Battery replacement

[blackbeagle2004]

I replaced the original battery over a year ago. I bought a new one off Ebay from a reputable reseller. As of 12+ months later, the battery is not giving me a lot of charge. Last night I went to bed with a 95% charge. I was in bed watching YouTube, Facebook, Kodi, etc. Within 2 hours, it was down to 15%. I am wondering if there's an app out there that takes measurements of the battery, to see if it's holding a proper charge. I can certainlly replace the battery again, but I want to know for sure if this thing is shot or not.

Also on a different topic, my headphone jack is also shot. When I plug in a headphone, it crackles on one side and I can only hear on one side. If I jiggle the headphone plug in by the jack, it will be good on both ears. I actually ordered a headphone jack, but it was the wrong fit. WOndering what options do I have. Can the current headphone jack be fixed?

 

[B. Diddy]

Welcome back! Do you routinely allow the battery to drain to <10%? If so, that can significantly reduce a battery's overall lifespan. (Sorry, I don't have an answer for you about apps that measure battery.)

Have you already tried multiple different headphones, and does the same thing happen with all of them?

 

[nahoku]

After-market (non-OEM) batteries will never perform as well as the original... IMHO, that is. 12 months ain't bad given it's non-OEM. I also don't know of any app that can measure voltage/current drain on a battery in real time. I don't think one exists... and if you happen to find something it's probably not going to be accurate as to measure something like this, it needs to be in-circuit, and not a calculation.

As for your headphones, it's called corrosion. More than likely the contacts of the tablet jack are dirty, thus moving the headphone jack fixes the issue somewhat. You can try using scotchbrite on the headphone jack to clean it up. No need to use too much pressure while cleaning the jack... just shine it up a bit. For the tablet receptacle, use some 90%+ alcohol and a q-tip to clean it. Make sure to remove most of the q-tip cotton so you don't have to force the q-tip into the jack or you might misshape the contacts, and possibly get some cotton stuck in the jack. Shouldn't take much work to clean it up a bit... just go slow and easy and don't drench the q-tip with too much alcohol. Do NOT use 70% rubbing alcohol as it contains 30% water.

 

[Dale_M]

Clean headphone plug with light wiping with rough cloth, no need to be aggressive, get a small tube of "light bulb grease" (dielectric grease) from hardware store lighting dept and put ever so small coating on plug, (not to much as it will get messy)... Insert and remove plug into jack (tablet side) several times and it will clean and put light coating of grease on contacts and prevent corrosion as it prevents oxygen in connection and the corrosive effect of dissimilar metals in contact with each other...

Also works really good on contact for flash light batteries and battery in your mouse and on those pesky problem bulbs in you car and and surprising keeps light bulbs from getting stuck in socket in your home fixtures...

Dale