All I'm doing is using them!!
I honestly don't know why they are so shite!! They just will not take a charge.
You plug it in and the little green light just comes on to say it's fully charged but it's as flat as a bastard pancake!! Same when plugged into the mains at home so I know it's not the chargers!
Before I used it, I let it charge overnight to make sure it was fully charged!
Bloody things!