What Is Depth Of Discharge (dod) And How Does It Affect A Battery?

When a battery is discharged, the amount of energy taken out will determine the depth at which it was discharged. If you have a 12V 100Ah lithium battery and used 50 Ah, you have discharged the battery 50% (which means the depth of discharge is 50%). If a 12V 100Ah lithium battery and discharged it only 20 Ah, or 20% of the battery, your depth of discharge will be 20%. This is an important number to keep in mind. Depending on which type of battery you are using, the number of cycles will vary based on your depth of discharge. Most lead acid batteries experience a significantly reduced cycle life if they are discharged more than 50%. That can result in less than 300 total cycles. Conversely, LiFePO4 (Lithium Iron Phosphate) batteries can be continually discharged to 100% and there is no long-term effect.LILEAD 12V/24V lithium batteries 80% DOD cycle life over 6000times, it’s more than 20 times of lead acid battery.