hill115side Posted August 28, 2019 Report Share Posted August 28, 2019 I have a DNA250C with a Hyperion 2800mah and looks like the charge percentage is off. I have added an image from the Device Monitor screen for reference. Has anyone else had this issue and what could I do yo fix it? Link to comment Share on other sites More sharing options...
retird Posted August 28, 2019 Report Share Posted August 28, 2019 Not many folks have a 4 cell 250C. Your cell 3 seems to be out of balance in the screenshot. You might compare this CSV file to your CSV. Save your battery CSV file and load this one (attached file) if you want to see if that helps or you can run battery analyzer to create a CSV for that battery pack.. Screenshot of my 4 cell 250C while still charging: 4cellcsv.csv Link to comment Share on other sites More sharing options...
hill115side Posted August 28, 2019 Author Report Share Posted August 28, 2019 My CSV file is really close to yours. mine.csv Link to comment Share on other sites More sharing options...
retird Posted August 28, 2019 Report Share Posted August 28, 2019 I updated my previous post... Link to comment Share on other sites More sharing options...
hill115side Posted August 28, 2019 Author Report Share Posted August 28, 2019 running the analyzer now. Link to comment Share on other sites More sharing options...
hill115side Posted August 28, 2019 Author Report Share Posted August 28, 2019 Also, I have balanced charged my lipo a few weeks back and still the percentage was not 100%. After the balance charge, all cells where at ~4.2. Link to comment Share on other sites More sharing options...
Wayneo Posted August 28, 2019 Report Share Posted August 28, 2019 21 minutes ago, retird said: Your cell 3 seems to be out of balance in the screenshot No use running the analyzer now. Over time, leaving your mod charging, it should rebalance, unless you can bring up cell 3 on your own. Link to comment Share on other sites More sharing options...
retird Posted August 28, 2019 Report Share Posted August 28, 2019 So it doesn't balance charge in the device? Link to comment Share on other sites More sharing options...
hill115side Posted August 28, 2019 Author Report Share Posted August 28, 2019 No, it will not balance charge in the device. The best I get is 70% in the device. Link to comment Share on other sites More sharing options...
retird Posted August 28, 2019 Report Share Posted August 28, 2019 So even at 70% each cell isn't balanced? Link to comment Share on other sites More sharing options...
hill115side Posted August 28, 2019 Author Report Share Posted August 28, 2019 no, cell 3 will be around 3.9 and others are 4.2. I would assume that the pack percentage would be higher than 70% at that point. Link to comment Share on other sites More sharing options...
hill115side Posted August 28, 2019 Author Report Share Posted August 28, 2019 Current screen for reference. Link to comment Share on other sites More sharing options...
retird Posted August 28, 2019 Report Share Posted August 28, 2019 The 70% peak may be a CSV file thing but the balance issue may be a battery internal thing or a charger circuit thing in the device. But you say you can externally charge the battery and it is balanced at 100%. Screenshot of my 4 cell completely charged in the device. Shows 99% charge reading. My Battery is not the same one as yours. Link to comment Share on other sites More sharing options...
hill115side Posted August 28, 2019 Author Report Share Posted August 28, 2019 I will do an external balance charge and then see what the percentage on the DNA is. Thanks for all your help. Link to comment Share on other sites More sharing options...
retird Posted August 28, 2019 Report Share Posted August 28, 2019 OK, please let us know what goes..... Link to comment Share on other sites More sharing options...
hill115side Posted August 28, 2019 Author Report Share Posted August 28, 2019 I will, thanks. Link to comment Share on other sites More sharing options...
Wayneo Posted August 28, 2019 Report Share Posted August 28, 2019 @hill115sideAFTER your external balance charge do another printscreen like your last one. Link to comment Share on other sites More sharing options...
hill115side Posted August 28, 2019 Author Report Share Posted August 28, 2019 (edited) SUCCESS, the pack is now fully charged and balanced. After I removed the pack from the mod, it still would not balance charge on the external balance charger. What I did was discharge the pack to the storage voltage level (3.8) and started a balance charge again, that seems to have done the trick. Hope this helps someone else that has a similar issue. Edited August 28, 2019 by hill115side Link to comment Share on other sites More sharing options...
retird Posted August 29, 2019 Report Share Posted August 29, 2019 Great you got it sorted out... but it would be good to keep the battery in the device, use it till it gets to the point it needs to be charged, and charge it within the device to make sure the charging circuit balance charges the battery up to 99% again....... 😉 1 Link to comment Share on other sites More sharing options...
hill115side Posted August 29, 2019 Author Report Share Posted August 29, 2019 (edited) The pack has been sitting the mod plugged to the charger, the battery is currently at 98%. Edited August 29, 2019 by hill115side Link to comment Share on other sites More sharing options...
Thatguy Posted January 26, 2020 Report Share Posted January 26, 2020 I had the same thing happen on my new boards, I thought it was BC I wasn't running a ground (aluminum case, board is grounded to case) so I added a ground and it didn't help. Then I set the mod settings to the correct 2 18650's and uploaded and it works perfectly. Link to comment Share on other sites More sharing options...
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