smart lithium batteries, compatible inverters with communication ports, and dual DC‑DC MPPT battery chargers. Check your device’s specs to confirm the RS485/RJ45 port before purchasing.

• Rover and Rover Elite MPPT solar charge controllers with RS485 ports.
• Renogy smart lithium battery models offering RS485 communication.
• Pure sine inverters with RS485/RJ45 communication support.
• Dual DC‑DC MPPT battery chargers that expose an RJ45 port.

What range and power behavior can I expect from the BT‑2?

Using Bluetooth 4.2 and BLE, the BT‑2 typically maintains a reliable connection up to about 82 feet (25 meters) under open conditions; actual range varies with obstacles and RF interference. The module is solar‑powered by the host system and uses an ultra‑low‑power dedicated chip to limit draw from your battery bank while staying responsive.

• Bluetooth 4.2 / BLE for low‑power wireless communication.
• Typical signal range around 82 ft in open air conditions.
• Solar/host‑powered operation with ultra‑low‑power electronics.
• Designed to maintain connectivity without adding power wiring.

Who is this for? The Renogy BT‑2 is aimed at DIY solar installers, RV and van builders, off‑grid homeowners, and anyone using Renogy gear who wants simple local wireless visibility and basic control. It’s a low‑cost way to add mobile monitoring to compatible Renogy charge controllers, batteries, inverters, and DC‑DC chargers without installing a gateway or networked monitor.