xalicy right bungleaio, possibly you can make something up trap 121
http://www.ehirobo.com/shop/images/b...700-25-7-4.jpg
shows a cable, but its like when charging, with the balance plug in the charger and the thin cables on the three battery connectors, pos, neg and one of the saddle connectors (2mm connects here). Is this helpful ?
Edit: you search on google, type it up, post it, look at the post and its sorted, note to self: have to be quicker