I got the drive battery replaced in both my 2014 spark EV's under warranty. It took persistence and two dealerships but I finally got it done. Both the replacement packs are the LG Chen ones that were used in the 2015 and 2016 spark. The BMS was reprogrammed to accommodate the different cell...
Both my 2014 sparks are aproaching 100k miles and are down to 55 miles on the guess o meter at full charge. These A123 cells are rated for 3.6 volts at full charge and 2.5 volts empty. But I've noticed both cars only charge the cells to 3.35 volts. Is there a way to change the GM BMS programming...
Since both my sparks are out of warrantee and only charge to 67 on the GOM these days I was wondering if it is possible to change the programing to allow full use of battery capacity? Is there any software out there?
Would GM do it at my risk?
One of My 2014 spark 2lt with quick charge option just hit 50,000 miles still never had any issue at all except replace front tires at 45k. That's zero maintain cost! My GOM range in Florida is still 80 miles every morning when I start out. I would love to hear from other owners with higher...
