As I live in Thailand where Yuasa batteries are made I can get a YTX7A-BS for A$42 or 18 pounds so that's easy.
I have a YTX9A-BS but I want to lose some weight so I am assuming the 7A will be lighter - yes/no?
Problem is most things have to be bought in UK or USA where thay are very expensive. especially with 30% Duty and 7% VAT!

7 is standard for the nc's. 9 is simply the same footprint but extra capacity due to being taller.

5 would be a better option if you want to lose weight, but not sure that any are made with the terminals orientated correctly. Wiring job.

Stickshift wrote:7 is standard for the nc's. 9 is simply the same footprint but extra capacity due to being taller.

5 would be a better option if you want to lose weight, but not sure that any are made with the terminals orientated correctly. Wiring job.

I checked with Yuasa already. The 5 amp has the terminals in the wrong location for NC's.