Before you replace anything, get it diagnosed. A “battery” problem is frequently something far cheaper — and we’ll tell you honestly either way.
Does your Tesla actually need a new battery?
Often, no. What looks like a failing high-voltage battery can turn out to be a dead 12V battery, a contactor or BMS fault, a charging-system issue, or normal degradation that doesn’t warrant replacement. We start every battery job with a real diagnosis so you’re not paying for a pack you don’t need.
How we diagnose Tesla battery problems
We run a battery state-of-health test and read manufacturer-level fault codes to see what’s really happening — remaining capacity, cell balance, thermal behavior, and any charging faults. You get a plain-language explanation of the results and your options before any work begins.
Your options: repair, module service, or full replacement
- Repair the real fault — 12V battery, contactor, sensor, or charging component.
- Module-level service — addressing specific failed modules rather than the whole pack.
- Full pack replacement or upgrade — when the pack is genuinely at end of life.
What does Tesla battery replacement cost?
It depends entirely on your model, the specific problem, and which path makes sense — so we quote after diagnosis, not before. What we can promise: an honest recommendation and the cost up front, with no pressure toward the most expensive option. We even install batteries acquired by our customers, at discounted rates.
12V battery vs. high-voltage battery
Every Tesla has two batteries: the large high-voltage pack that drives the car, and a small 12V battery that runs its electronics. A weak 12V battery causes many scary-looking symptoms — and it’s an inexpensive fix, not a pack replacement. We check the simple things first.
Tesla models we service
Model S, Model 3, Model X, and Model Y — all model years, in and out of warranty.
Why battery work belongs at an EV-only shop
High-voltage packs are heavy, high-energy, and genuinely dangerous to handle without the right training and equipment. This is exactly the work a general shop shouldn’t improvise on. We have the tools and the high-voltage safety procedures because electric vehicles are all we do. Need broader repair help too? See Tesla Repair.
Quick answers
Do I need to replace the whole battery?
Often not — many “battery” issues are a 12V battery, a fault, or normal degradation. We diagnose before recommending replacement.
Are you cheaper than Tesla for battery work?
We are frequently cheaper, especially out of warranty — and we’ll give you the honest number before starting anything.
How long does it take?
It depends on the fix and parts availability — we’ll give you a realistic timeline after diagnosis. Our timelines to repair or replace batteries are typically faster than Tesla technicians.