Power Cover Not Charging 100% 0% 100% ???

Come on don't bring up the name of that crap. surface is full windows powered tablet and ipad is running on Apple over priced crap os. my 2013 surface pro can still beat any apple tablet and it's not comparable to any non windows tablet. these surface power covers were produced in 2014 and due to the hefty price tag of 300 dollars it was left in Microsoft warehouses. and now it's sold for 30 bucks on amazon and I think people should avoid buying that. it's been drained fully to 0 and it requires some sort of jump start that our friend already told us how to do. I'm not Microsoft fan and they are to blame for not fixing these batteries before selling out. goodluck on your surface power cover. I'm still hoping it will come back alive one day before the surgery date.

Fantastic and relatively easy mod. Just did the same

I used a typical 5V 500mA power supply from my mp3 to wake the cells. I attached the voltage to each cell without detaching the cells. 5 seconds of voltage attachment rose the voltage of each cell from 1.72V to 2.9V. Now it charges like charm. I covered the back with a precision cut piece of thin black pvc and it is even better than new. Now I have more than 10+ hours of battery life in w10 pro2. Before going to surgery I tried everything but nothing worked.

Tanks a lot for the mod.

Thanks very much Pete.  After waiting about 2 months for mine to charge spontaneously, I finally opened up the unit, used a 5v 1a charger for 5 sec on each battery (still connected within the unit).  Worked like a charm.  It is now charging for the first time in its life --  up to 4% after ~10 mins.  Again, THANK YOU for a genuine solution for my formerly depleted NOS keyboard.

Update: The unit fully charged that same day and functions now as it was originally intended.

Hopefully you had a solution for your flight. I have found on international flights (with Singapore Air) there were power points under the seats so I could keep my surface running during a long haul.

Update - success!!

After months of keeping the tablet and cover charging the battery finally showed life today. I was using it away from a power source and was surprised (and delighted) to see that instead of 0%, my cover showed 33% charge. I am looking forward to getting it back on power soon to fully charge it. 

Keep trying!