You know that your battery stores electricity – enough to start your engine and get you moving. But that's about it – you can only get a few miles in Gilbert on battery power alone. You need an alternator to generate enough electricity to run your engine and power your electrical accessories like the stereo, power seats, heater fan, on-board computers, and so on. On top of that, the alternator needs to recharge your battery. So when your alternator isn't working properly, there isn't enough electricity for all of those things. When your alternator fails, you aren't going very far.
So why would your alternator not work? Usually they've simply worn out. Alternators are driven by your serpentine belt and spin 2 to 3 times faster than the engine – that's a lot of work. The bearings wear out, as do the cooper wire coils and magnets that generate the electricity.
There's no sense in hobbling along with an alternator that's not working properly. It will fail at some point and leave you stranded. Get a bad alternator replaced as soon as you can. Your Gilbert AZ service technician at Spectrum Car Care Center will install an alternator that meets your manufacturer's specifications.