After multiple failed attempts, I finally found a board to power my Banana Pi R3 and the multiple USB dongles.
The battery cells are from the High Voltage Hybrid Batteries for The Prius, There is a USB-C 3.1a battery charger board connected to the battery cells, I used 3.5 cells in parallel, basically stacked them. the UPS board allows me to either plug a 12v wall adapter in easily or a USB-C cable to charge the batteries.
Input voltage : DC 5V/6V/9V/12V/15V/24V Output voltage : Equal to the input voltage (Because the input and output ends are isolated by Schottky diodes, there is a voltage difference of 0.2-0.6V) Output Power : 15W Full charge Voltage : 4.20V(+-1%) Power off switching time: 10MS Operating ambient temperature : -40° to +85° Storage temperature : -65° to +125° Size: 60*18*6MM(Suitable for 18650 battery) Weight :8g
The maximum allowed load power is 15W. The parameters of each version are as follows: 5V Version : Input 5-5.5V,Output 5V/3A 6V Version : Input 6-6.5V,Output 6V/2.6A 9V Version : Input 9-10V,Output 9V/1.7A 12V Version : Input 12-13V,Output 12V/1.3A 15V Version : Input 15-16V,Output 15V/1A 24V Version : Input 24-25V,Output 24V/0.5A
Working Principle: 1 Input port input voltage, output port output voltage (Vout=Vin-0.2~0.6V) 2 If the battery is not fully charged, recharge the battery. 3 If the input port voltage disappears, the battery is discharged, and the voltage is boosted and output from the output port.
Applications: WIFI router network equipment uninterrupted power supply Uninterrupted power supply for industrial equipment such as PLC/HMI/industrial control host Battery powered equipment LI-ON LI-PO Lithium Battery 18650 14500 UPS power supply equipment diy Solar charging Electronic diy kit
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