OK so i am already aware that CAC can fluctuate during the summer months but i would like to document and allow others to try and see if the following can help increase their battery health on their cars. I have seen a steady increase in my CAC over the past month since i got my car from circa 154.11 to 154.78 today resulting in a little extra range. The most recent significant increase followed a 150 mile drive i did on A and B roads from preston to leeds and back via Kendal and the south lakes. I drove very gently on the car and arrived back home with 154 estimated miles 140 ideal miles. The drive was on a lovely summers day (yesterday to be exact lol) and don't in max range mode following a full range charge with 1 hours for the battery to settle before setting out on the drive. Essentially a long range eco drive on a hot day has resulted in my battery charge CAC increasing by a small but significant amount. The car has today been charged in standard mode to 191 ideal and 199 estimated miles shown via my OVMS. I would like to see if anyone else can replicate the same situation and get a similar result with their own vehicle. 1) Measure your current CAC on OVMS APP. 2) Charge up fully in range mode 3) Leave car for 1 hour to settle after its charged 4) drive for 150 miles approximately using as much regen as you can on an eco route avoiding motorways. try and get home with over your ideal miles showing on the display by 10-15 miles e.g. 154 estimated 140 ideal and over 50% charge remaining. 5) Charge up in standard mode on 3 pin 240v 13A until full. 6) Measure your CAC on OVMS, has it increased or decreased? Lets see what happens over time with your results. Please post below and see if a pattern emerges. Mine was before 154.32 and following was 154.78.