Which Rich Solar charge controllers need the BT-1 Bluetooth module?

Answered by RV Parts Giant · Upland, CA · October 25, 2026

Short answer: Only the plain 20A, 30A, 40A and 60A Rich Solar MPPT controllers, the ones without a BRAVO name. They have an RS232 port that the BT-1 plugs into and draws its power from. Every BRAVO MPPT, BRAVO PRO, BRAVO 50 DC and BRAVO AIR already has Bluetooth built in. The BRAVO Waterproof and LEGEND PWM listings show no port for it.

Rich Solar sells two kinds of MPPT controller: the BRAVO models with Bluetooth inside, and an unbranded 20A/30A/40A/60A line that's "Bluetooth ready". The BT-1 is only for the second group.

Controller by controller

Controller	Bluetooth	Need a BT-1?
20A, 30A, 40A, 60A MPPT (no BRAVO name)	Optional, through the RS232 port	Yes, if you want the app
BRAVO 30, 40, 50, 60 MPPT	Built in	No
BRAVO PRO 30 / 40 flush mount	Built in	No
BRAVO 50 DC (MPPT + DC-DC)	Built in, plus TTL, RS485 and CAN (RV-C)	No
BRAVO AIR 30 PWM	Built in	No
BRAVO Waterproof 8 / 10 / 20 / 30, BRAVO LEGEND 30 / 40, 30A PWM	None listed	Not listed as compatible; ask us first

If you're still choosing a controller and want Bluetooth, compare a BRAVO with the same amp rating against an unbranded MPPT plus a BT-1. The BRAVO saves you a second box and a cable run.

What the BT-1 is

Plugs into the controller's communication port and is powered by it. There's no battery or separate supply to wire.
5–12V input, 0.04 W on standby and 0.05 W in use, so it adds nothing you'd notice to overnight battery drain.
16.4 ft (5 m) cable, so the module can sit outside a metal cabinet or compartment where the signal would be blocked.
IP67, 2.6 x 2.01 x 0.61 in, two 0.13 in screw holes 2.26 in apart.
Range: Rich Solar's spec table says 15 m or less, and its feature list says up to 50 ft. Plan on reading it from inside the same rig, not from the campground office.

Which app?

The BT-1 and most BRAVO controllers use the RICH SOLAR app. Rich Solar's BRAVO 40 and BRAVO 60 listings name the Smart Life app instead. If you mix controllers on one rig, check which app each one needs before you buy.

More Rich Solar guides: Rich Solar charge controller error codes and Rich Solar vs Victron.

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