For no reason other than retail therapy, I grabbed another set of the bike lights. I bought a set a couple of years ago and was blown away with just how good the front light is. The rear had an ill conceived attachment, so i never used it. However this time round, the back light has as good a fitting as the front so they're an even better buy.
Just to recap my story from the last purchase... I was using a £50 Moon light which needed recharging every 7-10 days. That wasn't a problem. It's a great light; very bright and perfect for unlit country lanes. The £15 Aldi light was just as bright and like the Moon, it got used daily, and needed its first recharge 3 months after I began using it!