Join Date: Dec 2013
Location: Sydney Australia
Mentioned: 7 Post(s)
depends how the cirtrickery is built... Inside the charger there should be a diode between the battery contacts and the circuitry. this will prevent back flow of power into the charger from the battery.
This I cannot confirm - and it would also depend on the chargers. I don't use the cheap chargers for my AAA and AA eneloops. I have a Maha Powerex charger and still take the batteries out.
Best to always take batteries out of devices if they are not going to be used for a week or two - even chargers.
Most corrosion occurs from the contact of dissimilar metals of the battery ends and the charger tabs, and this could pull the power out of the battery.
Last edited by Gigitt; 06-27-2015 at 08:09 PM.