Matsushita is one of THE names in batteries in Japan. If you’ve used anything cordless by Makita, you’ve used a Matsushita battery. This is not a little thing, this is a rather big company.
I’m so pleased to see the Firefly batteries available to the public. Maybe they are only a little better then existing high end AGMs but it’s an improvement. I notice from the spec sheet on this battery that Firefly are using a standard-ish positive plate and only using their Microcell™ technology on the negative plate. I expect there’s more improvement to come in the future.
I believe they are way better than AGM, they ahve way more capacity, and should last longer
Hypermiling totally works. It is a combination of fad and good driving techniques. Not yet a household word – it should be.