Quote:
Originally Posted by
Jim Spencer 
Hi All
I new if I did enough rummaging i'd find this sort of post..
Cells under 3.7ah don't come under homologation at all anymore - you can use those at all events.
(See BRCA > Electric Board > Homologation > Batteries, rule 2.6)
Oddly I have a few packs of GP37's lying around somewhere - might have to dust them down.. 
Looking at rule 2.6 again:
2.6 In addition to batteries included on the homologation list, sports/starter level packs of cells that do not have OEM heatshrink, will be allowed at BRCA sanctioned events. These packs must have the original suppliers label intact, stating that they are NiCd or NiMH and the pack capacity. Maximum capacity is 3700mah. These batteries will be allowed at sanctioned events from 1st. Jan. 2008.
Seems to me that cells upto and including 3700mah will be allowed as well as those on the "list" assuming Nationals are sanctioned events.