Hybrio Uniross Pre-charged 1 X 9v 200 Series Rechargeable Battery

These are not 200mAh batteries, they are 190mAh. That's what it actually says on the battery inside the packaging. The crucial part of the window in the packaging is covered-over, meaning that you have to open the packaging to find that it is only a 190mAh, meaning in turn that you cannot return the battery through our Great British postal system because it is no longer in its unopened original packaging.Uniross apparently do market a pre-charged 200mAh NiMH battery, but this is not it. Maybe this "200 Series" is simply the failures from the other line - who knows?The seller from whom I purchased mine knows this, I have complained about it and they have acknowledged the fact that it is misdescribed, but don't seem particularly concerned by that (in fact simply claimed that they "have never been 200mAh"!).Going by my experience, you won't get a refund either, unless you see this note and don't actually open the packaging to find that the case of the battery itself declares its rating of 190mAh - as that part of the packaging's 'window' has been sneakily covered-up.Obviously, you're unlikely to take them to a small-claims-court for a few pounds for your refund - even though you'd surely win - so why would the advert need to change, eh? (Although Amazon should take note that this is misdescription of goods, plain and simple).If you want as much of the 200mAh that this battery purports to offer then look elsewhere - there are batteries that actually do offer the 200mAh capacity: despite the claim in the "About this item" description and the sole accompanying picture, this is certainly not one of them.

After two months this 9v Hybrio battery swelled up and became VERY hot, while not in use. So I had to dispose of it in the dedicated battery receptacle at my local council refuse centre.I've got three children, so I've got lots of AA and AAA Hybrio batteries, which have all been fine – for many years.I'm slightly annoyed ay myself for not attempting to get a refund at the time. But if I don't think Royal Mail would've been too impressed if it had started smouldering in one of their sorting offices.

I've bought this battery (200mAh) at the same time as a Duracell 9v battery (only 170mAh). Both batteries were used in the remote controller for a toy racing car. This one lasted the longest out of the two but it did run-out within about 30 minutes of playtime. I was expecting it to last far longer than that. Maybe the pre-charge just wasn't very good so fingers crossed it will last a bit longer once I have fully charged it myself.

not precharged as in description but charged OK

Don't hold their charge for very long, can only use them for a few hours, have to re-charge after every use