Ni-Cd rechargable batteries

[toofy27]

Garden lights are powered by Ni-Cd AA 600mAh 1.2v batteries re-charged by a tiny solar panel. I think I have sussed out that I could use batteries with a higher mAh. Am I correct? Also can these batteries be placed in a conventional battery charger when there is insufficient sunshine for the solar panel to top them up?

[solera]

Yes to both

[woodchopper]

There wouldn't be unuff light in the day even in the middle of summer to charge the higher rated ones - the manufacturer put the 600mah ones in for a reason. So u will end up charging them to topthem up.