Can't find an early Suzuki A50 battery side anywhere! (other than Brazil and I can't speak Portuguese.)
Also sold as AS50 in some markets, low exhaust.
According to factory parts manual will be part number 47211-12100
Colour is not important.
This is the shape
This is the bike:
Send me a message if you have one and are willing to ship to New Zealand. I have Paypal. (edited)