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August 22nd, 2017 06:00

Dell Venue 7840 Power off issue

Hello, I am facing the issue where my Android tablet powers off while the battery is not yet empty.

I first noticed it a few weeks ago and it turned off at 23% remaining battery, then progressively went worse and worse, up to 54% and currently 71%.

I tried the 2 things you suggested in another post:

-diagnostic says all is ok and battery health is in the green

-wipe cache via the recovery menu didn't help

What should I do next?

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16.7K Posts

August 22nd, 2017 10:00

Starzend,

Contact Dell Support at 1-800-624-9896 for advanced troubleshooting.

2 Posts

October 25th, 2017 19:00

I had the same problem but not anymore. What I did was I left mine untouched for, in my case, at least 2 months. Mine used to shutdown at around 45%.  After that, I made sure that it was not able to start at all then charged it till 100%. Thank God it works just fine more than 2 months now

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