In an earlier post I mentioned that my 2017 XF Prestige was showing "low battery voltage". I assumed that it was because I have only been doing short trips. I decided to run it up to KwikFit ten miles away for a battery check. They reported that the battery was OK. However, today I checked the voltage with a plug-in digital voltmeter before starting the engine and it read 10.9 volts. When I started the engine it went up to 14 volts. This is the original JLR battery, so I think it needs replacing. My question is how can KwikFit say it's OK? Wouldn't they jump at the chance to sell me a new battery? So they must have thought it was OK! I'm not sure how they load test the battery.