DoD

Depth of Discharge (DoD) is the percentage of a battery’s total capacity drawn down in a single charge-discharge cycle. A battery at 80 percent DoD has used 80 percent of its rated capacity before the next recharge begins.

Why it matters for home backup power

DoD determines how much stored energy your home can actually use during a blackout. A battery rated at 10 kWh but limited to 50 percent DoD delivers only 5 kWh of usable energy; the same battery at 90 percent DoD delivers 9 kWh. For a home running through nightly outages, usable energy, not nameplate capacity, is the number that decides how long your critical loads stay on. LiFePO4 chemistry tolerates deep discharge far better than older alternatives, which is one reason it has become the standard chemistry for modern home storage.(Source: Battery University BU-808)

DoD in practice

Key numbers

Genixgreen LiFePO4 systems operate at a working DoD of 80 to 95 percent, meaning most of the nameplate capacity is available in every cycle. Combined with one-way discharge and inverter efficiency of 90 to 95 percent, the practical planning figure for usable energy is about 85 percent of nameplate. On a 10 kWh system, that is roughly 8.5 kWh available per cycle. The cycle-life rating of 6000+ cycles is measured to the point where capacity drops to 80 percent of the original, so even after years of daily cycling the battery still delivers most of its rated energy.

DoD and State of Charge: two sides of the same reading

DoD and State of Charge (SOC) describe the same condition from opposite directions. A battery at 80 percent DoD has 20 percent SOC remaining. The BMS tracks both values in real time to protect cells from over-discharge and to report accurate charge data to the hybrid inverter. This relationship matters when comparing specifications: a product described as “80 percent DoD” and one described as “20 percent minimum SOC” define exactly the same operating range.

How Genixgreen uses DoD

Genixgreen has built LiFePO4 storage in its own factory since 2011 and ships to 100+ countries, with local stock in Odesa for delivery across Ukraine. Every system in the range is designed for a working DoD of 80 to 95 percent, so the capacity you purchase is close to the capacity you use each day. The integrated BMS enforces the discharge floor automatically, protecting long-term cell health without requiring manual configuration.

Related terms

  • LiFePO4: the battery chemistry that makes high-DoD operation safe and practical over thousands of cycles
  • Cycle Life: how DoD affects the total number of cycles a battery delivers before capacity fades
  • кВт·год: the energy unit used to express both nameplate and usable (DoD-adjusted) capacity
  • Energy storage product range: Genixgreen home and commercial systems with rated DoD and cycle-life specifications
  • Full glossary: all energy storage terms in the Genixgreen glossary

Sources

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