Thank you for thinking of me. I have three good batteries and the Charging Hub that holds all three batteries and will charge and balance the charges. For your information, the Mini 2 Battery (New) from DJI is only $55.00 US ($89 AUS) and that includes free shipping…
I looked up the batteries for your Mini 4 Pro (both types…), and they are also New and from DJI with Free Shipping and they are $65.00 US ($105 AUS) for the small battery that maintains the Sub 250-Gram weight and $95.00 US ($153 AUS).
These prices are based on my being in the USA, if you go to the DJI Web Site and goto the Support Page, I do not know if the prices would be the equivalent to the US price or they charge more because it came by a “slow boat from China…” (that is an old American expression to indicated the order takes a ling time…), but actually, you are a lot closer to China than we are.
The advertisement you linked to Alibaba cost $9.00 US less, but there is postage, and then there is shipping time… When I ordered my third battery from DJI, it was here in three days…
Besides, I also am a member of the DJI Forum and when you log on, they award you one point each day that you log on, 5-points when you post something and 3-points when you reply to a thread…
I have accumulated 5,022 points that can be used towards any purchases made from DJI…
Honestly, I logged on once a day, and I usually do… and I earn about 360-points a year that would equate to me being a member for over 14-years, and I have been a member for just about 4-years, so I must have done a lot of posting and replying… L L . . .
I have just submitted my points for DJI Credits and they are computing them now… Perhaps I have to wait for the guy with the abacus to come in tomorrow and figure it out… L L . . .
I’ll let you know what the points ultimately are worth…