Flat battery tonysparko

[Tonysparko]

Parked my cx3 at airport for two weeks.On returning finding the battery flat all lights flashing on dash also all external lights flashing.people at the parking lot jump started the vehicle and was able to drive home.Took car to dealer who charged the battery did test and informed me that the dash cam was drawing a leakage.Being an electrical engineer for many years.I wired the dash cam myself .Saw on these forums that there was two ways to wire into the cx3s wiring one before ignition and one after ignition.I chose the first way which would detect anything when the car was stationary. But I am told by mazda that this was the cause of the flat batteryThere suggestion was to wire it via the cigarette lighter fuse.Has anybody got any thoughts on this please?

[st3v3cx-3]

Hi Tony,

There's some information on this site which might be of interest :-

https://dashcamtalk.com/battery-discharge-prevention/

Things I think you need to consider are :-

- Even if your dash cam has a parking mode, lots of regular car or people movements in an airport or other car park will soon overfill the capacity of your SD card and thus potentially end up overwriting any incidents during a 2 week period.
- I'm no expert, but I don't think your car battery will last more than a few days, let alone a two week period, before any power cut-off switch shuts down the dash cam to prevent the battery being flattened
- You can buy powerbanks which will run the dash cam and thus leave the car battery unaffected but even one such as Cellink B (see http://www.car-dvr.co.uk/cellink_b/powe ... ink_b.html) is only good for a maximum 38hr continuous period. How that would equate when in an intermittent use in a car parking situation would be hard to calculate with any real accuracy - if the dash cam switched on for 10 mins average in every hour period then the power bank would give 38 * 6 = 9.5 days maximum if my maths is correct. Still not a full 14 day period

[jtonline]

If your Rexing V1 dash cam doesn't have a low voltage switch off setting, then you should power it from an ignition controlled fuse such as Fuse 5 in the footwell fuse box, so that the dash cam powers off with the ignition.

However, if you want it to record when the ignition is off, you could use a Power Magic Pro or, as st3v3cx-3 has suggested, a Cellink B battery pack to prevent your CX-3 battery from going flat. If using a Cellink until it runs flat, you would have to drive for at least one hour before it was fully charged up again, or alternatively remove it from the vehicle and charge it up from a 12V power inverter indoors.

I installed a Cellink B when I installed a Thinkware front and rear dash cam in my CX-3. See my write-up here: http://www.jtonline.info/thinkware-f770 ... m-cellink/

[Tonysparko]

Thanks very much for your information regarding my rexingv1 dash cam I will rewire it off fuse 5 which as you so rightly said is after ignition I didn't realise that this unit could discharge the battery so quickly.Mazda checked the vehicle over and came up with that result