Originally Posted by swamp2
It sounds as if you haven't read the entire thread. If not you should. Batteries without the same or very close rating for Ah can be a nightmare....
I think CSL/Mini battery is a good comprimise with 55Ah compared to 90Ah of stock E9X battery.
58lbs vs. 34.4 lbs worth the money.
I am not convinced at 21lbs or 17 lbs 30Ah lightweight batteries.