Here is something to noodle...
Lith-Ion batteries do NOT survive well after being drained below 30% (on average)
Some will then over heat and burst/burn
Their over all life span is also reduced if drained below 40% (on some)
Sodium-Ion can be drained to ZERO and still recharge to 100% and without danger
of explosion nor fire.
Plus Sodium-ion batteries can be recharged an indefinite number of times, vs
Lith-Ion's limited number (thousands)
Am still waiting for capacitor batteries of this class sizing to come one line.
That will then negate chemical batteries short falling...they can NOT absorb
regenerative braking power fast enough...and some of the regen'd power is either
burned up on resistor/heater coils or the inverter just doesn't allow it to regen
that fast/much...
