they only put out 8.4v max so they wont work correctly in some guns or hoppers. if the gun will work on that voltage then they are the way to go.
i use powerex 9.6v rechargeables and they work perfect on all my guns. haven't bought a 9v in over a year. yes the capacity is much less but it still gets over 5 cases per charge.
Last edited by ccluff2 : 02-15-2014 at 11:46 PM.