Renogy BT-2 Bluetooth Module RJ45 Communication Port Wirelessly Monitor Real-time Insight Precise Control, Compatible Solar Charge Controllers, Battery Charger, Inverter, BT-2 RS485

Added this to my power management system for easy management and configuration. Functionality was perfect for management from the app. Very durable and easy to mount.

So useful with my van solar setup. I can use the app to track the charging of the big LiFePo4 house battery in the back of the box truck. Good range even through the RV door.

Renogy has nice products but they lack in experienced service reps/techs, they told me to ask them any questions on how to use their devices i purchased, this was for a solar dc to dc dual input charger/controller. Told me no on my setup and that i couldn't use their device but they sold it to me anyway. I got my answer from people on Quara forums sadly and not Renogy. All i wanted to do was a standard RV with aux battery setup but i have a dc power supply/charger unit for lead acid i use for my agm bank 120amp smart charger and it works great on my setup it charges my agm bank and powers the Renogy with zero issues using the alternator side of the charger keeping the lithium separate from agm bank. Why they had to make it so hard for me to figure out is beyond me must be a script reader answering tech questions. Bad support great product, well so far it seems great.

I returned this one as not the correct one for the MPPT solar controller I bought it to use with. The other MPPT solar controller I has one already. I hoped this one would work with the one I installed in my Scamp travel trailer, different connector. Not to be a negative review just not the right connector.

The internal BT failed in my BougeRV solar controller which has a data port. I plugged this BT-02 into it and I once again have the Bouge BT bluetooth functioning. No need to use Renogy app! Just plug this in and your orig app works.

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*Update 2026* Renogy continues to push social features and continues to lock those devices to requiring internet access. I use the app to check my power only a few times a year and EVERYTIME I am logged out due to login expiring. That means I cannot use this device without near constant internet. I wish I had never bought any Renogy equipment. Their app claims that once you login you can use the app offline but that is simply a lie - eventually your login will expire whether you are online or offline. It does not matter and then you will not be able to use their app until you get back online to login. This does not workwithout a working internet connection. If you create an account the app claims that it will work over Bluetooth, and won’t require you to login again. This is a LIE. I just turn on the app after successfully setting it up a few months ago. The app said Token failed and requires me to login. If I were out camping I would be dead in the water. This also means it will fail to work once their servers go offline. You don’t need auth to read me the battery status. I camp once a month and it has never stayed connected. This last time it was working fine for a few minutes and despite my phone having no internet it logged me out in the middle of using it. And, of course, I could not login since I had no internet. Do not buy. Return if you still can. Rent claims they have updated the app to not require an internet connection but this too is a lie. They require that you are logged in, and your login token can expire while you are offline which leaves you no way to use the app when off grid.

If you don't have one, you really need to get one.

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Helps me with solar output from my panels

Range is very limited and connection seems to be hit and miss (used two different phones). Functionality is great (options).

Sent out faulty Products that were clearly damaged and did not work at all would not purchase again from seller disappointing

Monitoring Renogy lithium battery instead install a shunt. Just plug and play. You can check battery percentage, amp usage and temperature too.