Depth of Discharge (DoD)

Definition

Depth of discharge (DoD) is the share of a battery’s nameplate amp-hours you actually use before recharging. Usable watt-hours are Ah × V × DoD. LiFePO4 house batteries are commonly used to about 95% DoD. Flooded or AGM lead-acid is often limited to about 50% for cycle life (sometimes up to about 80% in deep-cycle or emergency use). Lower DoD means fewer usable watt-hours from the same Ah label.

Calculators that use this

• battery storage

  Battery Runtime Calculator

  Estimate how many hours a 12V, 24V or 48V battery will last under a given load. Accounts for LiFePO4 and lead-acid depth of discharge (DoD).

• battery storage

  Battery Bank Sizer for RV/Van

  Size a 12V, 24V or 48V house battery bank from daily watt-hours, days of autonomy and LiFePO4 or lead-acid depth of discharge.

• battery storage

  Lead-Acid to LiFePO4 Upgrade Calculator

  See how many amp-hours of LiFePO4 replace a lead-acid or AGM bank of the same usable energy, plus the weight you save.