How much energy we can use from 2 kWh lithium-ion batteries having 80% DOD?
Answers
Answer:A battery’s depth of discharge (DoD) indicates the percentage of the battery that has been discharged relative to the overall capacity of the battery. For example, if you have a Tesla Powerwall that holds 13.5 kilowatt-hours (kWh) of electricity, and you discharge 13 kWh, the DoD is approximately 96 percent.
The more frequently a battery is charged and discharged, the shorter its lifespan will be. It’s generally not recommend to discharge a battery entirely, as that dramatically shortens the useful life of the battery. Many battery manufacturers specify a maximum recommended DoD for optimal performance of the battery.
For example, if the manufacturer of a 10 kWh battery recommends a maximum DoD of 80 percent, you shouldn’t use more than 8 kWh from the battery without recharging. You can see why DoD is an important factor to consider: a higher DoD means you can use more of the energy being stored in your battery. Many modern lithium ion batteries these days advertise a DoD of 100 percent.
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