https://community.arlo.com/t5/Arlo-Pro-2/Battery-USB-Issues/m-p/1665272#M19934 <P>I have 4 cameras installed in a workshop. All was working fine untill I connected 2 of them via a long USB cable, I left the battery in and just connect a general USB unit as the is only one included in the package while there are 4 cameras is the box. Now the 2 connect to the power are offline and no longer connected. There was one message that the battery need to be replaced. What am I doing wrong?</P> Thu, 03 Jan 2019 17:02:11 GMT Kthijs74 2019-01-03T17:02:11Z https://community.arlo.com/t5/Arlo-Pro-2/Battery-USB-Issues/m-p/1665272#M19934 <P>I have 4 cameras installed in a workshop. All was working fine untill I connected 2 of them via a long USB cable, I left the battery in and just connect a general USB unit as the is only one included in the package while there are 4 cameras is the box. Now the 2 connect to the power are offline and no longer connected. There was one message that the battery need to be replaced. What am I doing wrong?</P> Thu, 03 Jan 2019 17:02:11 GMT https://community.arlo.com/t5/Arlo-Pro-2/Battery-USB-Issues/m-p/1665272#M19934 Kthijs74 2019-01-03T17:02:11Z https://community.arlo.com/t5/Arlo-Pro-2/Battery-USB-Issues/m-p/1665312#M19945 <P>A normal USB only puts out 5v.... the Pro/Pro2 require a qualcomm type adapter ( like one supplied ) that put out 5v and 9V.</P> <P>5v to run and 9v to charge</P> <P>The 9v is required to charge the battery pack in the camera ( charges to 8.4v ).</P> <P>&nbsp;</P> <P>So the only thing I can think of is the long run lowered the voltage to the camera ( so it was not enough to run ) and the battery drained</P> <P>&nbsp;</P> <P>Use the supplied orignal adapter without an extension cable and recharge/test one of the cameras</P> Thu, 03 Jan 2019 17:02:23 GMT https://community.arlo.com/t5/Arlo-Pro-2/Battery-USB-Issues/m-p/1665312#M19945 TomMac 2019-01-03T17:02:23Z