Battery On off car battery switch - cable length?

[Dubman]

Hi, My car is Mitsubishi Colt 1.3 (1998), and I'd like to install a battery on / off switch in the interior of the car. My question is: would it be ok to use around 1.5 meter length of normal battery cable? The idea is to connect it to the battery negative terminal and to the existing negative battery wire, extending it to the switch in the car interior, and the reason for the installaton is because I regularly park in an open or semi-open air location where the temperature can fall to -10 C or even lower, and I prefer that there is no drip charging especiallyp for car clock. And I'm worried about start up problems due to the cold. Would these items be suitable?
https://www.amazon.co.uk/WINOMO-Bat...tch+winomo&dpPl=1&dpID=31l5pQqBO+L&ref=plSrch
And cable:

https://www.amazon.co.uk/eXODA-Batt...G27RVQ808YX&psc=1&refRID=GKJVYTP68G27RVQ808YX
Thanks

 

[Dubman]

Good information! Now I'm thinking of just adding a second lightly padded special battery jacket if it fits, which I think it should. I think my battery is about 2,5 years old. Thanks!

 

[dmxtothemax]

car batteries for cold climates - Google Search - https://www.google.com/search?client=firefox-b&q=car+batteries+for+cold+climates

 

[Deleted member 26818]

Personally, as soon as a vehicle fails to start when the weather turns cold, I replace the battery.

 

[Dubman]

Changing the battery if the car fails to start due to cold weather is my present plan. Thanks.

 

[Squid]

Personally, as soon as a vehicle fails to start when the weather turns cold, I replace the battery.

You've never owned a Lotus lol.

 

[brianmoooore]

The flashing red light. Not an alarm by any chance?

 

[LightGEN]

Most modern vehicles have an insulating jacket around the battery to give it a degree of protection from the cold.
Assuming the car is 'fairly' modern, the integrated alarm/immobiliser will place a constant load on the battery - that's likely going to be the greatest source of drain. In the real world it should be possible to park a car for a couple of weeks without the battery becoming drained to the extent that the car can't be started. If you find that it doesn't last that long, it may well be a sign that the battery should be replaced - failure to hold charge in the cold being a warning sign ....however, it's also possible that that's a fault in the vehicle. I experienced a battery discharge problem in an E39 BMW 5 series a few years ago - turned out to be a faulty temperature control device in the heating system, which caused the ventilation fans to run at random while the vehicle was parked - cured the problem by replacing what is referred to as the 'hedgehog'.