winter charge

[whitey]

 how long must winter charge be left on on a lithium battery? should it be continuous? if not, how do i tell if it is charged properly?

[toolbelt]

I put the charger on until the voltage reads around 2900.  Disconnect and come back a month later, turn him on and repeat if the voltage is down around 2700.  Most years I just do him every other month no matter what the reading.

[RobotLady]

I agree with Toolbelt.