I use a manual Joye 510 battery. Does anyone know if, as these start to last less and less time after so many chargings, they start to become weaker also? Or do the batteries always output the same regardless of how long it lasts between charging? I hope I am asking this right as I'm about as bright as the end of this 510.
It seems like a couple of my batteries are weaker even though the charge still lasts 35-45 minutes on them. Thanks!!