It amazes me that MMC fit such a tiny battery into a substantial vehicle in which there is ample space for a larger automobile battery. The electrical demand from a lawn tractor is VERY different from that of a small sports car.
I'm not sure what sort of test a Workshop can do: I'd view these batteries as consumable, to be replaced after 2 or 3 years.


Peter,
66, 2016 Porsche Boxster S
No longer driving Tarka, the 2014 Plus 8...