[Closed] how do i know when my dx lights are fully charged?

You should not let them fully discharge as the batteries do not like it.

When I was using mine over the winter the time taken to charge them up would vary from 1.5 hours to over 3 hours, which was a bit weird.

You know that they're done when the charger starts smoking.

Thanks - just reminded me to put mine on!

Light goes green when charged.

edit: oh yeah. Bugger. Forgot the adapter.

oops let mine run down once

hope they are still ok!

ok thats not very long but thats all good

cheers guys

The protection circuit will trip at the lower voltage limit to prevent over discharge and damaging the cells. BUT do not leave the battery in a discharged state as it will continue to discharge through its own protection circuit (only milliamps) but over time the cells/ battery will not be recoverable.
Also do not leave them fully charged (Li-Ion) for long periods. ideally 30-50%.

smudge.what happens if you leave them fully charged for a long period?
your ones that is...