CCCV charger, wall wart types?

[kramer5150]

Does anyone have experience with these chargers?
How reliable have they been for you?
Do they cut out at exactly 4.2V or slightly less?
Do they completely terminate charge or do they continue to trickle charge after 4.2V?

http://www.batteryspace.com/smartcharger18afor37vli-ionpolymerrechargeablebatterypack--ullisted.aspx

http://www.batteryspace.com/smartcharger15afor37vli-ionpolymerrechargeablebatterypack--celisted.aspx

http://www.batteryspace.com/smartch...batterypack55mmx21mmbarrelplug--celisted.aspx

Thanks!!
:thinking: