Battery Problems

[Silverstar]

The Nextbase cameras have the drain protect circuit integrated, not sure if its in the cable or camera but either way before the software update it was a problem, afterwards it was fixed!
What make/model camera do you have and do you have that manufacturers hard wire kit?
When you say completely disconnected do you mean at the fuse or you just pulled the plug on the camera?

I have a Viofo A119 connected via their hardwire kit which has a battery saver built in and I switched the saver to switch off power to the camera at 12V (it's selectable between 11.8V and 12.2V) I know it works because after two or three days with the car being parked up the camera was off. However just to be sure yesterday I disconnected the camera by unplugging it.

 

[Smartbear]

I have a Viofo A119 connected via their hardwire kit which has a battery saver built in and I switched the saver to switch off power to the camera at 12V (it's selectable between 11.8V and 12.2V) I know it works because after two or three days with the car being parked up the camera was off. However just to be sure yesterday I disconnected the camera by unplugging it.

That could still lead to a parasitic battery drain if the transformer is before the plug in the circuit :?
Rob