In the above photo displays the Solar Energy Hub. This unit was personally modified as the Solar Input on it was not responsive all the time, as well as causing slow charging issues. Another aspect that was modified was the USB phone charging port, where it was only able to supply a constant current of 500Ma at 5.00v. This power output was not enough to charge modern phones which require a minimum of at least 1.0 to 2.0 Amps at 5.0V. On the left shows the unit before modifications.
Underneath to the left shows the unit after the modifications. Two active components installed was the XL0009 Variable Step Up converter and the TP4056 Li-ion Protection Board. The XL009 was connected in parallel with the Phone Charging USB Port, and was calibrated to 5.0V to suits phone charging specs.
A Switch was installed in on the unit which was in series with the Step Up board to prevent discharge over a long period of time
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| XL009 Step Up Board |
The Step Up board can Step up Voltages from 3.0V to 30 V at around 3 to 4 Amps depending on Heat Dissipation. The potentiometer on the board allows for variable Voltage changes.
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| TP4056 Protection Board |
The TP4056 has 3 pairs of connections. First for Charging Input shown the left red green wires. Second for Battery Input and Third for Battery Discharge. When the Voltage of the Battery Reaches a certain threshold, the board will disconnect the battery from the load, saving the battery from overdischarge.
Underneath to the left shows the unit after the modifications. Two active components installed was the XL0009 Variable Step Up converter and the TP4056 Li-ion Protection Board. The XL009 was connected in parallel with the Phone Charging USB Port, and was calibrated to 5.0V to suits phone charging specs.
