kamkar
Well-Known Member
- Joined
- Oct 11, 2013
- Messages
- 34,578
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- Country
- Denmark
- Dash Cam
- 10 years, many dashcams
if you have the room in your car you can put a #2 car battery in it, and have it isolated from the original battery so it only get charged when driving and you cant discharge your original battery.
This is what i would prefer, but to do that is a bigger job than i can handle, not least with no access to a welder as i would have to put in a #2 tray for the #2 battery in the engine bay, but other than that my little Suzuki have room for another battery, due to it being a bottom line model and so don't have any AC, and the lack of that in the engine room are why i have the room for a second battery out there.
I can even replace the original 45Ah battery with a 80 - 90 Ah one, but again this will need tools and materials i don't have access to, but other than that i could do that too no problem.
I would not go lower than 12.2 V for cut off value, and really lead acid batteries you don't want to deep discharge,,,, but you can get other types of car batteries that will handle deep discharge much better, but with a very low on voltage battery you can not start your car, but for a #2 battery only feeding a camera or something else that would be nice.
Yes i believe the 12 V to 5 V happen in the little box on the hard wire kit, the cut off just work on the 12 V side of things inside that little box.
I remember my Mitsubishi L200 pickup had 2 batteries, one for starting i assume and the other one for all other things, and i assume the 2 was split up in a way discharging the #2 battery would not mean doing the same to the start battery.
This is what i would prefer, but to do that is a bigger job than i can handle, not least with no access to a welder as i would have to put in a #2 tray for the #2 battery in the engine bay, but other than that my little Suzuki have room for another battery, due to it being a bottom line model and so don't have any AC, and the lack of that in the engine room are why i have the room for a second battery out there.
I can even replace the original 45Ah battery with a 80 - 90 Ah one, but again this will need tools and materials i don't have access to, but other than that i could do that too no problem.
I would not go lower than 12.2 V for cut off value, and really lead acid batteries you don't want to deep discharge,,,, but you can get other types of car batteries that will handle deep discharge much better, but with a very low on voltage battery you can not start your car, but for a #2 battery only feeding a camera or something else that would be nice.
Yes i believe the 12 V to 5 V happen in the little box on the hard wire kit, the cut off just work on the 12 V side of things inside that little box.
I remember my Mitsubishi L200 pickup had 2 batteries, one for starting i assume and the other one for all other things, and i assume the 2 was split up in a way discharging the #2 battery would not mean doing the same to the start battery.