I'll probably get a warning that this isn't the right place to place this ad but I wanted you guys to see it first.  I have 3 chargers for sale.  They are:

A Turnigy 8150 8 cell charger.  $50 firm plus shipping.
An E-flite EFLC3115 3S 1.8 amp charger.  $15 firm plus shipping.
An ElectriFly PolyCharge 1 - 3 cells 250ma, 500ma, 1000ma charger.  $15 firm plus shipping.
Shipping will be via USPS and must include Delivery Confirmation.

Walter it's yours.  Yes it will charge a 4 cell lipoly.  It will charge up to and including a 8 cell lipoly.