2 ms·

Looking at the video it looks like 18650 batteries in a casing that allow them to be replaced without any soldering by just putting them in slots like you do on

• martini333 2y ago
  Most consumer devices do not take 40 cells. Letting average joe play with 40+ amps of current at 48 volts is not a great idea.
  • Zak 2y ago
    The design of this pack seems to make it very easy to get right. Right means that the cells must be installed in the correct orientation, must all be the same make, model, and age, and must meet the continuous discharge rate requirement for the application. I'm sure someone will find a way to get it wrong, but people also find ways to mishandle fuel for internal combustion vehicles with predictable consequences. The accident rate doesn't need to be zero for this to be a good idea.
    • vallettea 2y ago
      in cas the user puts it in the wrong direction, there is cell level fusing: https://docs.gouach.com/eco-designed-batteries/additional-benefits-of-the-gouach-approach#1bc2d10834344a9ba428a1dd0a451637 https://docs.gouach.com/eco-designed-batteries/additional-be...
• fuzzfactor 2y ago
  Actual soldering was determined to be unsuitable way back with Ni-Cd rechargeable/disposables because solder just isn't quite a good enough conductor of electricity for the duty. Plus when current is flowing, where more resistance is encountered will be the places where more heat needs to be dissipated, and solder melts too easily. Which is why they factory-welded them at instantaneous temperatures beyond the melting point of the interconnection itself.