Ajax LeaksProtect: original replacement battery
The right batteries for your LeaksProtect (water detection). The same AAA type that Ajax pre-installs, so you keep the stated battery life and reliability.
Fit them again within a few minutes: battery cover open, old cells out, new ones in, cover closed. The hub and the Ajax app report by themselves, well in advance, that the battery is almost empty.
Technical specifications
| Battery | |
| Type | AAA |
| Quantity | 2 pieces |
| For device | Ajax LeaksProtect |
| Service life (manufacturer's specification) | up to 5 years |
| Pre-installed type | Yes, original Ajax type |
How to replace the battery
Step by step according to the Ajax manual:
- Switch off the detector.
- Loosen the screws.
- Remove the front panel of the LeaksProtect and replace both AAA batteries; observe the polarity.
- Put the back panel back and tighten the screws.
- Switch the device on and check the battery status in the Ajax app. The status does not update immediately, but after the next ping (every 36 seconds by default).
Would you like the manufacturer’s original instructions with photos? View the Ajax manual.
Frequently asked questions
Is this the same battery as the pre-installed one?
Yes. Ajax supplies the Ajax LeaksProtect with AAA batteries pre-installed. With the same type you keep the battery life stated by the manufacturer (up to 5 years).
When should I replace them?
Your Ajax app and Hub give a low battery notification well in advance. Then replace all cells at the same time with this exact type. The manufacturer's specification is up to 5 years, depending on use and settings.
How many are in this pack?
2 pieces AAA, exactly enough for one LeaksProtect.





















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