Scooterotica

i have 2 battery trays both 13cm long,one is 5.5 cm wide and one is 6.5 cm wide, i was thinking of fitting a battery tray to my ser 2 tv 175 but which one is the correct one, is one off a ser 1 and the other a ser 2? anyone know?
thanks,mick.

I believe late series 2 used a 6N11A battery, so would be the wider one. Series 1 and early models used a thinner battery.

Should say early series 2 models.