Recent content by DavidOfMA

Good to know, and sorry that happened. I've been disconnecting the battery and it sounds like that was a good idea. Although, I'm also unimpressed with Mazda's quality control. At 53K, my 2014 Mazda 3 exhaust manifold cracked, necessitating an out-of-warranty, $2200 repair last year. I decided...

I am impressed by the ability of pulse repair mode to desulphate. After two cycles, my battery went from 74% to, today after two days sitting, 92%, according to the Topdon battery tester, and it passed the cranking test with flying colors.

Thanks, everyone, for your input. I'll play it safe and leave it disconnected when I do a pulse repair charge.

The instructions, which are minimal, don't say one way or the other. I'm here because I'm looking for someone who has actually tried it.

I tried a pulse repair on my five-year-old car battery and, to my surprise, the first pass brought the battery health from 74% to 84% and a second pass a few days later brought it up to 90%. Because I use the car infrequently, I'd like to use this on a regular basis. I'd prefer not to...