viceroy Posted March 29, 2016 Share Posted March 29, 2016 So I've followed youtube videos and looked at threads on here relating to setting up the BMV, and while it seems to work great, it's not behaving when within 3% of 100% SOC. Basically as the day goes by, the SOC rises and as it approaches 100% it gradually slows down. The volts go from bulk to float and then after a few hours at float, the SOC jumps from about 98.6% to 100% like it's been at 100% for a while but not realised it and suddenly jumps. Any idea what settings I should change to resolve this? Quote Link to comment Share on other sites More sharing options...
Guest Posted March 29, 2016 Share Posted March 29, 2016 That is normal. Quote Link to comment Share on other sites More sharing options...
Guest Posted March 29, 2016 Share Posted March 29, 2016 Something to do with the tail current? Quote Link to comment Share on other sites More sharing options...
viper_za Posted March 30, 2016 Share Posted March 30, 2016 The BMV also jumps back to 100% as soon as the ah consumed is back to 0 - This you can't control. You can only control the tail current, charged voltage and charged time ___ 1 Quote Link to comment Share on other sites More sharing options...
Chris Hobson Posted March 30, 2016 Share Posted March 30, 2016 You always need to put more current in than you took out when charging batteries. Using efficiency and Peukerts factor the BMV estimates the energy required to bring the batteries to a 100% SOC. This is not a 100% but a very good approximation. The BMV will jump from 98.7% or there abouts to 100% when the tail current and charged detection time are met. Think of a vehicle with a slightly faulty fuel gauge. You know the tank is nearly full but this is confirmed 100% full when the petrol attendant starts messing fuel on the forecourt. ___ 1 Quote Link to comment Share on other sites More sharing options...
viceroy Posted March 30, 2016 Author Share Posted March 30, 2016 Okay, well I'll play around a little with some settings, but if it's pretty much considered normal, then I'm okay with it. My tail current percentage is set at 1% and detection time is 30 minutes. 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.