Tapo Smart Lock Battery Flat, Forgot Password or Won't Open?
Battery flat, forgotten password, dead keypad or locked out after too many wrong tries: what to do with your Tapo lock, step by step, and how Uncle Thomas can open it, damage-free wherever possible.
- Since 1998
- 24/7 islandwide
- Damage-free first
The short answer: The DL100 has a USB-C port on the outside unit. If the batteries die, power the lock from a power bank, or from a phone that can supply power out. If that doesn't work, call or WhatsApp 9224 9224, any time.
Tapo smart locks in Singapore
Tapo is TP-Link's smart home brand. Its Tapo DL100 Wi-Fi smart lock offers keypad, app, Bluetooth and voice-assistant control, and appeals to Singapore owners who already use Tapo cameras and plugs.
Tapo smart lock battery flat? How to open it from outside
The DL100 has a USB-C port on the outside unit. If the batteries die, power the lock from a power bank, or from a phone that can supply power out.
The DL100 comes with two backup keys.
Tapo smart lock battery replacement
The DL100 takes four AA (LR6) batteries. TP-Link quotes up to 7 months in Wi-Fi mode and up to 10 months in Bluetooth-only mode at 20 unlocks a day.
How to change the password on a Tapo smart lock
Up to 200 keypad codes can be added, changed and removed in the Tapo app.
How to reset a Tapo smart lock
The reset button is on the inside unit. Resetting removes the lock from your Tapo account, so do it from inside only.
Repeated wrong codes trigger a temporary keypad lockout.
Tapo smart lock not working? Common problems
| Your Tapo lock | Likely cause | What to do |
|---|---|---|
| Keypad completely dark | Batteries flat | From outside, power it from a power bank through the USB-C port outside. Then replace the batteries from inside. |
| Accepts the code but the latch won't turn | Weak batteries, or a mechanical fault in the lock body | Try emergency power once. Don't force the handle: that's how lock bodies break. |
| Refuses a code you know is right | Privacy mode set from inside, or the wrong-code lockout | Repeated wrong codes trigger a temporary keypad lockout. |
| App shows offline or can't connect | Wi-Fi, hub or Bluetooth | Use the keypad or fingerprint at the door: the Tapo lock works without the app. |
Wi-Fi drains batteries faster. If yours run down quickly, Bluetooth-only mode lasts longer.
A typical Tapo call
This is the kind of Tapo call we often get: A Tapo DL100 owner keeps the lock on Wi-Fi for remote access, and the batteries drain faster than expected. The lock dies one evening and both backup keys are inside. We get them in, and they switch to Bluetooth-only mode on weekdays.
What's different about Tapo locks
Tapo locks fit into TP-Link's smart home app with cameras and plugs, and can be controlled by voice assistants. Wi-Fi convenience costs battery life.
Tips for Tapo owners
- Use Bluetooth-only mode if you want longer battery life.
- Keep a USB-C cable and power bank for emergencies.
- Store one of the two backup keys outside the home.
- Review your 200-code list now and then and delete old codes.
Still locked out?
Call or WhatsApp 9224 9224, 24/7. We open Tapo locks damage-free wherever possible, confirm the price first and check ID before opening. A failed Tapo lock can be replaced. Independent, not affiliated with Tapo. See also: digital lock battery dead · forgot your PIN.
Sources: Tapo DL100 product page (TP-Link). Checked October 2026. Features vary by model: always check your lock's own manual.
Related brands: Ezviz · Lockly · Igloohome · Aqara · Prism+ · all digital and smart lock brands
Tapo Smart Lock FAQs
How do I open a Tapo DL100 with dead batteries?
Connect a power bank, or a phone that supports power output, to the USB-C port on the outside unit. Or use one of the two backup keys.
How long do Tapo smart lock batteries last?
TP-Link quotes up to 7 months in Wi-Fi mode and up to 10 months in Bluetooth-only mode at 20 unlocks a day.
How do I change the password on a Tapo smart lock?
Up to 200 keypad codes can be added, changed and removed in the Tapo app.
How much does it cost to open a Tapo smart lock?
It depends on the model and what's wrong. We confirm the price before we come: WhatsApp a photo of the lock (front and inside if possible) to 9224 9224.
Do you repair Tapo smart locks?
No, we don't do repairs. We open the lock, and if it's faulty we can replace it. For warranty repairs, contact Tapo or your retailer.
Locked Out by Your Tapo Lock?
Call or WhatsApp Uncle Thomas — 24/7, islandwide. We set off as soon as you call.