Alternators Unlimited
Alternator and starter work on San Pablo Avenue in Berkeley, one charging system at a time.
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A car that cranks slowly, headlights that dim at idle, a battery warning light that will not clear: these are the jobs Alternators Unlimited on San Pablo Avenue in Berkeley has been associated with in local directories since the mid-1980s, according to the records the chamber holds. Owner Salvadore Perez is the contact on file. The details here come from public business records; the owner has not yet reviewed them. One directory marked the shop closed in late 2025 while others still show it open, so phone ahead before you drive over.
Typical jobs at an auto electrical shop
- Testing the charging system: battery, alternator output, and voltage drop across cables and grounds.
- Rebuilding or replacing alternators and starter motors, often the same day when parts are on the shelf.
- Diagnosing parasitic drains that flatten a battery overnight.
- Repairing wiring faults, blown fusible links and corroded connectors.
- Sourcing rebuilt units for older or less common vehicles that chain parts stores no longer stock.
Shops of this kind usually do not do general mechanical work, tires or bodywork. Ask first if the fault might be something other than electrical.
What to bring and what to ask
Bring the vehicle if it will start, or the removed alternator or starter if you have already pulled it. Note the year, make, engine size and whether the car has been jump-started recently. Ask for a written estimate that separates the bench test from the rebuild, and ask whether a rebuild or an exchange unit is the better value for your car. Confirm the turnaround, since some rebuilds wait on parts, and get the warranty terms for the work in writing.
Where to find them
The shop sits in West Berkeley on the San Pablo Avenue corridor, a few blocks south of the Albany line and a short drive from I-80 via University Avenue. That puts Albany, El Cerrito, Kensington, Richmond, Emeryville, Oakland and Alameda within easy reach, and much of Alameda County beyond.
Call 510-527-7773 to check hours and availability. If you own Alternators Unlimited, the chamber can pass this listing to you so you can confirm it or retire it.
Servicios
Típico de este tipo de negocioBench and in-car testing of the battery, alternator output and voltage drop so Berkeley drivers know whether the fault is the alternator, the battery, a cable or a ground before paying for parts.
Rebuilding a failed alternator with new bearings, brushes, regulator or rectifier, or supplying a rebuilt exchange unit when the original is beyond economic repair or the car cannot wait.
Diagnosis and rebuild of starters that click, grind or spin without engaging, including solenoid and drive replacement, for cars, light trucks and older vehicles that dealers no longer support.
Tracing parasitic draws that empty a battery overnight, repairing chafed harnesses, blown fusible links and corroded connectors, and confirming the fix with a measured draw test before the car leaves.
Sourcing or rebuilding alternators and starters for classic, imported and commercial vehicles for which new parts are scarce, a common need on the East Bay's older car stock.
Detalles
Ubicación y zona de servicio
Berkeley, CA 94702-1046
Preguntas frecuentes
Típico de este tipo de negocioIs it the battery or the alternator?
A battery that dies after a jump start usually points to the alternator; a battery that will not hold a charge overnight points to the battery or a parasitic drain. A shop of this kind tests both in a few minutes, so ask for the test result before agreeing to a part.
Should I rebuild my alternator or buy a new one?
For common late-model cars a new or remanufactured exchange unit is often quicker; for older, imported or commercial vehicles a rebuild of the original can be the only option. Ask the shop to quote both routes and say what warranty terms come with each.
How long does an alternator or starter job take?
If the shop has the parts, many rebuilds are done in a day. Unusual units may wait on components. Ask when you drop off, and ask whether you can leave the car or need to bring the removed part.
Is the shop still open?
Public listings disagree as of late 2025, with one directory marking the business closed and others showing it open. Call 510-527-7773 before driving over, and if the number does not answer, check a current listing.
Antes de contratar
- Call first: listings disagree about whether the shop is currently open.
- Ask for the state Bureau of Automotive Repair registration number and look it up.
- Get a written estimate that separates diagnosis from the rebuild or replacement.
- Ask whether a rebuild or an exchange unit is recommended for your vehicle, and why.
- Confirm turnaround time and whether parts must be ordered.
- Get warranty terms for parts and labor in writing.
Resumen en español
Alternators Unlimited es un taller de electricidad automotriz sobre la avenida San Pablo, en el oeste de Berkeley, condado de Alameda. Se dedica a probar el sistema de carga y a reparar o reconstruir alternadores y motores de arranque, además de localizar fugas de corriente y fallas de cableado. Antes de ir conviene llamar al 510-527-7773, porque algunos directorios indican que el negocio pudo haber cerrado a fines de 2025. La información proviene de registros públicos y el dueño, Salvadore Perez, aún no la ha confirmado.
Compilado a partir de registros comerciales públicos que tiene la San Francisco Bay Area Hispanic Chamber of Commerce. Las secciones marcadas como típicas describen lo que suele ofrecer un negocio de este tipo, no lo que este negocio ha confirmado.
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