Posts with the tag equipment testing
USB Charger Specifications and Measurements
This is a list of USB power supplies / chargers that I own. I measured their properties like how they identify themselves as charger devices, I measured their open circuit voltage but also the behaviour under load.
Nominal Specifications:
| Supply for | Voltage | Current | Imprint |
|---|---|---|---|
| Google Nexus 4 | 5.0 V | 1.2 A | Model: MCS-01ER |
| Apple iPad 4 | 5.2 V | 2.4 A | Model... |