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I have 28 cells connected 4 in series, 7 in parallel. I would like to monitor individual cell voltages and trigger a relay or alarm or something should any one go out of range. What are my options please?

I have a couple of panels in series that produce 70V into a charge controller dropping to charge 12V batteries. Every few hours the voltage drops to 14V on the panels before climbing again slowly over a period of time (no shading). I have two identical arrays, and they both do exactly the same...

Further to my last post, I am not sure I understand how my controller(s) actually work, or if they are not working as they should. I wonder if someone could explain please. To test the system, I have the boost set at 13.9V, the float set at 13.9V, and the boost reconnect set at 13.8V, with a...

I have lifep04 cells connected as a 12V bank separated by a switch connected to a 12 V lead acid battery bank. The system is currently set to only charge from solar cells (4 x 250W) in a 2x2 array fed into 2 separate 30A mppt charge controllers. I have set each controller to have a boost...

I have been having no end of trouble with my BMS (see attached).It has was originally throwing up the error shown (see pic), but has subsequently been working again for the last few months until today. I am now receiving the same error as before. I have tried disconnecting it, but no use. 1...

Why does my BMS indicate I have 45% capacity remaining at 3.37 Volts/ cell, whilst the parameters show 3.35 is 60%? Thanks

Anyone experiencing slow update of BMS parameters on xioxang app? Mine was working OK. I did a capacity test and now it only refreshes every 20 seconds or so, and is sometimes hard to get the app to work. It constantly asks for a password before finaly letting me in. Thanks

Help please. I just connected my 4 cells in series with bms until cut out of one cell hit 3. 6v (14.4 total) I then disconnected and charged one bank of cells in parallel at 3. 6V on power supply. The voltage at the dvm connected to the psu is steadily decreasing. Was initially 3.463,now...

Deleted. Duplicate thread

What is the password option for in this android App supposed to do please. I have set a code but it doesn't appear to do anything. I am concerned someone can access my BMS data via bluetooth. Thanks you

My LifePo4s will live in a steel welded battery box. There is little room in the box itself to add compression plates to the ends of the cells. The box, basically has a bottom, four sides, and a removable wooden lid. What are people thoughts on using threaded rod between to sides of the battery...

I have my BMS (from LLT power) and am currently trying to figure out the best method of protecting it from damp. It is to live in the engine room on a boat. Would a plastic box be acceptable, or am I likely to run into overheating problems? Any suggestions of slim enclosures welcomed. The BMS...

I have a tracer 2215rn connected to a single 12V Agm battery, charged by a 50 W panel. It does not want to go into a float voltage, but just sits there at 14.2V with 0.7A going in to the battery. Is it knackered? Thank you

First post. I am trying to determine which BMS I need for my Lifep04 bank. I think I want the 120A version , but am not sure what the difference is between these two. Can anyone offer any advice which would be better. https://www.aliexpress.com/item/4001198181069.html...