On Sun, Nov 17, 2019 at 8:36 AM Timothy-Allen Albertson via Groups.Io <kd0oia=[email protected]> wrote:
Im using a power supply to run my laptop, hotspot and cell.
Got cigarette plugs with LCD inpuit V, output V and output A
72/73 DR TIMOTHY-ALLEN ALBERTSON KD?OIA/(ex KG6IRH)
On Sun, Nov 17, 2019 at 8:32 AM Raymond Sills via Groups.Io <raysills3=[email protected]> wrote:
And... let's not forget that virtually every cell phone and every laptop computer, tablet, etc., has a lithium battery inside.? Most phones run off a single cell battery and are designed to use a 5 volt charging source.? I have a little gadget that I can insert into the USB cable that's used to recharge those devices.? The gadget is a voltage and current metering device, so I can see exactly how much power is going into the device when charging.? It also confirms when charging is complete, because the current draw is down to almost zero.? This also tells me that the device has an internal battery management system.