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> the load is just a load

You will need a standard communication protocol for storing charge/discharge history with the battery and reporting temperature. Nobody wants to swap in a battery that is exhausted and won't maintain a charge. Vendors maintaining swap pools need to know when to cull old packs.

As the parent says, arguments like these are always a scheme to lock customers into proprietary standards. It's frustrating that companies still think they can get away with this.

Standardization is not in chemistry or the tech itself. It is in voltage/amps and the physical dimensions we already do this with AA and AAA batteries.