Join us on Friday, March 7, at 7:00 pm for the PAARC Monthly meeting at St. James Lutheran Church, 93 Kugler Rd. in Limerick, PA. Tim Poth, W3QP will give an informative talk on:
- Batteries: Watt Hours vs Amp Hours
Most of the time we talk about battery size in Amp Hours but there are cases such as the TSA battery size rules where they specify limits in Watt Hours. Well talk about why and why Watt Hours is a better way to talk about battery capacity.
And…
- USB and the Power Delivery protocol.
USB has come a long way in how much power it can deliver and its increasingly being used as a universal power source thanks to the Power Delivery (PD) protocols. Well talk about what the protocol is, how much power it can deliver and what to look for when you need to power a USB device.