Couple of questions, because I’ve used a previous model a client has. Is the grip large enough for my large hands? Hers felt quite small to me.
Erm, good question. I've never given it any thought. I'll have a look at it tonight.
And, also hers got very hot after a few minutes use, as in the battery felt hot, not warm, hot. Would I be right in assuming her battery is fucked?
No, I don't think so. Fucked Li-Ion batteries that get hot because they are fucked can only be fucked in the way that then means they catch fire and that's an exciting day out for all involved.
Ours has three power settings. We do the floors on 1 and it's ample; run time is a bit over an hour. We use 2 for some stuff, like upholstery. "Max" reduces the runtime to less than 10 minutes, makes an unholy racket, and seems to be overkill for anything except for very heavily soiled carpets or similar. That gets the battery really warm -- rapid discharge of lithium cells does that. It's by design. So at a guess: the one you've used was set to "max"?