Well I've had a cyma 18c for a fair few yrs not been used for quite a while as not working , didn't know if it was the gun or the batt SO took it up to dazmondo's on the wknd and tried his battery and low and behold it worked , answered that question then , feked battery !
Looked into new battery's for it crappy original nimh 10squid from chinky poo land or £17 for a lipo from Airsoft Scotland . Not happy with either option so have purchased a micro lipo and some pig tailed connectors, ripped out (quite literally) the old battery gubbins attached the new wired adapter and away to go . And funuck me it runs like a train !
think I mite have to get the 100 round hi-cap other wise I'll be emptying the 30round mag in one pull of the trigger !
Don't know how long the gun will hold together before it implodes but it'll be fun while it lasts !