Last night I was sitting working on the laptop when I smelled a most peculiar smell. I had the gennie running, and as the smell was coming from under where I sat, where the 2 charging units and the 5 batteries are fitted I thought I’d better move pretty sharpish like so I jumped up and switched off the gennie, then came back with the fire extinguisher and lifted the cushions. . . Yes … my toast was done.
No actually nothing had burned, but the mains charging unit was so hot I could not touch it. I suspect it was the thin plastic film that protects the fascia from scratches that was smelling, as it was curled and sad looking. That got binned. testament to the robust build of the Sterling charger, it appears to have suffered no ill effects.
So tonight I set about finding out why that had happened.
First thing I did was check all connections, then I disconnected all batteries bar one, and set the generator away. Small drop in speed as it chugged away so that was fine, I connected the second one, another small drop but that was fine, and I connected them all one by one until I came to the last one, the brand spanking shiny sealed Elecsol that they sent me as replacement for the one that blew up. Nah I thought, as I realised that the magic eye was red. Oops. It shouldn’t be. So I connected that one up, started the gennie and … the gennie struggled to cope. It was as if it was under massive load. So I disconnected it straight away, as last night when I smelled the smell, the charger was actually on float stage and had been for an hour, so theoretically all batteries should have been totally charged.
Very weirdly, the charger is so hot to touch tonight too, even though that new battery is disconnected. I really can’t say I’ve ever noticed it running hot before.
Anyway, out of 7 Elecsols I’ve owned 2 have failed so that’s about 28% failure rate which is enough for me to say, enough. I don’t even want this one replaced. I think I’ll just go with standard wet lead acid batteries from now on as I’ve never had any problems with them in the past. (If you’ve never seen a battery that’s exploded, check the photo out. Remember this was full of sulphuric acid too. The mud is from where it was thrown very quickly out of the door of the van.)
I’m not deliberately dissing Elecsol here, I have no axe to grind at all. Just reporting back the experiences I have. I will ring Sterling tomorrow though to find out if that charger should run that hot, as the B to B charger runs that hot too.