Do YOU Really need a new charger? Trying to charge dead
batteries will not work!
There has to be a minimum voltage in the batteries or the charger will
not work!
Older Lester chargers need about 70% of normal charge
and the newer chargers made beginning in 2004 need to sense only 5
volts
For the Quick Chargers - on boards 50% - 10volts on the portables