High power source and low power load (device)
423
Choosing power supply, how to get the voltage and current ratings?
156300
USB data transfer with a separate power source
12199
Return value of current watt consumption on command line
37729
What's a simpler way to switch between power sources?
58100
Monitoring power consumption on Mac
153381
How do I design a 2A or more power supply for my consumer USB devices?
32827
How to monitor USB power consumption?
15992
Can I charge USB devices from a powered hub that isn't connected to a PC?
31818
Increasing Laptop Battery Service Life
142418
Can you split power between two voltage regulators?
34780
How can I limit battery charging to 80% capacity?
82918
Laptop power saving or management in Ubuntu 14.04
114801
Amplify current and voltage to preserve battery
67448
Can I use a charger with more output amperage than the device needs?
75633
Power Supply Capacity Formula
12308
Keep low power mode on all the time
140532
LED as power generator