Oh yeah, for an EV running 12v at 800a would be ridiculous, not to mention highly unsafe! Your point is well taken in the motive-power field.
However, in a 12v, low current solar storage housebank that draws about 1.2kw daily, with an 800ah bank that would last you about 6 days - assuming one really wanted to draw down to about 80% DOD. But no real big housebank setup should be running 12v anyway, so perhaps 24v at a minimum, ie an 8S battery string would do.
The major intent here was to help maintain a healthy balance among the cells by getting capacity first, and then series stringing them for voltage, rather than just thinking in terms of paralleling entire battery banks together at their end terminals. Housebanks voltages only, not EV's.
However, in a 12v, low current solar storage housebank that draws about 1.2kw daily, with an 800ah bank that would last you about 6 days - assuming one really wanted to draw down to about 80% DOD. But no real big housebank setup should be running 12v anyway, so perhaps 24v at a minimum, ie an 8S battery string would do.
The major intent here was to help maintain a healthy balance among the cells by getting capacity first, and then series stringing them for voltage, rather than just thinking in terms of paralleling entire battery banks together at their end terminals. Housebanks voltages only, not EV's.
Comment