LFP and maybe LTO are IMO the only LI chemistries safe enough for that use case.
The sophisticated monitoring, control and protection systems, aka "safety electronics" are not inside the packs, but are part of the overall EV systems' design, and are no longer present once the cells are removed.
And the thermal management systems / TMS , temperature controls are especially critical, circulating fluid to keep the packs in the right Goldilocks range, millions invested in just engineering those.
These have not been reverse-engineered yet, and personally if someone claimed to sell such I'd be **very** skeptical.
One day maybe open-source engineers will reverse-engineer standalone infrastructure to make these packs safe enough to use inside our dwellings, but for now people plugging these ideas are IMO the height of irresponsibility
Tesla will come out with "powerwall" type banks designed for mobile use one day I bet.
But an inherently safe chemistry internally will to me always be worth sacrificing even half the energy density.
Risk of thermal runaway, i.e. fire, boom bad, is just too high for use in a small mobile living space.
Stick to lead or LFP.
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