Why does my RX350 battery drain so fast?
The fuse is in an outside area (in cold Alaska no less!) and it wants to be at ambient temperature. You’d have to drain a lot more current than just 40mA. If the dealer can’t find where some parasitic drain is going, they have no business repairing cars, let alone putting remote starters on.
How to drain a battery on a Lexus RX300?
Then, with a volt-ohm-milli-amp meter, connect the meter in between the negative post and negative terminal of the battery and have it on the 10 amp scale. wait at least 30-45 seconds to let the computers go to sleep. This is with the key out, all lights off and all doors closed.
What can drain the battery in a car?
Even while your car is off, your battery provides power to things like the clock, the radio, and the alarm system. These things shouldn’t have a major impact on your battery. What may drain a car battery when it’s off, however, are things such as interior lights, door lights, or even bad fuses.
How often does a Mazda 3 battery drain?
There is a setting for automatically turning off all interior illumination in such a case. It should be set at 30 minutes from the factory. Check the Vehicle personalization guide .pdf in the stickied thread above. I have had this happen to my 2010 Mazda3GTS about 6 times in the past 2-3 months.
What causes a car battery to drain while driving?
Faulty Charging. If your charging system isn’t working properly, your car battery can drain even while you’re driving. Many cars power their lights, radio, and other systems from the alternator, which can make the battery drain worse if there’s a charging problem.
What does it mean when your battery drains overnight?
Why the Battery Drains Overnight A slow battery drain when everything is off is called a parasitic power loss. This happens when something – a glovebox light, an amplifier, any electrical component – is pulling power from the battery when it shouldn’t.
What should the parasitic draw be on a car battery?
For testing purposes, we will select 2A or 200mA in the amp section of the meter. This is where we can see the parasitic draw on the battery. The reading for a normal vehicle with no parasitic draw can range from 10mA to 50mA, depending on the manufacturer and the amount of computers and features the vehicle has.
Is it normal to have parasitic drain on battery?
Some parasitic drain is normal – your battery delivers enough energy to keep things, like your clock, radio presets, and security alarm operational at all times. However, if there’s an electrical problem – such as faulty wiring, poor installation, and defective fuses – parasitic drain can exceed what’s normal and deplete the battery.