My tablet wont charge properly

It could be the battery needs to be replaced or the charger is not working and you need a new charger for your tablet.

Optimus dying on charger/charging backwards - Android Forums at ...

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Aug 2, 2012 - 11 posts - ‎8 authors
Lately my Opti s hasn't been charging correctly sometimes it won't charge I tried different chargers and i use three batteries two that are brand ... LG G2: Battery and Charging problem- super annoying.
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hope this helps you ;)

there are most likely two things that are wrong with your tablet, 1. your battery is worn out or your charger/chargers might be worn out.Try plugging your tablets charger back in while its off and then turn it on. If that doesnt work then try the pinhole reset button while the charger is plugged in. Since your charger might be faulty have a professional check for shorts in the charger. if none of these work consider replacing the battery, the charger, or the tablet itsself. if this doesnt help you i apologize for wasting your time with answers that are incorrect or answers that you may have tried before.

Hi! Hope this may serve as a hint. When power problem dooms to any electronic device needing battery operation we sometimes least assume that the battery life is near to its end. I mean its charging life has come to end. However, you can sometimes recycle it's life cycle by discharging fully and recharging fully without using it. Battery utility softwares can help monitor its life but cannot revive at all. Charging also using fast charger and or slow charger can help reactivate the battery cells. I personally experience, a gadget of mine its charging life is almost come to end and when I accidentally plug it on my laptop with 3.0 USB offline charging capability it somehow raise its life but not as good as it is. If the above doesn't work at all, it's time to change the battery pack. Goodluck!

First make sure your charger is working properly. Check it with a volt meter or use a friends charger that you know is working. Charge your Coby Kyros for 4 hours. Use a small needle and gently insert in into the "reset" hole on the back cover on the left side. Hold it down for 5 seconds then release. Try restarting your tablet. If these don't work, you will have to get professional help to check it out.

Possible charger damage.
If you know someone with a charger you could use, you should first plug their charger into your unit to see if it works, if not, plug your charger into their unit.
If your unit will not charge with new charger, you may have serious damage, if the other will not charge with your charger, your charger is broken.

http://androidforums.com/asus-eee-pad-transformer/615796-tablet-doesnt-charge.html

try buying new tablet or charger as back up but also sometimes if my tablet will not charge like urs i just re plug it in . but before back ups try new ac adapter thingy

The charger can be tested for proper voltage coming out in most cases- either the battery is bad, the charger, or the connection where the charger connects to the unit.