Two years old although only been charged 4-5 times max.
I purchased this to use at Dusk til Dawn whilst running solo.
The casing has a slight crack in two places, about an inch long but the battery is in full working order. To be honest, the crack is only visible if you apply pressure to the battery and it opens the crack.
I have modifed a mount so that it can be mounted on the standard quick release bracket. I had two brackets on my bike, one for the light and one for the battery. Works a treat and keeps cabling to a minimum.
Comes complete with the charger adapator.
£44 posted - Payment by paypal gift