Yamaha e-bike batteries

Designing a compatible BMS solution

This project was a commercial failure, but we did get a pretty good companion board going in the ...

Source: https://endless-sphere.com/forums/viewtopic.php?t=70198 Quote: An Arduino compatible boa...

R = 10k Reading Yamaha communication II (13/08) Regarding the Yamaha battery from worksho...

On the original board, it is possible to pull the data output to 42V, and the current will be onl...

The good thing about the Version 3.0 of our Yamaha Board design is that can fit both BJT and MOSF...

Purple trace: Yedlik board Green trace: original board We attached a 10k pull-up resistor to ...

Baseline Current consumption, with the transistors disconnected: 9.82 mA @ 30V 7.5 mA @ 42V ...

Measurement setup Yamaha board V1, with only the Arduino Pro Mini and the RECOM 0.5A 3.3V inst...

This is the current waveform in one loop cycle. Higher current when SCI on Lower current when...

Setting up the test Turn the current off on the DC supplies before connecting the board, o...

This Yamaha battery we usually see on BH and Haibike. It has a very similar BMS to the Shimano b...

In many cases, the charge connector breaks on the Yamaha batteries, but the BMS is still okay. It...