Field Notes and Owner Guides
Practical Tesla Information From the Service Van
Ray writes about questions that come up during service calls: low-voltage warnings, charging behavior, tires, battery care, warranty terms, and what an alert means for the next step.
Qualified independent repairer·U.S. Marine veteran·Mobile EV repair, LA–San Diego
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Tesla low-voltage battery warning
Tesla 12V and 16V Battery Warning Signs and What to Do
Learn what a Tesla low-voltage battery powers, which warnings matter, and what to do if your Model 3 or Model Y will not wake up.
3/12/2025•2 min read
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Tesla charging slower after update
Tesla Charging Slower After an Update? Check These Settings
2/28/2025•2 min read

Tesla Supercharger etiquette
Tesla Supercharger Etiquette and Faster-Charging Tips
2/15/2025•2 min read
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Tesla LFP battery charging
Tesla LFP vs. Nickel-Based Batteries: Charging Guide
2/1/2025•2 min read
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Tesla Model Y tire replacement
Tesla Model Y Tire Replacement and Rotation Guide
1/20/2025•2 min read
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common Tesla problems
Common Tesla Problems Seen by a Southern California Mobile Tech
1/10/2025•2 min read

Tesla warranty coverage
Tesla Warranty Coverage: What Owners Should Check First
12/28/2024•2 min read
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Ray Novelo
Owner, Ray's EV Service · Tesla specialist
U.S. Marine veteran and mobile Tesla diagnostic technician. Articles separate Ray's field observations from manufacturer guidance and link to primary sources when a claim depends on published technical information.