4.3 Backup battery
This device is equipped with a backup battery (rechargeable battery) for the clock.
The rechargeable battery is charged when the power supply of the main unit is turned on. Even when the power is turned off, the battery will be charged if an external power supply is connected.
The relationship between charging time and the duration of time the battery typically lasts is as follows.
It takes 24 hours to be fully charged.
| Charging time | Approximate battery power duration |
|---|---|
| 1 hour | 1 week |
| 12 hours | 3 months |
| 24 hours | 6 months |
- Use the AC adapter when connecting an external power supply for charging the battery while the power is turned off.
- The backup battery has a limited service life. Check the battery during inspection and calibration, and replace it if necessary (please contact your dealer).
Note
- The charging time, battery power duration, and battery service life vary according to the usage environment.
- If you use an old rechargeable battery, the battery power duration will be shorter.
