What's going on ,4 hours sleep costs 20% battery

[jnjroach1]

I haven't had any Power Issues outside the well documented WiFi issue...

 

[yonghong]

attached the keyboard ,and test 1.5 hours ,3% drain,seems ok now, thanks jeff and other friends.

 

[kristalsoldier]

@ Jeff...what would be an acceptable battery drain rate for the SP3 (out of the box) given its connected standby capabilities?

 

[jnjroach1]

Connected Standby as a Standard is 5% drain over a 16 hour period, the SP3 uses a modified version that only uses Connected Standby for 4 hours, then moves to a "light hibernation" for 8 hours at the 12 hour mark it goes into "deep hibernation" which should hold a charge for over a year.

Some of the issues I've observed on these and other communities is as the device attempts to move from CS to hibernation it wakes up and isn't able to re-enter CS and others is a driver or application prevents the device in achieving the 90% Power Floor Target, which means that in CS the device should be at idle and the lowest power state.

 

[kristalsoldier]

Right. Thanks. So, essentially, the battery drain is quite low.

 

[foghat]

Connected Standby as a Standard is 5% drain over a 16 hour period, the SP3 uses a modified version that only uses Connected Standby for 4 hours, then moves to a "light hibernation" for 8 hours at the 12 hour mark it goes into "deep hibernation" which should hold a charge for over a year.

Some of the issues I've observed on these and other communities is as the device attempts to move from CS to hibernation it wakes up and isn't able to re-enter CS and others is a driver or application prevents the device in achieving the 90% Power Floor Target, which means that in CS the device should be at idle and the lowest power state.

This thread had me curious so I left my sp3 unplugged last night. At about 9:50pm I was at 84%. This morning at 6:10am, I was at 82% (at 81% after just a minute or two of use). Looks like I am about working as expected.

 

[yonghong]

The new firmware seems to fix my sleeping battery's problem, put it sleep for 4 hous just drained 1% battery ,pretty impressive.

 

[yonghong]

Thanks for Jeff, you make me happy.