MPPT2050-DC32Li is 3.2V MPPT solar charge controller with LED driver built in designed for single-cell lithium batteries. The maximum input power of the solar terminal is 65W, and the maximum output power of the load terminal is 25W.
This MPPT solar charge controller is very suitable for upgrading the lithium battery of the lead-acid battery solar street lamp. It can be compatible with the 22V open circuit voltage solar panel in the system, and the most used LED lamp. The whole street lamp system only replaces the battery and controller. That's it, it can do its best, save resources and reduce overall costs.
The single-cell lithium battery does not have the voltage equalization problem of the series battery pack, which can reduce the requirement of the cell matching degree, simplify the design of the protection board, and can reduce the quality problem caused by the imbalance of the battery core.
However, the use of a single-cell lithium battery also has its disadvantages. Under the condition of using the same solar panel, the charging current of a single-cell lithium battery is three times that of a three-cell lithium battery, and this three times of current causes an increase in voltage drop on the line. A thicker cable is required.
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