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My Car AC Drains My Battery - Car Talk - Nairaland

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RX 300 Battery Drains Overnight / Car AC Works Well Only In The Morning And Evening But Struggles In Hot Afternoon / Help My Car Battery Drains Easily (2) (3) (4)

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My Car AC Drains My Battery by phemsie(m): 2:41pm On Sep 10, 2020
Good dey car gurus, please I drive a Honda baby boy, anytime I uses AC in my car enemy if it's just for 30 minutes I mus Ty visit a battery charger the next day. But if I don't use AC my battery last for long. Even if I don't drive the car for days a along as I didn't use AC whenever I crank the engine it will snap to life.
Please what exactly is going on, is it that my AC was connected directly to battery, or is my alternator gone.

Please help
cc: GAZZUZZ
cc: nurey
Re: My Car AC Drains My Battery by aaking(m): 2:59pm On Sep 10, 2020
phemsie:
Good dey car gurus, please I drive a Honda baby boy, anytime I uses AC in my car enemy if it's just for 30 minutes I mus Ty visit a battery charger the next day. But if I don't use AC my battery last for long. Even if I don't drive the car for days a along as I didn't use AC whenever I crank the engine it will snap to life.
Please what exactly is going on, is it that my AC was connected directly to battery, or is my alternator gone.

Please help
cc: GAZZUZZ
cc: nurey


Take it to a good rewire specialist. Is rewire problem maybe they connect the ac directly to the battery
Re: My Car AC Drains My Battery by Ayomarcel(m): 6:06pm On Sep 10, 2020
Someone must have messed with you electrical component. Need a "rewirer"
Re: My Car AC Drains My Battery by GAZZUZZ(m): 6:35am On Sep 11, 2020
phemsie:
Good dey car gurus, please I drive a Honda baby boy, anytime I uses AC in my car enemy if it's just for 30 minutes I mus Ty visit a battery charger the next day. But if I don't use AC my battery last for long. Even if I don't drive the car for days a along as I didn't use AC whenever I crank the engine it will snap to life.
Please what exactly is going on, is it that my AC was connected directly to battery, or is my alternator gone.

Please help
cc: GAZZUZZ
cc: nurey

You have under charge issues. Your alternator charges below 12v with the air-conditioning turned on. You should look in that direction.

1 Like

Re: My Car AC Drains My Battery by Nobody: 9:32am On Sep 11, 2020
Something similar happened to my car of recent.

I had infinity a2 class B convertible..



Op someone must have messed with your cars brainbox or the Back front gear Armstring


There's and easy fix to this problem and less expensive on the long run.


Change the engine of this vehicle.... The cost should be around 700-800k as at now.


Tank me later if this helps.

Re: My Car AC Drains My Battery by phemsie(m): 11:53am On Sep 11, 2020
GAZZUZZ:


You have under charge issues. You alternator charges below 12v with the air-conditioning turned on. You should look in that direction.

Thanks you sir, I will definitely do that.
I think changing the alternator completely will be better or what do u suggest.
Re: My Car AC Drains My Battery by phemsie(m): 11:15pm On Sep 15, 2020
Fixed. I had to change the alternator completely. Everything is working perfect now.

Thanks all

4 Likes

Re: My Car AC Drains My Battery by pragmaticme(m): 11:09pm On Sep 16, 2020
[quote author=phemsie post=93968421]Fixed. I had to change the alternator completely. Everything is working perfect now.

Thanks all[/quote
How much did it cost you sir
Re: My Car AC Drains My Battery by Mottomata(m): 8:12am On Sep 17, 2020
phemsie:
Good dey car gurus, please I drive a Honda baby boy, anytime I uses AC in my car enemy if it's just for 30 minutes I mus Ty visit a battery charger the next day. But if I don't use AC my battery last for long. Even if I don't drive the car for days a along as I didn't use AC whenever I crank the engine it will snap to life.
Please what exactly is going on, is it that my AC was connected directly to battery, or is my alternator gone.

Please help
cc: GAZZUZZ
cc: nurey

You most likely have an under-charging issue. The alternator is the culprit. I had a similar issue in late 2017
Re: My Car AC Drains My Battery by gonkin(m): 1:11pm On Sep 17, 2020
Alternator brush.
I used to have those on my landcruiser.
Once I use the AC and full beams on during the rain. It's trouble. I can feel my engine not having enough power. If those are off it normal. So i first tested the alternator with a volt meter. I got a max of 12.9 then I took it to someone to check my alternator. He suspected the brushes. But taking it apart we discovered one of the winding was loose. He didn't have a soldering iron. So i took it home and soldered it my self. Mounted it back in the engine and viola. 14.2v so much power. With high beams and ac I got 14.1 so that's how I fixed the problem
Re: My Car AC Drains My Battery by phemsie(m): 5:45pm On Sep 17, 2020
[quote author=pragmaticme post=94001847][/quote]

I got a new alternator for 9k in ladipo market and the rewire collected 1k to fix
Re: My Car AC Drains My Battery by inagbe1: 10:24pm On Sep 17, 2020
Good evening all,i am having similar issue with my 2008 CRV. Also my ac works without switching it on. What could cause this.
Re: My Car AC Drains My Battery by phemsie(m): 1:09am On Sep 18, 2020
Take it to a good rewire, I guess the AC was wired to ignition directly. He should be able to separate the wiring and redo it the proper way.

inagbe1:
Good evening all,i am having similar issue with my 2008 CRV. Also my ac works without switching it on. What could cause this.

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