How to Change Battery in 1 by One Doorbell

This guide walks you through the simple process of replacing the battery in your 1 by One doorbell. You’ll learn how to safely remove the old battery, install a new one, and test your device to ensure it’s working properly.

Key Takeaways

• Turn off power first: Always switch off the power at the breaker before handling your doorbell to avoid electrical shock.
• Use the right battery type: Most 1 by One doorbells use a rechargeable lithium-ion battery or standard AA/AAA batteries—check your model.
• Handle with care: Avoid touching circuit boards or connectors with wet hands or metal tools to prevent damage.
• Reassemble correctly: Make sure all parts snap back into place securely to maintain weather resistance.
• Test after installation: Press the doorbell button to confirm it chimes and connects to your app or receiver.
• Charge if needed: If using a rechargeable battery, plug it in fully before reinstalling for best performance.
• Keep spare batteries handy: Having extras on hand ensures you’re never left without a working doorbell.

Introduction: Why Changing Your 1 by One Doorbell Battery Matters

Your 1 by One doorbell is more than just a buzzer—it’s your home’s first line of communication with visitors, delivery drivers, and even potential intruders. Whether it’s a wired model with a backup battery or a completely wireless version, keeping that battery fresh ensures your doorbell stays reliable, responsive, and ready when you need it most.

Over time, batteries lose their charge. You might notice weaker chimes, delayed notifications on your phone, or the device going completely silent. That’s your cue: it’s time to change the battery. The good news? It’s easier than you think. This guide will walk you through every step—from identifying your doorbell model to testing it after installation—so you can get back to enjoying seamless doorstep security in under 15 minutes.

Whether you’re a DIY newbie or a seasoned home improver, this guide uses simple language, clear visuals (in your mind!), and practical tips to make the process stress-free. No special tools required—just a few minutes of your time and maybe a screwdriver.

Step 1: Identify Your 1 by One Doorbell Model

Before you start unscrewing anything, it’s crucial to know exactly which 1 by One doorbell you have. The company offers several models—some are battery-only, others are wired with battery backup, and a few even come with removable rechargeable packs.

To identify your model:

• Check the back or bottom of the doorbell unit for a label with the model number (e.g., “1byOne DB100” or “1byOne Smart Doorbell Pro”).
• Look at the original packaging or user manual if you still have it.
• Open the 1 by One app on your phone—many models display the device name under “My Devices” or “Settings.”

Why does this matter? Different models use different battery types. For example:

• Battery-only models typically use 2–4 AA or AAA alkaline batteries.
• Rechargeable models often include a built-in or removable lithium-ion battery pack (usually 3.7V).
• Wired models with backup may have a small internal battery that kicks in during power outages.

Pro Tip: Take a photo of your current battery setup before removing anything. This helps you remember orientation and placement when reinstalling.

Step 2: Gather Your Tools and Supplies

You don’t need a full toolbox—just a few basics:

• New batteries: Match the type and voltage specified in your user manual. For AA/AAA models, high-quality alkaline or lithium batteries last longer. For rechargeable units, use only the manufacturer-recommended replacement or original battery.
• Screwdriver: Most 1 by One doorbells use a small Phillips-head (#0 or #1) or flathead screwdriver. Some newer models have tool-free release latches—check yours first!
• Soft cloth or microfiber towel: To wipe down the doorbell face and prevent scratches.
• Optional: A small container to hold screws so they don’t get lost.

Safety First: If your doorbell is wired to your home’s electrical system (even if it has a battery), turn off the power at the circuit breaker before starting. This prevents accidental shocks—especially important if you’re working near water or in damp conditions.

Step 3: Remove the Old Battery

Now comes the fun part—getting inside your doorbell.

For Battery-Only Models (AA/AAA):

1. Locate the battery compartment—usually on the back or bottom of the unit.
2. Use your screwdriver to remove the securing screw (if present). Some models have a sliding cover that clicks open.
3. Gently pull out the battery tray or open the compartment door.
4. Note the orientation of the batteries (positive/negative ends)—take that photo now if you haven’t already!
5. Remove the old batteries and dispose of them properly at a recycling center (never toss alkaline or lithium batteries in regular trash).

For Rechargeable Lithium-Ion Models:

1. Look for a small release button or latch on the side or bottom of the doorbell.
2. Press the latch and gently slide or pop out the battery pack.
3. If it’s a built-in battery (not user-replaceable), skip to the troubleshooting section—you may need professional help or a warranty claim.
4. Handle the battery by its edges—avoid touching the metal contacts.

Important: Never force anything. If a part won’t budge, double-check for hidden screws or latches. Forcing components can crack plastic or damage internal circuitry.

Step 4: Install the New Battery

With the old battery out, it’s time to bring in the fresh power.

For AA/AAA Batteries:

1. Insert the new batteries into the tray or compartment, matching the + and – symbols exactly as the old ones were positioned.
2. Push the tray back into place until it clicks or sits flush.
3. Replace the cover and tighten the screw (don’t overtighten—just snug is fine).

For Rechargeable Packs:

1. If your battery was removable, plug it into a charger for at least 2–4 hours until fully charged (check the LED indicator—green usually means full).
2. Slide the charged battery back into the doorbell slot, aligning the connectors.
3. Press firmly until you hear a click or feel it lock into place.

Pro Tip: Label your new batteries with the installation date using a permanent marker. This helps you track lifespan and plan future replacements.

Step 5: Reattach the Doorbell to the Wall

If you removed the entire unit from the wall (common with wireless models), now’s the time to put it back.

1. Align the doorbell with the mounting bracket or screws on your wall.
2. Slide it down or press it firmly until it locks into place.
3. For screw-mounted models, reinsert and tighten the security screw (often located at the bottom) to prevent theft.

Weather Check: Make sure the doorbell sits flush against the wall to maintain its weather-resistant seal. Gaps can let in moisture, which damages electronics over time.

Step 6: Test Your Doorbell

You’re almost done—but don’t skip this step!

1. Turn the power back on (if you turned off the breaker).
2. Press the doorbell button firmly.
3. Listen for the chime inside your home.
4. If you have a smart model, open the 1 by One app and check for a live video feed or notification.
5. Ask someone to ring it from outside while you monitor the app for motion alerts or recordings.

If it works—great! If not, don’t panic. Move to the troubleshooting section below.

Troubleshooting Common Issues

Even with careful steps, things can go sideways. Here’s how to fix the most common problems:

Doorbell Doesn’t Ring After Battery Change

• Check battery orientation: Reversed batteries won’t work. Open the compartment and verify + and – alignment.
• Ensure full charge: Rechargeable batteries may need several hours to reach full capacity.
• Reset the device: Many 1 by One models have a reset button (small pinhole). Press it with a paperclip for 5–10 seconds, then reconnect to Wi-Fi via the app.
• Test batteries with a multimeter: Weak or defective new batteries happen. A reading below 1.3V for AA/AAA or 3.0V for lithium-ion means replace them.

App Shows “Offline” or “Low Battery”

• Re-sync the doorbell in the app: Go to Device Settings > Remove Device, then re-add it.
• Move closer to your Wi-Fi router during setup—weak signal causes connection drops.
• Update the app and firmware: Outdated software can cause false low-battery warnings.

Battery Drains Too Fast

• Reduce motion sensitivity in the app—high sensitivity triggers frequent recordings, draining power.
• Avoid extreme temperatures: Don’t install doorbells in direct sunlight or freezing garages if not rated for it.
• Use high-quality batteries: Cheap off-brands degrade faster.

Water or Moisture Inside the Unit

• Power off immediately and let it dry completely (24–48 hours in a warm, dry place).
• Check the seal around the mounting bracket—reapply silicone caulk if needed.
• Consider a weatherproof cover if you live in a rainy or humid climate.

Maintenance Tips to Extend Battery Life

Changing the battery is one thing—keeping it healthy is another. Follow these tips to maximize lifespan:

• Clean the sensor lens monthly: Dust and dirt reduce motion detection accuracy, causing unnecessary activations.
• Adjust notification settings: Turn off “All Motion” alerts and use “Person Detection” only to reduce battery drain.
• Schedule regular checks: Every 3–6 months, inspect the battery compartment for corrosion or loose connections.
• Keep spare batteries charged: Rotate them so neither sits unused for too long (lithium-ion batteries degrade over time, even when not in use).
• Update firmware regularly: Manufacturers often release updates that improve power efficiency.

When to Call a Professional

Most battery changes are DIY-friendly—but if you encounter any of these issues, it’s time to seek help:

• The battery is soldered in place or not user-replaceable.
• You smell burning, see melted plastic, or notice sparks.
• The doorbell is still under warranty (opening it may void coverage).
• You’re uncomfortable working with electricity or small components.

In these cases, contact 1 by One customer support or a licensed electrician. It’s better to be safe than sorry.

Conclusion: Stay Connected, Stay Secure

Changing the battery in your 1 by One doorbell isn’t just a chore—it’s a quick way to protect your home’s security and convenience. With this guide, you’ve learned how to identify your model, safely replace the battery, troubleshoot issues, and maintain your device for long-term reliability.

Remember: a working doorbell means you’ll never miss a package, guest, or unexpected visitor again. And by following best practices—like using quality batteries, testing after installation, and keeping spares on hand—you’ll extend the life of both your doorbell and its power source.

So next time your doorbell goes quiet, don’t ignore it. Grab a screwdriver, swap that battery, and restore your peace of mind in minutes. Your future self (and your front door) will thank you.