![]() Both endpoints need to adhere to the protocol to ensure the right current is selected and the feedback loop timing is on spec. There is a power controller on the tablet itself and a handshaking protocol that determines the current requested and delivered. I ought to chop up one of the 90W power supplies too. I have a few spare cables I use for test-fitting prototypes - perhaps I'll chop them up. I doubt the Lorum cable assembly on the new dock is any more complicated. Hi, I did a teardown of the old dock connector. Is anyone aware of any other options we have? All the specifications I could find stated it was 6A which would make it 90W which is why I was willing to buy it - I intend to game on my SB2-15 and need all the power I can get! I'm pretty disappointed particularly in the dock. So for the original 102W charger we have the following: You can work out the wattage of a charger by doing the following: USB-C chargers - almost all 60W only - I only know of the Apple 87W USB-C charger.Surface Dock 90W charger only provides 60W to the surface according to the fine print on the bottom of the dock.Original Microsoft 102W charger is only 95W 15V (The extra 7W is for the 5V USB port).I've done the math and have found the following facts: Hey everyone, I've got a 15-inch SB2 and have been trying to find a powerful 2nd power supply for it, which is proving difficult! But this post is more about giving some awareness to the actual power supply situation - there seems to be a lot of misinformation particularly around what chargers are actually providing to the surface book 2.
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