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Posted by anan
 - Today at 11:18:06
Quote from: voltage != capacity on June 20, 2026, 07:53:01Voltage doesn't matter for range, it's the Wh. They could simply connect them in parallel and stay at 48 V.

I remember a video of a guy (I think it was somewhere in asia, CN possible) with a, presumably, bike battery in this hand going into an elevator and just before the door closed, the battery exploded.
The crux of the "ultra-long range" moniker is not that it relates to range. It masks the fact that it has a higher voltage pack. Basically - long range needs a bigger pack. A bigger pack technically can have higher voltage depending on cell arrangement.
All of this allows them to sell bikes that are easily modifiable to run on higher voltage and make more power to the wheels.
And the more power you try to draw the more likely you will get a thermal runaway event.
Posted by Srumo
 - June 20, 2026, 13:38:32
When I lived in China, I learned that when people can cheat to make money, they will most often do it. It is cultural. So this is not surprising. At least this is not as bad as milk powder.
Posted by voltage != capacity
 - June 20, 2026, 07:53:01
QuoteThe national standard for electric bicycle batteries caps them at a 48 V voltage, a limit suitable for densely populated urban areas given the typical casual treatment of batteries by e-bike owners or renters. The repurposed EV cells, however, often blow past that ceiling to be offered by e-bike makers as "ultra-long range" models
Voltage doesn't matter for range, it's the Wh. They could simply connect them in parallel and stay at 48 V.

I remember a video of a guy (I think it was somewhere in asia, CN possible) with a, presumably, bike battery in this hand going into an elevator and just before the door closed, the battery exploded.
Posted by Tank3
 - June 19, 2026, 18:59:25
Every year gets more and more wild. Now bike accidents are going to result in Pinto-style explosions
Posted by Redaktion
 - June 19, 2026, 14:18:55
A new '"One Bike, One Battery, One Charger, One Code" policy cracks down on illegal EV battery disassembly shops that present an e-bike fire hazard. E-bike manufacturers are mandated to continue support for their current products and provide spare parts for at least five years.

https://www.notebookcheck.net/Unsafe-EV-batteries-end-up-in-e-bikes-as-China-battles-illegal-chop-shops.1325186.0.html