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The XV50 Camry was introduced on 23 August 2011, and began U.S. sales in September 2011. The interior received a major restyling, while the exterior received all-new sheet metal and more angular styling.

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Why do I have to keep jump starting my car every morning?

Battery dead, after just one day from jump start... Each day we need to jump start it.

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Assuming you haven't added any new, power hungry accessories to your car lately, @jayeff's explanation is an excellent one for checking to ensure that the battery is getting properly charged when the car is running.

However, the other half of that equation is the battery's ability to hold onto that charge, which capability declines with age so as a battery gets older it holds less and less charge until you get to the point where it no longer holds enough to start or run the car.

Here in the US, most auto parts stores will hook up an electrical diagnostic machine to your car for free. That device will give you a rough idea of what might be the problem, but personally I've had better luck actually removing the alternator from the vehicle and taking it in to be tested on their alternator testing machine. That gives much more accurate results and can often point you at the exact cause within the alternator such as failed diodes, worn out brushes or a dead voltage regulator.

If your alternator is putting out the correct voltage then the next thing to do is test the battery. Again, the auto parts stores usually have a battery tester that can tell you if it's any good or not. You'll want the battery to be fully charged when you take it in; it needs to have a charge in order to measure output current against increasing loads. If you don't have a charger, chances are good they can charge it but you may have to drop it off and come back later to test it after they've had a chance to charge it.

Hopefully that'll give you some things to check; take a look at our suggestions and come back and tell us what you found and we'll see what your next steps should be.

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Hi @tomcat88869

With the vehicle parked and the transmission in park (AT) or neutral (MT), and the handbrake firmly applied, start the engine and then connect a voltmeter across the battery terminals and check if it measures between 13.8V to14.5V DC.

If it doesn't there may be a problem with the voltage regulator or the alternator. Also check if the serpentine belt is the correct tension.

Be safety aware when doing this as the engine is running. Watch where you place your hands etc and also watch out if you're wearing loose clothing etc so that it doesn't get caught

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Hi @tomcat88869

Further to this if the charge voltage is OK is to check if the trunk light is permanently turned on or not turning off when the lid is closed (use a mobile phone - video mode to check).

Small a wattage as the light is, if the battery has only a low charge from a short drive it is enough to flatten it again overnight.


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