Orchardman
Member
This post is a follow on from the one I made several months ago reporting my range in a warm climate. The eagle eyed among you will have noticed that the five-week rolling average I reported then was not correct in my spreadsheet, so I have fixed that up for this post (see 2nd chart).
In late 2019, I changed out the tyres from the original Nexans, which were too skittish for my liking, and replaced them with XK. This lead to an increased rolling resistance which in turn converted into less efficiency. The consumption jumped from about 12.1 to 14.0 kilowatt hours per 100 kilometres. That's about 16%, but I'm happy enough because I don't need the range and now we enjoy a much better set of tyres and superior handling than we had before.
My main point for this post, however, is to report the improvement in range after the installation of the new traction battery replaced under warranty about a month ago. I recorded the GOM readings at various SOCs in the two weeks before and after installation (first chart below). As you can see, I have about a 14% improvement in range according to the GOM. (I don't have an obd to record actual SOC).
Fourteen percent seems to be a lot to have lost in the original battery capacity, for only two and a half years and 30,000 kilometres driven. Was there an adjustment in the BMS updates prior to battery replacement that might have indicated a GOM reading that was reduced regardless of the actual capacity? Or is it indeed indicative of a 14% loss of battery capacity?
In late 2019, I changed out the tyres from the original Nexans, which were too skittish for my liking, and replaced them with XK. This lead to an increased rolling resistance which in turn converted into less efficiency. The consumption jumped from about 12.1 to 14.0 kilowatt hours per 100 kilometres. That's about 16%, but I'm happy enough because I don't need the range and now we enjoy a much better set of tyres and superior handling than we had before.
My main point for this post, however, is to report the improvement in range after the installation of the new traction battery replaced under warranty about a month ago. I recorded the GOM readings at various SOCs in the two weeks before and after installation (first chart below). As you can see, I have about a 14% improvement in range according to the GOM. (I don't have an obd to record actual SOC).
Fourteen percent seems to be a lot to have lost in the original battery capacity, for only two and a half years and 30,000 kilometres driven. Was there an adjustment in the BMS updates prior to battery replacement that might have indicated a GOM reading that was reduced regardless of the actual capacity? Or is it indeed indicative of a 14% loss of battery capacity?
