Can I use a power bank to power my electronics projects? What is the maximum current and voltage that I can obtain?
Yes, you can. Power banks or supplementary batteries are an excellent source of energy to power maker projects that need a more powerful source for portable use. A power bank can supply 5 V with a maximum current of the order of 1.5 A and its autonomy depends on its capacity measured in mAh. Just identify the wires of the power transfer connector, normally 4. In normal applications, the two central wires are the positive and the negative pole. But be careful. Due to the ability to supply current (low internal resistance), a short in these wires can cause a strong current capable of leading the battery to destruction.