Hybrid Battery Repair & Rebuilds in Salt Lake City
Specializing in Toyota and Lexus NiMH hybrid batteries, including Prius, Prius c, Camry Hybrid, Highlander Hybrid, and Lexus RX. Module-level battery testing, capacity checks, and pack balancing — not a quick driveway swap. We focus on the hybrid battery pack, not the rest of the vehicle.
Built around how hybrid batteries actually fail
A Toyota / Lexus NiMH pack is only as strong as its weakest module. We work at the module level — not just the pack level — so a rebuilt pack starts more balanced than what came out.
Module-level testing
Each module is tested on its own — not just monitored as part of the pack.
Capacity checks when appropriate
Capacity and cycle tests show how a module actually behaves — not just how it reads at rest.
Pack balancing
Balanced packs cycle more evenly, which is why balancing is part of every rebuild — before the pack goes back into service.
Honest rebuild recommendations
If a pack isn't a good rebuild candidate, we'll say so — no fixed total quoted before battery testing.
Local Salt Lake service
Salt Lake City, Sandy, Draper, Murray, Holladay, Cottonwood Heights, West/South Jordan, Millcreek, and nearby.
Toyota & Lexus focus
We focus on NiMH packs in Prius, Prius c, Camry Hybrid, Highlander Hybrid, and Lexus RX 400h / 450h.
How our rebuild process works
A thorough rebuild involves bench testing — not a driveway evaluation. The pack is tested module-by-module, then balanced and re-checked before going back into service.
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Review battery symptoms
Review warning lights, trouble codes, and battery-related symptoms to determine whether the pack is a good candidate for rebuild.
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Inspect the battery pack
Inspect the battery pack for corrosion, heat damage, venting issues, and visible module problems.
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Test individual modules
Evaluate each module for voltage behavior under load, internal resistance, resting voltage stability, and remaining capacity. When appropriate, modules are capacity-cycled to identify weak modules and improve pack balance before reassembly.
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Replace weak modules
Replace failed or weak modules with better-matched tested modules when appropriate.
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Balance & recheck
Balance the pack, re-check module behavior, and provide honest recommendations based on overall battery condition.
A note on removal & installation: Battery removal and installation are arranged separately — most customers handle that part with a local mobile mechanic. If you'd like a starting point, just ask when you get in touch.
More than a single failed module replacement
A quick module replacement usually focuses on the module or block that has already triggered a warning light. That can sometimes get the vehicle moving again, but it may not address the overall condition of the pack.
A more complete rebuild looks at the battery as a system. Weak modules can hide behind one obvious failure, especially when the car only reports block-level voltage differences. By testing module behavior, capacity, voltage drop, and balance across the pack, we can make a better recommendation about whether the battery is worth rebuilding and which modules should be replaced.
- Usually focuses on the obvious failed module/block
- Often done quickly
- Limited time for capacity testing
- May not identify other weak modules
- Can be useful as a short-term repair
- Evaluates the pack more thoroughly
- Tests individual modules outside the car
- Checks load behavior and internal resistance
- Capacity checks/cycles modules when appropriate
- Replaces weak modules with better-matched tested modules
- Balances and rechecks the pack before return
Why we test beyond the failed module
Toyota hybrid systems monitor the battery in pairs of modules called blocks, not always as individual modules. By the time the vehicle detects a failure code, there are often additional weak modules beginning to fall behind.
A quick repair may replace only the module or block that triggered the warning light. In some cases that can temporarily restore operation, but it may leave other weak modules in the pack.
That's why we perform additional testing, including voltage behavior under load, internal resistance comparison, resting voltage checks, module matching, and capacity evaluation/cycling when appropriate.
This helps us better understand the overall condition of the battery pack before recommending repairs.
Block-level trouble codes are useful, but they do not always tell the full story of every module in the pack.
Supported vehicles & pricing
Listed prices are labor only. Total cost is labor plus replacement modules. Final price depends on battery condition and how many weak modules need replacement — we don't quote a fixed total before battery testing.
| Vehicle | Years | Labor | Typical module cost |
|---|---|---|---|
| Toyota Prius | 2004–2009 | $500 + parts | ~$45 each |
| Toyota Prius | 2010–2015 | $500 + parts | ~$45 each |
| Toyota Prius c | 2012–2019 | $400 + parts | ~$45 each |
| Toyota Camry Hybrid | 2007–2017 | $850 + parts | ~$45 each |
| Lexus RX 400h | 2006–2008 | $1000 + parts | ~$65 each |
| Lexus RX 450h | 2010–2015 | $1000 + parts | ~$65 each |
| Toyota Highlander Hybrid | 2006–2013 | $1000 + parts | ~$65 each |
What we look at on every rebuild
Voltage sag under load
How much a module drops when you actually pull current from it.
Internal resistance
Higher internal resistance means more heat and less usable energy.
Resting voltage stability
How modules behave at rest reveals which ones are quietly self-discharging.
Remaining capacity
How much usable energy a module can actually hold compared to its original spec.
Capacity cycling when appropriate
Charge / discharge cycles that show how a module behaves over time — not just one snapshot.
Module matching
Replacement modules should be close in capacity and resistance to the rest of the pack.
Pack balance
A balanced pack cycles more evenly and is less likely to wake up codes again soon.
Why capacity matters: voltage alone does not tell the whole story. A module can appear acceptable at rest but still have low remaining capacity or drop quickly under load. Capacity testing and cycling help show how much usable energy a module can still hold and whether it is a good match for the rest of the pack.
When a rebuild makes sense — and when it doesn't
A rebuild is not the right answer for every hybrid battery. Some packs are good candidates for module replacement and balancing. Others are too degraded to justify the cost. We'll give you an honest recommendation based on the actual condition of your battery.
What hybrid battery trouble looks like
If you're seeing one or more of these, it's worth getting the pack evaluated:
- Red triangle warning light
- "Check Hybrid System" message
- P0A80 trouble code
- Hybrid battery fan running often
- Battery gauge moving up and down quickly
- Poor fuel economy
- Reduced power or acceleration
Get a faster estimate
Text us with as much of this as you can — the more detail, the more useful our reply will be:
- Year, make, and model
- Current mileage
- Warning lights or trouble codes
- Whether the car still drives
- Your location in the Salt Lake area
- A photo of the dash warning lights if possible
Frequently asked
How much does hybrid battery repair cost?
Labor ranges from $400 (Prius c) to $1000 (Highlander Hybrid / Lexus RX), plus replacement modules. Modules are typically ~$45 each for Prius/Camry packs and ~$65 each for Highlander/Lexus packs. The number of modules that need replacement depends on the condition of your battery, so we provide a clear estimate after battery testing rather than a fixed total up front. See full pricing →
Is this the same as a mobile module swap?
No. A mobile driveway swap usually replaces only the modules that have already failed. Our rebuild is a thorough bench evaluation: testing individual modules, comparing internal resistance, capacity-checking modules, replacing weak ones with better-matched modules, and balancing the pack. Battery removal and installation are arranged separately; most customers handle that with a local mobile mechanic.
How long will a rebuilt battery last?
It depends on the condition of the modules used and how the rest of the pack ages. We don't promise a fixed lifespan or call rebuilt batteries "like new." A well-rebuilt pack can run reliably for years, but every battery is different. Our work is backed by a 90-day warranty on parts and labor.
What customers are saying
"Matt was able to help me with my 2008 Prius, that had previously been worked on by a different mechanic who had done a terrible job. He was able to diagnose and replace certain cells that were defective at a reasonable price. I now have my car operating properly again. I would highly recommend those of you that need some work on that hybrid battery to contact Matt."
— Bob P.
"I needed my hybrid's battery repaired and couldn't be happier with the service I received. They provided a fast, affordable hybrid battery replacement for my Camry and were incredibly transparent about the pricing and warranty. The technicians clearly specialize in EV and hybrid vehicles and ran a thorough diagnostic before doing any work."
— Derek Cohen, Sandy
"Great service. Excellent communication."
— Adam Tye