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| + | [title] Charging Lead Attachment |
|---|---|
| + | [* black] With the earpiece removed, we can get access to the battery charging terminals. Identify the location of the cell positive and negative terminals. |
| + | [* black] The negative terminal (cell ground) is a large soldered tab. The positive terminal is the second lead from the square IC chip. |
| + | [* black] Remove the silastic wire bonding to expose the ground and positive lead. De-solder and tape back the cell positive ground to protect the unit's electronics from the charging current in the next step. |
| + | [* black] Solder appropriately colored wires on to the two terminals. |
| + | [* black] Check battery voltage, it should be at or near 0V. |
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