I haven't taken it apart to replace them yet so not sure what batteries are in it. I used to use rechargeables but haven't the last couple of times as they don't last very long in comparison. Is there a type of battery I should be looking to replace them with?
We are heading into summer here. The last couple of days have probably been only 20C but some days they may have 30C temps when the door is in the sun.
Is this your charger? I didn't even realise such a thing existed, I might ask Santa for one for Christmas!