This guide is to provide you with an alternative method of powering the 2K battery doorbell. If you do not want to take off the battery doorbell for charging via USB cable, you can hardwire the 2K battery doorbell. 

I have the existing wires...

To hardwire the battery doorbell, you can see details from Appendix 3 of the Quick Start Guide (from page 19). 

The voltage requirement of the 2K battery doorbell is 8-24VAC, 10VA or above. What you need to do is to connect the existing doorbell wires to the terminals at the back of the doorbell, then tighten the terminal screws. The wire can connect to any terminal. 

Notes:

• To prevent short-circuit, make sure the wires are not touching each other after connecting them to the terminals.
• If the wires are too short, use the extension wires and wire nuts provided to make them longer. Use electrical wiring tape instead if there is no more space on the wall for wire nuts.

I do not have existing wires...

If you do not have the existing wires, you can purchase a doorbell power adapter for continuously charging. Here are the lists of compatible power adapters: 24V/500mA, 18V/500mA, 16V/800mA.

If you have any questions, please contact us for further assistance.