How to replace the battery
The battery is 2032 lithium and readily available in many convenience stores. Here are steps to replace a drained battery
use a small Philip head screwdriver to remove the four screws (the screws are tiny, please keep them in a container)
take out the circuit board and use a non-conductive tool (a toothpick or popsicle stick for example) to slide the battery out
 insert in a new battery. Please Note the positive is at the spring side of the battery holder
Put the circuit board back into the case and reinstall the four screws. Please make sure the chip is facing up or close to the metal surface with "BraceWyse" text, and do not over tighten the screws
