As you guys will not read the rules here they are.
3.1 Cells submitted for approval prior to 01.01.06 have to conform to 2005 BRCA EB rules. The following technical specifications follow the rules adopted by EFRA and will apply to any cells submitted for approval from 01.01.06.
Only rechargeable NiCd or NiMH cells rated at 1.2 volts nominal will be allowed at BRCA sanctioned events. The size of the individual cell(s) to be:-
- Diameter -- 23.0mm +0/-1 mm
- Overall length -- 43.0mm +0/-1.5 mm
Measurements include original manufacturers heat-shrink. Overall length is the maximum length before attaching/soldering any link wires or battery bars. Dimensions taken at ambient temperature, and apply to new/unused cells as submitted by the manufacturer. Cells must never exceed 44.0 mm length after any ‘matching’ or charging processes. All cells must have the original manufacturer’s heat shrink substantially intact. Weights of submitted samples will be recorded to verify that production versions compare. From 2008 onwards, it is intended to amend the rule that cells must never exceed 43.0mm (
including any distortion from charging).
3.2 All rechargeable batteries must meet BRCA specifications before they will be approved by the BRCA Electric Board. Details of newly approved rechargeable batteries will be published on the BRCA website.
Only batteries appearing on the official BRCA website homologation list published in January will be legal for use at BRCA sanctioned events from 1st.April of that calendar year
What this means is it does not matter what cells you buy if they are over the limit then they are illegal.
This has not changed for the last 3 years.
You can measure the Dia now The overall is very debatable because of solder ect and as said before if you are in the A final at Euro's worry about it if not do not.
To Answer another question BRCA members do not have a say in these rules, only the electric board and yes it is for all classes, off road and on road.
What you need to ask is if I have 5 good cells and one bad cell what happens. Yet again a rule with not enough information.