Well I read all the replies so far. I never really noticed that my Sirrus Pro charger did any better at all than the common ordinary charger you get with your TX system. in fact I use it only as a field charger for about 10 min when I do use it. So I will dolike Tom & others say...just use a standard low rate charger for the Eneloopbattery packs. I think the low rate may be best....a gut feeling. Best Regards, Capt,n