A battery that keeps dying is usually not the battery. It is often the alternator or a drain, and Supercanic tests all three before replacing anything.
At a Glance
- We completed more than 100 electrical jobs in the last 12 months.
- Half of those invoices landed between $198 and $599.
- Batteries usually last three to five years, and less in hot climates.
- Multimeter first, parts second.
Grade AThis work calls for a Grade A mechanic, Rank IV of V on the MechanicRank scale. Complex diagnosis and major component work, where a mistake gets expensive.
Our lead technician, Anthony, holds this certification and the MechanicRank Master Mechanic rank. Verify this certificate or the Master rank, and see how MechanicRank grades work.
Electrical Repair in 67 Seconds
Real Supercanic jobs from across Riverside County. Watch on YouTube.
Electrical Services We Offer
Some calls are a dead battery. Others are a short buried somewhere in a harness. Either way we test first and pin down the circuit before we replace any parts.
- Starter motor replacement
- Alternator replacement
- Battery testing & replacement
- Parasitic drain diagnosis
- Wiring harness repair
- Fuse & relay diagnosis
- Sensor replacement (O2, MAF, MAP, etc.)
- Check engine & warning light diagnosis
- ABS & traction control system repair
- Air conditioning electrical faults
Charging System Service
If your battery keeps dying, the cause is usually the alternator or a drain somewhere in the system. We test for both.
- Battery load test
- Alternator output test
- Parasitic draw test
- Full charging system inspection
Common Electrical Warning Signs
- Car won't start or cranks slowly
- Battery warning light on dash
- Lights flickering or dimming
- Blown fuses repeatedly
- Accessories not working (windows, locks)
- Check engine light with no driveability issue
What We Test With
A cheap code reader only tells you where to start looking. We use dealership-grade scanners that read live sensor data, freeze frames and fault codes, so the repair goes after the cause.
- Mil Check Monitors
- Xtools Professional Scanner
- HP Tuners for advanced ECU data
- Oscilloscope for wiring diagnosis
- Multimeter & circuit testing tools
Auto Electrical Repair by the Numbers
Batteries strand more drivers than almost anything else. AAA reported more than 27 million roadside calls in 2024, and about 7 million were battery problems. AAA also says batteries last three to five years, with shorter life in hot climates like ours.
Read battery or alternator, how to tell. If a dead battery has you stuck, our roadside team runs 24/7. Warning lights go to diagnostics.
Supercanic figures come from our own job records, September 2025 to September 2026.
An Electrical Problem You Can't Pin Down
Call or book a diagnostic and we will track it down. We work in Hemet, Riverside, Moreno Valley and the rest of Riverside County, plus Hawthorne.
Real Electrical Diagnosis
Multimeter-first electrical work from real no-start and draw cases. See more of our work →
Auto Electrical Repair Near You
Pick your city to see the local shop, phone number and what we can do at your place.
- Auto electrical repair in Hemet
- Auto electrical repair in San Jacinto
- Auto electrical repair in Riverside
- Auto electrical repair in Moreno Valley
- Auto electrical repair in Menifee
- Auto electrical repair in Murrieta
- Auto electrical repair in Perris
- Auto electrical repair in Temecula
- Auto electrical repair in Lake Havasu City
- Auto electrical repair in Hawthorne
- All service areas
Auto Electrical Repair Questions
Why does my car battery keep dying?
Most of the time it is the alternator or a parasitic drain, not the battery. We load test the battery, check alternator output and run a draw test.
How long does a car battery last?
Usually three to five years. Heat shortens that, so batteries in Riverside County often fail sooner.
Can you replace an alternator or starter at my house?
Yes. Batteries, starters and alternators are some of our most common mobile jobs.
How much does electrical repair cost?
Half of our electrical invoices in the last year landed between $198 and $599.