WWRC is running a special on the Cellpro 4S and A123 batteries. Below are different combo's that include the custom wiring to balance charge your battery from outside the plane with the 4S Cellpro. If you don't like the wiring listed on the combo deal, it is OK. We custom build them all and can make the changes to your specifications for a small extra charge depending on the wiring. These combo deals will not be listed on the website as the supply is limited. Visa, Mastercard, Discover, Amex or PayPal. I can be called at the office 386.308.1481 M-F 8-5 EST or I can be reached through the PM system here or [email protected] As a factory authorized Cellpro dealer I have these Factory Refurbished 4S chargers available for this deal. They come with a 6 month warranty (versus 12 month on the NIB chargers) and you don't have to send a problem back to the other side of the world. If needed they service your charger right from their Frederick, MD location. Combo deals to follow.