Oudie Supplemental Power Pack

On Wednesday, September 27, 2017 at 2:54:49 PM UTC-7, JS wrote:
I'd think the RigRunner 4004-USB would be best for the job. 4x fused 12v outlets plus two USB ports, in a shielded case.
Jim
https://powerwerx.com/west-mountain-...unner-4004-usb

I wish they and other manufacturers would spec the USB power output. These could supply 0.5A up to 3.0A total or more and still be considered meeting a USB standard. I've seen some awful low actual power delivered from cheap USB adapters, I expect better than average quality from RigRunner but wish vendors would just clarify with specs.

And it's a reminder that modern small devices can draw significant power. As an example an iPhone 7 Plus has a 2.68 Ah battery at 3.8 V. Just charging that battery from flat, and assuming 80% charge efficiency will suck around 1 Ah of charge from a glider 12V battery. On top of whatever it takes to run the device at high screen brightness. Which reminds me I want to remeasure power use and charging of a few modern devices..... its pretty amazing the compact compute and power capacity we carry around nowadays.

I've got to replace the (not cheap/no brand) power supply in my truck, which struggles to deal with a flat iPhone 7 Plus.