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diy solar

Need Specific BMS

KA2IRQ

New Member
Joined
Apr 29, 2022
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12
I love my Overkill BMS - use it in my solar generator.

However, I'm designing a system for a very specific task. It will be running some radio equipment in an isolated location during power outages.

The maximum current draw will be 14 amps (typically more like 5 amps). It will be a 4S system with 100 Ah cells. So I'm looking for a BMS more on that scale (the Overkill is overkill being able to handle 120A - I'm trying to save a bit of money and not purchase a $150 BMS).

I also need a BMS that we can manage remotely somehow. Bluetooth is great, but I'm looking for WiFi or an Ethernet port so that it can interface to other control and monitoring equipment at the site. If we absolutely have to, we can do a serial interface and use an existing Nuc computer, but I'd prefer network capable if at all possible.

Does such a BMS exist?
 
Another vote for JBD, I ordered from here:

Something like this:

If you get the one with UART support you can use ESPHome running on the NUC to communicate with it:
I use mine with Home Assistant but you can also just get to it via a web server:
 
Try LLT power, similar unit to Overkill but with additional RS485 port
Pay slightly more for air shipping, they accept PayPal .

Mike
 
hello ii have this BMS
does any one know what software can monitor it
i tried Pbmstools and Seplos but i can only read it
 

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