Deep cycle batteries refer to batteries with a discharge depth greater than 80%.
It is a high-quality lithium iron phosphate battery that looks no different from ordinary batteries on the outside.
But the cycle life of batteries is ten times that of lead-acid batteries.
In terms of manufacturing process, there are also significant differences from ordinary lead acid, and different manufacturers have different processes to achieve it.
The discharge depth of a single cell or battery is used to measure the amount of released charge. It is expressed in the form of A · h. DOD can also be expressed in percentage form, and lead-acid batteries usually express their DOD in percentage. It is more useful to express DOD in the form of A · h, so that the combination of State of Charge (SOC) (expressed in percentage) and DOD (expressed in A · h) can convey more information compared to both indicators expressed in percentage.
This is evident for a battery with an actual capacity greater than its nominal capacity (e.g. nominal 100A · h, actual 105A · h). When a battery with a rated capacity of 100A · h releases a charge of 100A · h, SOC will become 0, and the DOD of the battery can be expressed as 100% or 100A · h.
But if you want to release all the charge of the battery, but at this time the SOC of the battery is still only 0 (because SOC cannot be negative), and the DOD of the battery marked in percentage can only be 100% (because the DOD marked in percentage cannot be higher than 100%). However, if represented by A · h, then the DOD will become the correct 105A · h.
Knowing that the DOD of the battery is 105A · h is more useful than knowing that it reaches 100%, because even if the DOD of the battery reaches 100%, energy can still be released from it. Another important reason for expressing DOD with A · h is that the discharge depth of the battery is independent of its discharge rate.
In terms of battery performance, this type of god cycle battery is suitable for deep discharge at 100%. After deep discharge, the battery recovers to its pre discharge capacity by charging. (Can be paired with two Anderson plugs to achieve 100% discharge)
The main application scenarios of deep cycle batteries include solar and wind energy storage systems, electric bicycles, electric vehicles, electric forklifts, and electric tools
