thx for advice to all........

don't want to use nicads tho, just dead weight in my humble opinion.

It's some extra $$$ for SURE but am replacing stock Jetcat 1250 mah and "big honkin" 4200 mah recvr bat w/ duralite li-ions. 3 x 4300 mah each. virtually identical weight for the 3 duralites totaling more than 3x the ECU capacity and more than 2x the rcvr capacity. plus the redundancy of the 2 radio bats.

I may have lots of problems ahead of me but bat capacity should not be one of 'em.