battery

It has been 7 years since I changed the battery. the start-stop has not been working for the past year. I had the battery measured. They say that the voltage is medium, the voltage is charging very well, but they still say it can be done with a battery change. I've come across electricians who say "if it's not important, use it this way, don't waste a battery".

If I asked anyone, our car's battery said AGM, but I had a measurement done at the pearl battery dealer, and it was said that AGM wasted expense and EFB was sufficient. I am waiting for your advice to benefit from the experience of the friends here.
(2012 308 actice. e-hdi)