Battery Backed-Up 14 V3 cams and Internet Communications

Setup my outdoor cameras on Battery Backup that will keep 14 V3 cameras, 3 Wireless Access Points, 3 VOIP lines and Cellular router running for approximately 24 hours.

Have a 100Ah battery connected to a power supply/charger that powers my network and cameras, ran outdoor lighting direct burial low voltage cable to the cameras carrying the battery 12 volts.

Then at each camera the voltage is regulated down to 5 volts using a 12v to 5v Micro-USB adapter cable. (this adapter will work with a input as low as 9 volts, so any voltage drop on long cable runs is covered) Amazon Link to 12v to 5v Micro-USB adapter cable

Each cable run from power supply / battery is fused for safety at 1, 2 or 3 amps depending on number of cameras on that wiring branch.

Power Supply Charger out of e-wasted equipment, Battery 100Ah, and Low Voltage Disconnect module,

This location originally had a V2 in an enclosure, the 12v to 5v adapter has been exposed to rain, snow, and heat of summer for over 2 years. Recently replaced V2 with a V3


At 18 hours I am at 50% state of charge on the battery and low voltage shutdown has been set to 35% (11.8 volts) to protect battery life.

May have to add another 100Ah battery as my target is to have close to 2 days battery backup for network and cameras. My Alarm panel with comms is less power hungry and lasts nearly a week on it’s 100Ah battery system.

Edit: Run time test ended at 21.5 hours when low voltage disconnect activated, will need to add another 100Ah battery to get to my target run-time.
Probably adjusting cameras detection will help too with less uploads to AI analysis.

Any reason you are not using solar to power the system?

I have solar on 2 cameras on my driveways.

The other 14 cameras run on A.C. power and run on battery backup if power is lost. Living in California Sierras power does go out from time to time. And with PG&E (electric utility) the power gets shutdown during certain weather events too.

I guess I could add solar to that, but the need was to have the cameras and network up until I get back to start generator.

The cameras I have on solar took 2 x 100 watt panels and battery to keep up, most the year it has excess power but in winter the direct sunlight for solar is less than 4 hours. In the winter it has shutdown due to LVD because of not enough sun.