BAFANG ULTRA: hidden battery hunt (top bikes)

[AndZab]

Hello, does anybody knows where to find batteries like these ?

I mean, this has to be an ALU TUBE + BATTERY combo kit, used by many ebike factories.
I like very much this battery concept, it's used by the top bike and frame makers.
I find almost 10 bike brands using this same tube/battery combo:

 

[AndZab]

Other example battery :

 

[AndZab]

And this is an example frame - 70 cells - 52V 17.5 Ah

 

[FlyingFinn]

The battery is possibly Bafang’s own battery. I’m not sure though...

The frame is Ansbern.

 

[BDamari]

If an internal battery frame is made for a bafang motor, the battery is also made by bafang.
Same goes for bosch motor bikes, pretty sure.

I recognized some of the batteries posted here in this bafang website:
https://bafang-e.com/en/products/batteries/
Since these are OEM parts they're not easy to buy as a consumer, I only managed to find f03 and f04 models on alibaba.

 

[AndZab]

If an internal battery frame is made for a bafang motor, the battery is also made by bafang.
Same goes for bosch motor bikes, pretty sure.

I recognized some of the batteries posted here in this bafang website:
https://bafang-e.com/en/products/batteries/
Since these are OEM parts they're not easy to buy as a consumer, I only managed to find f03 and f04 models on alibaba.

Hello, thanks.
That's ok, but usually the tube/battery-enclosure is a combo-kit made and sold by a single specialized company.
Like Reention Rhino, for example.
Regards