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Feb 9, 2018, 7:00 am709 pts
Macworld
Before the USB Power Delivery 2.0 spec became reality, battery packs maxed out at a charge of about 15 Watts (5 volts at 3 amps). PD 2.0 increased the max to 100W, but most of the batteries implementing PD 2.0 strike a balance of performance, heat, cost, and compactness by outputting about 30W. Some recharge at…
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