You can connect any battery with an operating voltage of 8–16 V⎓ to Ajax NVR using 12V PSU for NVR.
For long battery life, we recommend using lead-acid, lithium, and nickel-metal hydride batteries. Zinc-air alkaline batteries are not recommended.
To prevent critical discharge of batteries without built-in control and protection boards, enable the operating mode in the voltage range of 12.1-16 V⎓. To do this, install a jumper on the 12V PSU for NVR board. Depending on the operating mode, the voltage is:
| Parameter | Without an installed jumper | With an installed jumper |
| Turn-on threshold when the voltage rises | 8 V⎓ ±3% | 12.1 V⎓ ±3% |
| Turn-off threshold when the voltage drops | 6.65 V⎓ ±3% | 10.6 V⎓ ±3% |
| Maximum permissible supply voltage | 16 V⎓ | 16 V⎓ |
You can calculate the approximate battery life using the external battery life calculator.