How to Replace a Battery in an HS850


The Motorola HS850 Bluetooth headset contains an internal rechargeable battery. This battery supports up to eight hours of talk time and 200 hours of idle time with your device, according to the Motorola HS850 user manual. Normally, if the battery is not working at full capacity, Motorola will have you mail in your HS850 Bluetooth for battery replacement. However, if your device is no longer covered under warranty, it may be cheaper for you to order a replacement battery and replace it yourself.

Things You'll Need

  • Knife
  • Cyanoacrylate adhesive
  • Slide a knife underneath the blue protrusion on the side of your Motorola HS850 headset. The gap between this blue piece of plastic is narrow, so you'll need a very thin knife to slide into underneath.

  • Gently wiggle the knife back and forth, working it underneath the blue plastic piece. You may need to wiggle the knife for several seconds before you make any progress. Do not get impatient and force the plastic piece off; this will cause cracks in the plastic. You will hear a pop as the plastic piece releases. This is normal.

  • Remove the loosened piece from your Motorola HS850 Bluetooth headset.

  • Remove the small battery from the center of the circular microchip in the middle of the exposed headset.

  • Insert the new battery.

  • Place the blue plastic piece back in position on your headset and press until you hear the latch click. If you pried the piece off using too much force, the latch could be broken. If this is the case, you will need to use a cyanoacrylate fast-acting adhesive to glue the piece back in place.

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  • Photo Credit Aaron Graubart/Photodisc/Getty Images
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