When installing a solar charge controller, always consider between PWM and MPPT, depending on the size of your system, budget, and the power losses that you expect for the system. To choose the best solar charge …
Battery protection board, i.e. the circuit board that plays a protective role. It is mainly composed of electronic circuits, which can accurately monitor the voltage of the battery cell and the current of the charging and discharging circuits at any time under the environment of -40℃ to +85℃, and control the on-off of the current circuits in time.
However, lithium batteries can not be used without a suitable battery management system (BMS), to choose the right battery protection board, we must remember the following points: their components, functionality, types, selection considerations, applications, installation guidelines, advancements, and future trends.
Battery capacity: The BMS board should be sized appropriately for the capacity of the lithium-ion battery pack. This includes the number of cells in the pack, the voltage range, and the maximum current output. Make sure to choose a lithium battery BMS protection board that is compatible with the specifications of your battery pack.
More importantly, your solar charge controller must be able to handle the maximum voltage that the solar panels / solar array can produce. This is the controller’s maximum input voltage. To calculate the maximum input voltage, you need to work out the maximum output of the solar array.
It regulates the current between the panels and the batteries to prevent over-charging and over-discharging, which can damage the batteries and reduce their lifespan. As one of the most expensive, and sensitive, components in your solar setup, protecting your batteries is essential.
Now, consider the night-time scenario when the solar panels are not generating any power. Since the panel voltage is zero, a current can start flowing in the reverse direction, that is from the battery to the panels. The charge controller prevents this reverse flow and increases the battery uptime.