About: I"ve studied electronics ago in the days in my high institution. Today it is sindicate a hobby. More About FireSword »

Hi Everyone!

I determined to post my little bit projects right here instead of my blog, so that they deserve to reach and aid more people. This is my first Instructable.

My frifinish lugged me his tablet. The USB socket was not OK, more than likely damaged by his son. The tablet makes a stselection noise as soon as you try to charge it, and my power financial institutions shut dvery own, which mirrors a bad short circuit somewhere.

The USB plug is so little, that even with a magnifying glass I can"t view a point, everything is covert, attached to the multilayer board. Hot gun does not help!

So I decided to use a charging board choose this http://www.ebay.co.uk/itm/301905672102?_trksid=p20...

You are watching: How to charge a tablet battery directly


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Step 1: Using the Charger Board


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9 Comments


0
Stewie18

Inquiry 10 months earlier on Introduction


AnswerUpvote

I have actually a 7" tablet, I bought in 2012. My charger recently broke dvery own, so I tried wiring up a replacement charger, however when I plugged it in, the tablet quit charging. The tablet powers up, but won"t charge anyeven more. Did I fry somepoint on the circuit board? And If so, just how deserve to I charge the battery? Thank you.


0
prasathsai24

10 months earlier


ReplyUpvote

How long does it take to full charge the battery?How lengthy have the right to you usage it?


0
anthonyls6

4 years ago


ReplyUpvote

choose it. basic and also great for me because I am a super newbie at all of this. my ladys phone is doing the exact same point via component so I"ll try this.ty


0
ironsmiter

4 years ago


ReplyUpvote

I wonder if you put the charge circuit in parallel through the old circuit...

It SHOULD proceed to register a charged battery just prefer normal. If not, possibly a set of diodes on the charge circuit lines would certainly proccasion residual voltage bleeding, and also offer precise battery monitoring back? I THINK most tablets monitor actual battery voltage, so must check out appropriately when calibrated with a complete charge/discharge/charge cycle. As lengthy as namong the surveillance traces have been damaged.

One of the circuit gurus may have a different opinion. however it is a place to start, if you desire to attempt on the next settle.

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1 reply
0
FireSwordironsmiter

Reply 4 years ago


ReplyUpvote

Thanks for your reply. I assumed tools monitor baterry standing 0-100% by measuring the voltage - let"s say 3,2-4,2V , not sure. Perhaps they don"t execute exactly that. At initially I thneed to put the charging in paralell, however I can"t watch any kind of totally free metal components where I have the right to solder. That is the reason I did not resolve the original socket.

Besides, if I put it in parallel the short circuit which I observed will certainly stop it from working properly.