does aircondition in car drain battery power

Asked by Mar 28, 2016 at 11:38 AM about the 2001 Lexus RX 300 Base

Question type: Maintenance & Repair

I really want to know if d cause of car
battery draining power was caused by my
Aircondition. I use a lexus rx300 and each
time I use my aircondition while driving, as
soon as I pack the car then try to restart it
wouldn't start. Pls some one should tell me
what is the cause of this.

2 Answers

83,375

Have the charging and battery circuits and system tested, it sounds like your alternator is weak and can't overcome an increased demand. For some reason alternators on these seem a little weak, I know it was on mine, after I replaced it my flickering lights at idle went away. I also highly recommend when it come time to replace the battery that you use a dry cell battery.

15,705

Yes, if you really want to be certain NOT to get disabled somewhere, hopefully you'll be able to call the AAA, get the charging system checked out and replace the alternator and battery right now. The alternator and battery work together and a bad alternator will cause the battery to be depleted and go dead. New car batteries cannot easily recover from a deep discharge, it destroys the battery. Marine batteries can withstand a deep discharge... They are designed to do this, but, NOT so with a car battery, they are different technology. A fully functional electrical system on your car should not have any degradation at all no matter how many systems are running, A/C, radio, power equipment, 12 volt charging of Dometic cooler, etc. They all can be running simultaneously, if you are at full power. Finally, even if you don't run any of these systems, your car's engine needs electrical power, so, when the alternator finally dies, the engine will tap all the electric power it needs from the battery and once the battery can't deliver, you will be in trouble. Hey, you're driving a Lexus... Don't tell me you can't afford to get this done???

Your Answer

Add photo

Related Questions

Search Lexus RX 300 Questions

UK Questions

Are you a UK consumer? CarGurus now has a discussion forum in the UK.

Lexus RX 300 Experts

#1 Rx300_21001
Rx300_21001
Reputation 1,730
#2 John Orlando
John Orlando
Reputation 920
#3 mrsvirtuous
mrsvirtuous
Reputation 610
View All

Related Models For Sale

Used Toyota Highlander
590 Great Deals out of 23,291 listings starting at $2,944
Used Honda CR-V
881 Great Deals out of 63,189 listings starting at $1,495
Used Acura MDX
325 Great Deals out of 15,954 listings starting at $2,696
Used Toyota 4Runner
375 Great Deals out of 20,977 listings starting at $2,495
Used Toyota Camry
1,212 Great Deals out of 97,669 listings starting at $1,250
Used Toyota RAV4
747 Great Deals out of 56,463 listings starting at $2,488
Used Lexus ES 300
17 Great Deals out of 1,078 listings starting at $150
Used Honda Accord
1,009 Great Deals out of 75,847 listings starting at $899
Used Jeep Grand Cherokee
913 Great Deals out of 66,712 listings starting at $1,500
Used BMW X5
493 Great Deals out of 15,484 listings starting at $2,500

Used Cars For Sale

2003 Lexus RX 300 Base For Sale
37 listings starting at $4,400
2002 Lexus RX 300 Base For Sale
5 Great Deals out of 70 listings starting at $3,200
2001 Lexus RX 300 Base For Sale
57 listings starting at $3,400