Electronics > Beginners

Lifted pad for battery circuit

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Mp3:
Hey everyone,

I got an older device here I am repairing. The previous owner tried to replace the solder type battery and seem to have lifted the pad to the negative side of the battery terminal. It uses a 3.7v lithium battery for the SRAM. The SRAM contents aren't saved when power cycling, so i went to check the battery voltage and it was reading 3.5, so that is no problem. I then inspected on the other side of the PCB and found the lifted pad.

The track from the negative side of the battery seems to lead to one side of a 2N4401 transistor "Q7"

Do you guys think I could tie a wire between the  battery leg and transistor leg? I know to be very careful with heat on the battery leg.

Normally i would try without asking but since a battery is involved, i don't want to cause a problem.

Thanks everyone :)

6PTsocket:
Yes. I have bypassed lifted pads and lands with a short piece of wire or glued the land back down with epoxy or a good cyanoacrylate (industrial crazy glue). Just use flux and work quick.

Sent from my SM-G900V using Tapatalk

Terry01:

--- Quote from: 6PTsocket on September 02, 2018, 02:16:35 pm ---Yes. I have bypassed lifted pads and lands with a short piece of wire or glued the land back down with epoxy or a good cyanoacrylate (industrial crazy glue). Just use flux and work quick.

Sent from my SM-G900V using Tapatalk

--- End quote ---

LOL I like that!  ;D

Mp3:
Cool, thanks guys, i was mostly worried a wire between the battery and transistor might cause something unwanted to happen. I'll go ahead and make that connection 8)

Terry01:
A nice pic of the finished results would be cool??  :)

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