At Maxat Hybrid Repair in Sacramento, we specialize in diagnosing and repairing individual failing cells in your Toyota RAV4 EV’s high-voltage lithium-ion battery, helping you avoid the high cost of a full pack replacement. With over 10 years of experience in EV and hybrid systems, we’ll restore your RAV4 EV’s range and performance efficiently and reliably. Stop by today and get back on the road with confidence electric power, restored.
If your RAV4 EV isn’t reaching its usual electric range, it may be due to aging or degraded battery cells that can no longer hold a full charge
Alerts like the “Check EV System” message or battery warning icons can indicate issues with the high-voltage lithium-ion battery or related control systems
High temperatures or a malfunctioning cooling system can cause the battery to overheat, which accelerates cell degradation and may reduce both range and performance especially in warmer climates
If the battery charge level jumps unpredictably or drops too quickly, it may be a sign of imbalance between cells or failing modules inside the battery pack
Sluggish acceleration or reduced torque delivery—especially under load—can result from degraded cells unable to provide consistent power output

We begin with a full diagnostic scan using tools calibrated specifically for the RAV4 EV’s Tesla-based lithium-ion system, analyzing voltage, capacity, and internal resistance of each cell group to accurately assess the condition of your battery pack

Our diagnostics pinpoint aging or imbalanced lithium-ion modules, which often occur after years of charging cycles, high-mileage driving, or thermal stress—allowing us to intervene before serious range or performance loss

Instead of replacing the entire battery, we identify and replace only the failing modules or cell groups with high-quality OEM-grade lithium-ion components. This targeted approach restores your vehicle’s power, efficiency.

After repair, we rebalance the battery system to ensure even energy flow and consistent performance, critical for maximizing range and maintaining drivetrain reliability in a full EV like the RAV4

After repairs are complete, we conduct a thorough series of diagnostic and performance tests to ensure your RAV4 EV’s high-voltage battery is functioning safely, efficiently, and reliably.

You’ll receive a detailed digital report that includes voltage data, thermal status, cell balance information, and a summary of work performed - giving you full transparency and peace of mind

We replace all faulty modules in your RAV4 EV’s lithium-ion battery pack with high-quality OEM-grade components compatible with the Tesla-sourced system. This ensures reliable performance and restores full electric driving capability.

For complete battery replacements or targeted repairs using new OEM lithium-ion modules, we offer a 4-year warranty that covers defects and performance issues, providing peace of mind for years of electric driving.*
(*Conditions and restrictions may apply, please contact us for details)

Instead of replacing the entire battery, we offer targeted module repair, addressing only the failing cells or blocks. This approach restores range and power at a fraction of the cost, making it an efficient and affordable solution for RAV4 EV owners.

We replace all faulty modules in your RAV4 EV’s lithium-ion battery pack with high-quality OEM-grade components compatible with the Tesla-sourced system. This ensures reliable performance and restores full electric driving capability.

For complete battery replacements or targeted repairs using new OEM lithium-ion modules, we offer a 4-year warranty that covers defects and performance issues, providing peace of mind for years of electric driving.*
(*Conditions and restrictions may apply, please contact us for details)

Instead of replacing the entire battery, we offer targeted module repair, addressing only the failing cells or blocks. This approach restores range and power at a fraction of the cost, making it an efficient and affordable solution for RAV4 EV owners.
Common issues include reduced driving range, “Check EV System” warnings, slow or incomplete charging, and rapid drops in state of charge. Over time, lithium-ion cells can degrade or become unbalanced, especially after high mileage or frequent fast charging.
Yes, in many cases we can repair your RAV4 EV battery by replacing only the failed modules or cell groups. This restores performance and range while avoiding the high cost of full pack replacement.
Avoid deep discharges, minimize exposure to extreme heat, and park in shaded areas when possible. Keeping the cooling system clean and performing regular diagnostics will help maintain long-term battery health.
Repair costs depend on how many modules are degraded or out of balance. We offer targeted, cost-effective repairs—contact us for a personalized estimate based on a full diagnostic report.
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