Surface Pro 3 SIMPLO battery degradation

Update 3 July 26, 2016: The techs were able to confirm the issue and offered me a same-device refurb replacement. The replacement is a newer-revision SP3 with an LGC-LGC battery and came with Windows 10 build 1511 pre-installed. I'm a happy camper. Thanks for (finally) doing the right thing, Microsoft.

Update 2 July 25, 2016: Came back to the Microsoft Store after they told me they didn't find anything wrong after charging it and leaving it unplugged for 6 hours. Yeah, well, it might help to disable sleep mode if you're going to perform a battery rundown test (facepalm!) And apparently, powercfg is a new thing for the monkeys at the Microsoft Store. Anyhow, after showing the tech all that and also making him witness my Surface losing 10% of its battery in about as many minutes, he finally agreed that something was wrong. Long story short, the last thing they want to do before replacing my device is a wipe and factory reset to rule out any software cause. (To me it's more likely that Microsoft themselves pushed out a bad firmware update with faulty power management...) Fingers crossed...

Update 1 July 23, 2016: Brought my Surface to the local Microsoft store. My device is technically a few days out of warranty but they were willing to work with me. I handed it over to them so they could "run diagnostics". Told to check back in 1-3 days. There's the possibility I'll be able to exchange my Surface if the diagnostic comes back faulty.


After seeing articles like this in my news feed, I ran powercfg /batteryreport on my Surface Pro 3 to check if I might be affected. Unfortunately, the answer is yes, to say the least...

To be honest I haven't really been noticing as my Surface has mostly been sitting at home connected to an AC adapter, but when school starts up this is going to be a major pain in the ass. I'm typing this while on battery and I can see the battery life percentage decreasing almost in real time. In less than half an hour it's gone down from 100% to 67%.

I'm debating whether or not a trip to the local Microsoft Store is worth it. Surface phone support seems to be useless - if you're no longer under warranty they want $450 from you to do a replacement. I wonder if the support techs simply aren't aware of this being a widespread issue, or if Microsoft just doesn't care...either way, there's probably going to be a lot of pissed-off SP3 users soon.

Here you can see the battery capacity history from powercfg /batteryreport. How suspiciously convenient that the degradation starts occurring close to the 1-year mark, when most owners are going to be out of warranty...

PERIOD FULL CHARGE CAPACITY DESIGN CAPACITY
2015-11-15 - 2015-11-2341,239 mWh 42,157 mWh
2015-11-23 - 2015-11-2941,105 mWh 42,157 mWh
2015-11-29 - 2015-12-0640,587 mWh 42,157 mWh
2015-12-06 - 2015-12-1340,885 mWh 42,157 mWh
2015-12-13 - 2015-12-2140,838 mWh 42,157 mWh
2015-12-21 - 2015-12-2940,876 mWh 42,157 mWh
2015-12-29 - 2016-01-0340,576 mWh 42,157 mWh
2016-01-03 - 2016-01-1140,824 mWh 42,157 mWh
2016-01-11 - 2016-01-1841,131 mWh 42,157 mWh
2016-01-18 - 2016-01-2541,299 mWh 42,157 mWh
2016-01-25 - 2016-02-0741,268 mWh 42,157 mWh
2016-02-07 - 2016-02-1441,201 mWh 42,157 mWh
2016-02-14 - 2016-02-2241,683 mWh 42,157 mWh
2016-02-22 - 2016-03-0641,256 mWh 42,157 mWh
2016-03-06 - 2016-03-1441,070 mWh 42,157 mWh
2016-03-14 - 2016-03-2140,945 mWh 42,157 mWh
2016-03-21 - 2016-03-2840,494 mWh 42,157 mWh
2016-03-28 - 2016-04-0440,061 mWh 42,157 mWh
2016-04-04 - 2016-04-1338,910 mWh 42,157 mWh
2016-04-13 - 2016-04-1838,258 mWh 42,157 mWh
2016-04-18 - 2016-04-2538,197 mWh 42,157 mWh
2016-04-25 - 2016-05-0138,349 mWh 42,157 mWh
2016-05-01 - 2016-05-0937,741 mWh 42,157 mWh
2016-05-09 - 2016-05-1538,124 mWh 42,157 mWh
2016-05-15 - 2016-05-2238,173 mWh 42,157 mWh
2016-05-22 - 2016-05-2939,119 mWh 42,157 mWh
2016-05-29 - 2016-06-0541,869 mWh 42,157 mWh
2016-06-05 - 2016-06-1242,583 mWh 42,157 mWh
2016-06-12 - 2016-06-1939,968 mWh 42,157 mWh
2016-06-19 - 2016-06-2633,398 mWh 42,157 mWh
2016-06-26 - 2016-07-0332,490 mWh 42,157 mWh
2016-07-03 - 2016-07-1026,051 mWh 42,157 mWh
2016-07-1123,682 mWh 42,157 mWh
2016-07-1223,682 mWh 42,157 mWh
2016-07-1321,530 mWh 42,157 mWh
2016-07-1418,453 mWh 42,157 mWh
2016-07-1518,453 mWh 42,157 mWh
2016-07-1618,453 mWh 42,157 mWh
2016-07-1718,453 mWh 42,157 mWh
2016-07-1818,453 mWh 42,157 mWh
2016-07-1918,453 mWh 42,157 mWh
2016-07-2018,453 mWh 42,157 mWh
2016-07-2118,453 mWh 42,157 mWh
2016-07-2218,453 mWh 42,157 mWh

MaroonMed

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