voltage #'s for a 3800
 

what are decent #'s for a 3800 like the #'s on the 38's im looking at are like the same as the 3300 ive got. but will the 3800 have more punch the punch is what i need

They should be about 1.191+ V with an IR of about 2.4 (can't exactally recall the resistance numbers). That is with a 35A discharge.

Look for over 1.20 at 35 amps and 1.22 at 30 amps. I would just go with some 4200 wc cells they are very fast. You can find cells with 1.24 at 35 amps with the new 4200s.