Mitsubishi Outlander PHEV cell replacement
- George Cruddas
- Oct 22, 2024
- 1 min read
šā”ļø Battery Revived!
We had a Mitsubishi Outlander roll in with charging issues and poor range. After some thorough diagnostics, we uncovered the culprit: 2 faulty cells in the battery pack!
What followed was a meticulous process of removing and completely stripping the battery pack to check each module's voltage. In this case, we found the healthy cells sitting at a solid 3.91V, which means a good battery module consists of 8 cells with a total voltage of 31.28V! šš
Once we pinpointed a faulty module showing lower voltage, we removed it and gave it a check-upāmeasuring each individual cell. As we suspected! Two cells were found to have a voltage difference.
After carefully discharging the replacement cells to match the 3.91V of the others, we fitted them in, rebuilt the battery pack, and reinstalled it. Now, it's all charged up and ready to hit the road!
Another one fixed! ā”ļøš
Good day, a couple of questions. Which diagnostic did you use to identify the specific cells affected? Did you need to reprogram the BMU to reflect the new "donor" cells using a MUT-iii?
Thank you for the advice! Much appreciated.