Introduction
Tools
Parts
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Try to ensure all batteries are drained to below 15%. This reduces the risk of nasty surprises if the batteries are damaged during removal.
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Gently press a razor blade into the seam around the bulb on the ear bud.
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Take care to follow the seam because the razor can easily go off track and cut a little slice of plastic from around the seam.
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Allow the razor to cut no more than 1mm into the seam around the whole bulb.
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If necessary, run the razor a little deeper around the whole seam until the cap can be pulled off.
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The battery cell inside is held in with red glue.
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A little heat helps soften the glue. Use a heat gun or hair dryer.
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The glue can be gouged out with a screwdriver until the battery can be convinced to pull out.
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Take care not to short-circuit the battery.
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The new battery can simply be pushed into position.
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Use B7000 or any similar rubbery glue that has a needle applicator - apply around the seam and close the earbud.
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Wrap a rubber band around the bud until the glue has fully cured.
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One comment
my one started distorting lhs. I had to open it to fix the membrane in place. Not quite the same as this tutorial but it helped me to find how to open it.