AnodizedBear
New Member
- Joined
- Apr 11, 2021
- Messages
- 8
- Reaction score
- 2
- Location
- Queensland
- Country
- Australia
- Dash Cam
- Viofo A119, Blackvue DR-750S-LTE, Viofo A139
That's awesome. I found a battery with an in-built BMS from a reputable retailer in Australia called Battery World. I think this would be awesome, as the camera is the only thing I want to power. It's just for a small hatchback car, so space is at a premium.
I found another thread on here which shows the measured draw of the Viofo A129 dual camera to be 2.23W using the front and rear camera at the low powered parking mode while parked. This low powered mode takes video at 5 frames per second (fps) as opposed to 30 or 60fps while driving. However, that's measured from a nominal 5V USB output. At 12V that would equate to 0.185AH, BUT.. Naturally, there's going to be overhead between the 12V to 5V conversion. Although I don't know how much... So, I think your allowance for 0.5AH gives some generous overhead for the 12V to 5V conversion overhead.
I've already hard-wired my Blackvue DR-750S 4G camera, so I had a little bit of experience with this already. Very disappointed to find out that the hardwire kit doesn't come with support for the manufacturer's battery pack, as this requires a 9 amp draw, and the cables that come with it are clearly too small for that kind of amperage. Edit: Getting rid of the Blackvue as it's event recording sucks - Best you can do is throw you hand across the camera and it'll manually save the last 5 seconds and the next minute.. I loved my previous Viofo A119 so much that I decided to upgrade to the A139.
Just wanted to say thanks for your advice. Been trying to figure out how this is going to work for weeks now.
Picture credit: Gabilondo77
I found another thread on here which shows the measured draw of the Viofo A129 dual camera to be 2.23W using the front and rear camera at the low powered parking mode while parked. This low powered mode takes video at 5 frames per second (fps) as opposed to 30 or 60fps while driving. However, that's measured from a nominal 5V USB output. At 12V that would equate to 0.185AH, BUT.. Naturally, there's going to be overhead between the 12V to 5V conversion. Although I don't know how much... So, I think your allowance for 0.5AH gives some generous overhead for the 12V to 5V conversion overhead.
I've already hard-wired my Blackvue DR-750S 4G camera, so I had a little bit of experience with this already. Very disappointed to find out that the hardwire kit doesn't come with support for the manufacturer's battery pack, as this requires a 9 amp draw, and the cables that come with it are clearly too small for that kind of amperage. Edit: Getting rid of the Blackvue as it's event recording sucks - Best you can do is throw you hand across the camera and it'll manually save the last 5 seconds and the next minute.. I loved my previous Viofo A119 so much that I decided to upgrade to the A139.
Just wanted to say thanks for your advice. Been trying to figure out how this is going to work for weeks now.
Picture credit: Gabilondo77