Sky Blue,
The battery I have fitted in my Dexta is a Yuasa YBX3000, 90Ah, 700Amps. The dimensions are as follows 8 inch high by 63/4 inch deep by 12 inch wide. Fits perfect and the bonnet closes no problem. Plenty of power to start as well. I made a battery clamp from small angle to suit and retainers made from M6 threaded rod. Flattened one end of the rod to fit in the slot in front of the fuel tank. Took notches out the corners to make sue the battery terminals had clearance. See attached photos of set up. If you need the sizes of the retainer frame I made let me know.
Photo of battery and clamp.
Photo of front clamp retainer.
Photo of rear clamp retainer.
Photo of side view of retainer.
Hope this info is of some use.
Regards
Charlie.
