Missus' cousin has a slight disability, the second he speaks, you can tell.......
Any how, he owns a little Jap pop up roof diesel van thingy, that he travels the country in. He's not long had it and has had trouble with the fridge. 12v upright 80l ish. Battery keeps going flat. Someone suggested he get his battery tested. So he did. Surprise, surprise, needs a new one.
I suggested he drop the old one off to me at work and I'll charge it, load it up and see how it goes. He did and it was sitting at close to 13v, about 2 weeks after being removed from the car.
So Saturday morning, I plug in a hot Waeco 40l fridge, 30 hot cans and throw in the fridge monitor. Was expecting the battery to be dead by Sat night. It was around 12 1/2 volts (I did wright it down at home) Sunday morning much the same, beer at 1 deg. By Sunday night, 36 hours after the uncharged battery was loaded up by hot beer/fridge comb, the battery sat at 12.2v, what was left of beer was at 1deg.
Without jumping to conclusions, I'd guess this battery has SFA wrong with it. Charged it overnight and will restock with cold cans tonight and see how lasts, after a decent charge. If it holds up, which I'm sure it will, I'll take it down to where he had it replaced, play dumb and have them test it. Will be interesting to see what they say.
If they say it needs replacing, then I'll accept that is how they operate and will let them know what I think of how they operate. If however, they tell ME it is fine, the same battery they told HIM required replacing, it would appear they are playing on his disability. If so, someone there is going to have a very bad day.
Will see how it holds up over the next few days first. Maybe it is dead, but I doubt it.