During winter electrical system test should be on your must do list.  That because, cold weather can wreck havoc on your vehicle’s electrical system and battery, and the increased power demands of defrosters, windshield wipers and heating systems.  Below is a test check list.

* A simple battery test can be preformed by turning on your vehicle’s headlights before starting the engine. If you notice the lights get brighter once the engine is running, a more thorough battery tests should be undertaken.

* Metering voltage with a voltmeter or measuring electrolyte levels for an unsealed, low-maintenance battery are two examples of such tests. If your tests show the voltage lower than 12.4V or if electrolyte-specific gravity resides below 1.225, a recharge or replacement of the battery is likely required.

* If you are not comfortable performing battery tests yourself, any reputable mechanic should be able to run a quick diagnostic test on your battery and charging system. Some auto parts stores are even able to do this.

* Make sure your headlights, taillights, back up lights, and signal lights (including your hazards) illuminate with a visual check.