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I was opening a Toshiba Excite 7 tablet which stopped charging. Tablet turns on without issues when battery is not connected, but does not when it is present.

I decided to check the little pcb circuit of the battery and i "sliced" around 2 centimeters of the plastic that "hugs" the innards of it. At first i did not realize I was just in the innards. It is not punctured, but i did discovered solvent smell from the battery right were i sliced the plastic.

If i want to connect this battery to the tablet and try charging it, what could go wrong?

enter image description here

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  • \$\begingroup\$ Batteries have warning labels saying not to mistreat them for a reason. Stop what you're doing before you hurt yourself. \$\endgroup\$ – Matt Young Mar 29 '16 at 20:44
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    \$\begingroup\$ It's not punctured? You jabbed its entire head off! I can see the barrier foil! \$\endgroup\$ – Asmyldof Mar 29 '16 at 20:56
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    \$\begingroup\$ "What could go wrong?"..famous last words? \$\endgroup\$ – Gonzik007 Mar 29 '16 at 20:59
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    \$\begingroup\$ @Mascareño Lithium battery puncture test. Notice the shield and other precautions. \$\endgroup\$ – Nick Alexeev Mar 29 '16 at 21:05
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    \$\begingroup\$ You have already invited gasses and moisture into your battery. Anything you do now to close it back up is just turning it into a hand grenade, rather than a blow torch. \$\endgroup\$ – Asmyldof Mar 29 '16 at 21:26
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Once you smell the solvent the pack goes to Chemical Recycling, however hard that may be in your local region. Period. No using, whatsoever. Ionic exchange in the batteries can create hydrogen gas. (Edit: Which is infinitely more likely with moisture from the air you just let in)

Especially when the environment is no longer hermetic.

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  • \$\begingroup\$ I'll dispose of the battery properly. Thanks for your answer. Fascinating how batteries work, i'll dig a little bit more on the chemical aspect you pointed out. \$\endgroup\$ – Mascareño Mar 29 '16 at 20:59

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