bluwater Posted August 13, 2018 Share Posted August 13, 2018 I bought these battery balancers from Aliexpress. They cost about $19 each and you need one for each battery. The balancers can be linked together depending on the size of your battery bank. I am waiting for some battery cables to arrive and then I will connect the balancers and share some results. In the meantime, here are some pics and specs of the balancers. ___ 1 Quote Link to comment Share on other sites More sharing options...
Chris Hobson Posted August 13, 2018 Share Posted August 13, 2018 Those look good. I like the fact that you can daisy chain them for a unlimited battery bank size. Quote Link to comment Share on other sites More sharing options...
bluwater Posted September 24, 2018 Author Share Posted September 24, 2018 (edited) It's been a while since I got 4 balancers for the 48v battery bank. Ever since I got them I've been in troubleshooting mode and waiting for replacements after two balancers were not working properly. First of all, the instructions regarding connecting these balancers are a bit confusing. Initially I was having problems with one balancer. The voltage of the battery connected to this balancer was much higher than the other three. I contacted the manufacturer and they suggested putting it on a different battery. Then after a few passes of changing batteries and balancers around, another balancer also developed the same issue. Now the voltage on two batteries went south as you can see from the table below. After discussing the problem with the manufacturer, they decided to sent me two additional balancers to replace the bad ones. When I received the new balancers, I re-connected everything and now every balancer is working properly and the voltage difference between the batteries is barely more than 0.01-0.02 volts. Edited September 24, 2018 by bluwater Chris Hobson 1 Quote Link to comment Share on other sites More sharing options...
Burnzy56 Posted November 6, 2018 Share Posted November 6, 2018 How did you get them to replace IV got 7 of them the lights are always Green never turn red I haven't been able to get any help Quote Link to comment Share on other sites More sharing options...
bluwater Posted November 6, 2018 Author Share Posted November 6, 2018 I ordered 4 balancers and I actually replaced 2 of these because they were not working properly. If the ON/OFF LED on all balancers is green then its ok. If it stays red on one or more balancers then you have a problem. The second LED only comes on when the battery is charging or discharging while balancing. If the second LED is off, it means, the batteries are balanced. You can verify this by checking the individual battery voltage. Quote Link to comment Share on other sites More sharing options...
Burnzy56 Posted November 7, 2018 Share Posted November 7, 2018 Thanks so much for the reply Bluwater. Yes the on/off led (green) are all on IV got 7 for a 7s. IV tested them all separate I get a green light and the humming noise. There has been 100mv cell diffence without the red light turning on. I just can't get them to work Quote Link to comment Share on other sites More sharing options...
bluwater Posted November 7, 2018 Author Share Posted November 7, 2018 Did you buy these online? Have you tried contacting the manufacturer? When I had a problem with my balancers, I contacted them and they were quite responsive and helped me solve the issue. I would suggest contacting them directly. Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.