Problems that seem to require electrical repair may be nothing more than a dirty battery, especially corrosion buildup at battery posts. To avoid problems and maximize performance, keep the battery clean. Always have the battery voltage checked before installation of a new alternator or starter. Batteries generally last about 2-3 years. A weak alternator or faulty alternator wiring can cause a new battery to die prematurely. Alternators generally last about three years; a battery that dies before its time may signal a dead alternator. Because starters usually outlast vehicle warranties, problems are usually due to battery/alternator issues or even a blown fuse. At Blackstone Auto Care Centers we can help diagnosis these issues properly and professionally.