How fast does the battery doorbell charge for you?

Hey all,

UK user here. Im trying to wire up my battery doorbell and seeing mixed results. I bought a 18v 800ma powersupply and it works but only charges at 1% / hr, which means it will take 5 days to charge and Im pretty sure it wont keep up powering the box.

Ive seen other people say they’ve tried using a British General unit ( and it appears to work well.

How fast does it charge? does it keep the battery at/around 100%?

Hello, my usb socket has died on my door bell. Di you manage to get it charging through the connectors?