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Tesla is revolutionizing batteries for electric bicycles and it has to do with the recent changes at the leading battery cell makers BMZ, Panasonic, Sony, Samsung and LG. Together these five make out some 80% of the world production of battery cells.

These five cell makers used to supply huge numbers of cylindrical shaped cells to the IT industry until the industry changed completely from using cylindrical shaped cells to flat shaped batteries which are now used in laptops, tablets and smartphones. Tesla placing huge orders for cylindrical shaped cells pushed battery cell makers to new highs.

Europe’s largest battery maker BMZ boss introduced the 21700 cell that will revolutionize electric bicycles. In particular as the 21700 cell not only offers a much prolonged lifetime but also batteries with a much bigger capacity for more power and pedal-supported mileage.

The extraordinary features that the 21700 battery cell brings to e-bikes will be the new standard in e-bike batteries. And that this new standard will already be available in 2018.

Instead of the current 18650 (18mm diameter and 65mm high) cell size the 21700 cell is 21mm diameter and 70mm high. The bigger size is bringing a bigger output; up to 4.8Ah. With that capacity the battery lifetime is extended from the current some 500 charging cycles up to 1,500 to 2,000 cycles.

BMZ, together with another global battery player, managed to develop batteries that offer a much longer lifespan thanks to the fact that the new batteries create less heat and has up to 60% more capacity.


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