[shortcoursegoat]

im sure someone on rctech has changed over, maybe do a seach on there. was also a crawler forum with a futuba expert on it called Harley.

I run a protek life in my 4pks from amain, had it all year, lasts ages between charges. maybe something like that works in the 4pl also as the standard battery pack in a 4pks is the ht5f1700b that you mentioned above