Only used a few times, I hate the balance port on these things, so as i had other packs i never really used them. Picked up from a heli purchase, always been storage charged.

Was told from a trusted seller that 2 off the packs had done around 120 ish flights and the other 2 packs only about 20 flights.

I have not used the packs in a few months so buy at own risk, they seemed to go just fine when i used them, They should still be fine as they have been on storage charge and in the bottom of the fridge in a sealed container. I pulled them out about a month ago to check them and they where still ok.

$175 for the 4 off posted, I had a quick look they still retail at $160 each new..