How to change the battery in a Health o Meter HDR743 digital bathroom scale? 

 October 9, 2021

By  Phil Borges

If you're looking for a way on how to change the battery in a Health o Meter HDR743 digital bathroom scale, we have just what you need. The process is quick and easy with these helpful instructions that will take you through each step of the process. 

How to change the battery in a Health o Meter HDR743 digital bathroom scale 350 lb capacity?

The Health o Meter HDR743 digital bathroom scale has become a staple in many homes. It is an affordable, easy-to-use device that can provide valuable health information. One important thing to remember about this device is the battery needs to be replaced occasionally. It is best that you know how to replace its battery so that it will continue to function as intended.

Step 1: Flip over the digital scale carefully and place it on a flat surface. You may place a towel or protective cover to protect the scale from getting scratched during this process.

Step 2: Find the battery compartment at the back of the scale. Push the small tab on it and remove the battery cover.

Step 3: Take out the old battery from the compartment and disconnect the two connectors. The battery is connected by two metal clips that are attached to the sides of the device's circuit board. Make sure you don't tear any wires or bend the connectors in any way.

Step 4: Grab your new battery, reconnect the terminals to each corresponding connector and slide the battery into its compartment carefully.

Step 5: Reattach the battery cover and firmly press it down until it clicks in place. Turn on the scale and see if it is working properly.

How do you know when your Health o Meter digital scale needs a new battery?

When your Health o Meter shows a 'LO' message on the screen display, it is time to change the battery. Other signs that you should change the battery are when your Health o Meter scale is not turning on, or it is taking a long time to turn on.

When replacing the battery, make sure that you are using the recommended battery for your scale. This Health o Meter HDR743 digital scale uses a 9-volt battery. This type of battery is available at hardware stores, department stores, and online retailers such as Amazon.com.

On average, the battery in a Health o Meter digital scale should last for ten long years with proper use. This makes the battery very cost-efficient, as scales can be expensive investments for many people and families.

What causes a Health o Meter digital scale to give inconsistent readings?

The scale may be giving inconsistent readings for various reasons, and some of these are

  • The most common reason is that the scale has a dead battery that needs to be changed. It is recommended to use Energizer or Duracell batteries for this scale model.
  • Placing the scale on a carpet, mat, or uneven surface that is not flat. Make sure to have a flat area where you place the Health o Meter digital bathroom scales.
  • Faulty scale sensor.
  • The scale is out of calibration.
  • The load cell cable is loose or disconnected from the scale.

What are the steps you can do to prolong the battery life on your digital scale?

First and foremost, avoid exposing the scale to extreme temperatures. For example, don't leave it in a hot or cold car for too long.

Place the digital bathroom scales on hard surfaces so that you can maximize their accuracy by avoiding vibrations during measurements.

If your batteries are already bad and they need replacement, then what should be done is to follow the guidelines listed in this article, or you may refer to the manual that comes with your specific digital scale. This way, you will easily know how to change them or remove and replace them.

It's also important that you check your batteries are correctly installed so there won't be any problems with it in the future when using your digital scale.

Make sure you always store the digital scale properly and calibrate its weight reading regularly.


It is important to understand how your digital scale functions because this will help you better use it. If the readings are inconsistent, there might be a problem with the battery, or if it's not reading at all, then check for power and make sure that both feet are touching the device when in use. Changing batteries can also solve some problems, but sometimes an issue may be more complicated than just changing one battery, so when this time comes, get in touch with Health o Meter customer service. They are the experts on this field and can help you with whatever problem you might be experiencing with your digital scale.

About the author

Hi, I'm Phil Borges.. thanks for reading.. My wife says I can't shut up about batteries so to save my marriage I've started this blog .. where I'd be ranting about batteries! Please leave a comment if you have any questions, I'm happy to help!

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