If anybody has a Mobiletouch2 remote with a dead battery... instead of buying the ridiculously priced Pentair replacement, I used this < $30 replacement, manufactured by Cameron Sino (I got mine from Walmart, but it's widely available):
www.batterymart.com
I've only been using these for a week so time will tell how they last, but so far so good.
There are a few other threads discussing Mobiletouch replacement batteries, this one was forked off another discussion:
www.troublefreepool.com

Replacement Pentair 520815Z Alarm System Battery (7.4V, 2.2Ah, Li-Poly)
Check out the deal on Replacement Pentair 520815Z Alarm System Battery (7.4V, 2.2Ah, Li-Poly) at BatteryMart.com

I've only been using these for a week so time will tell how they last, but so far so good.
There are a few other threads discussing Mobiletouch replacement batteries, this one was forked off another discussion:
Pentair MobileTouch 2 battery replacement
Moved from here. Hey just got a Mobile Touch II unit that was used and the battery is toast. Opened it up and there are four Lithium Ion packet cells. Two in series and then a pair in parallel for 7.4v ~1600mAh capacity. No way I'm paying $150+ for a replacement. Pentair made it tough with the...
