Any knowledge of a UK outlet for 2 pin female plug used on Reention Dorado batteries

Why do you want a UK supplier? They'll charge a fortune for it. Greenbikekit are extremely reliable:

https://www.greenbikekit.com/e-bike-tigershark-frame-battery-plug-2p-6pins.html

I'm aware of Greenbikekit. Their pricing is ca. $4 per terminal plus ca.$8 p&p. for several items.

via Aliexpress ca. $0.67 plus ca. $5 each p&p.

Both subject to 20%vat

So similar costs if I was to buy 5, but both end up costing £6 or £7 per terminal with an intrinsic value of a few pence.

Some enterprising Brit may (or should) import, sell them for a couple of pounds with a good profit margin and provide a service for those of us with these batteries... I've charred two of these terminals while riding 31k km overe the last few years.

I'm aware of Greenbikekit. Their pricing is ca. $4 per terminal plus ca.$8 p&p. for several items.

via Aliexpress ca. $0.67 plus ca. $5 each p&p.

Both subject to 20%vat

 

So similar costs if I was to buy 5, but both end up costing £6 or £7 per terminal with an intrinsic value of a few pence.

Some enterprising Brit may (or should) import, sell them for a couple of pounds with a good profit margin and provide a service for those of us with these batteries... I've charred two of these terminals while riding 31k km overe the last few years.

You won't have to pay VAT on those things. They're only interested if the value is much higher than that. Sometimes the Aliexpress sellers add the taxes at the time of checkout, but I'm pretty sure that GBK doesn’t do that from their website.

The reason the terminals get burnt is because you're connecting the battery when it's switched on. You should always switch it off before putting it on the bike.