I made a 5 volt UPS for my camera to use it as dashcam and I’m sharing it with you!
I build it for 8 vehicle so I bought my items in set. That’s helped to keep the costs little down.
The battery is cheaper if you salvage it from brand new power bank !
It my not be efficient because of some repeating job on this two board but it’s good enough for my project.
The camera last over 3 hours with motion detection on pointing to busy office space with single li-on battery which giving our fleet manager way more than enough time to check road footage when the driver get back to office and and turn off the vehicle. There is no interruption for camera functions even when the vehicle is starting or turning off because I have Uninterrupted Power Supply.
This will work on all devices who power up by USB.
Cost: $2.5 18650 battery + $1.5 DC Voltage Regulator + $2 DC UPS + $0.67 Connector = $6.67
- $2.5 battery (At Amazon has 4 18650 3.7v 7.4wh battery in it for $9.99| similar one )
- $1.5 DC Voltage regulator
*$2 DC UPS | $8 for 5pcs
This is how I wired this together.
I cut a MicroUSB to Female USB cable in half and wire the female to UPS output and the micro to Converter so it’s gonna be easier to diagnose and fix later on and the camera will plug to my UPS.