Have you ever gone to the drawer looking for 4 batteries for something or other, only to find a) you don’ t have 4 of any similar type, b) you have no idea if they are charged or not. I have, and it’s always annoying.

I came across this kit last week and ordered one from Neil. I’ve just stuck it together and put it on the kitchen window, it should get some sun before I get up in the morning. The Voltage is currently reading 4.96 on the battery pack. It’ll be interested to see what they read at breakfast time.

It should be possible to leave them in the window all the time, and then I will always know where I have a ‘fresh set’. We’ll see!