The most common mistake in residential battery sizing and emergency backup calculations is the linear division trap: Runtime (hours) = Connected Load (Watts) Nominal Battery Capacity (Watt-hours) In physical reality, electrochemical cells and power electronics never behave linearly. Under real...
Source: [Dev.to](https://dev.to/miad_ea7faef80e5125861119/why-battery-storage-calculations-fail-modeling-peukerts-law-inverter-tare-losses-and-depth-of-23l2)