I just installed a new A129 Duo a few weeks ago using this
Viofo-branded hardwire kit. I know this is currently being discussed in another thread, but out of respect, I didn't want to hijack that thread. When I installed this in my 2012 Honda CR-V with a 3-year old battery I left the settings on 11.8V. Is that correct? Why would one change these settings?
Hi, I would recommend to set your kill switch at 12,4V. That would mean your car battery is still 80% charged when it cuts the power. 12,6-12,7 is 100% for an average healthy battery.
Yes, when you drive a petrol car, your car might still start when setting it to 11,8V (+\- 20% charge remaining) but I would not recommend it, for several reasons;
1. Depleting your battery to 20% or less seriously shortens the lifespan of the battery. These batteries were not designed to lose this much power in such a short time.
2. Electrical equipment in some car might get damaged because the starter becomes vampiric and sucks power to start the car.
3. Possibly having to use battery starter-cables to start your car, could have bad consequences for car systems, in some cases blowing fuses or frying systems.
My diesel and petrol cars could both start at 11,8V but especially the diesel was struggling a lot and fried a few systems, which resulted in expensive replacements (Airbag computer, emergency city stop systems)
The petrol only suffered minor issues with power folding mirrors, but still, very annoying (when locking or unlocking the car, only the driver mirror would fold and unfold, the passenger side only sometimes worked.
