EV Battery Blog

What is State of Health (SOH), how do you check it, which apps work best, and can you trust the number? A complete guide to monitoring EV battery health.

What voids an EV battery warranty, can it be transferred to a new owner, how do you file a claim, and what happens once it expires? The practical side of EV battery warranties explained.

A complete buyer’s guide to evaluating used EV battery health — acceptable degradation levels, high-mileage reliability, resale value impact, and how to negotiate price.

EV batteries age two different ways — calendar aging from time alone, and cycle aging from charging and discharging. Here’s how each works and which does more damage.

A degraded EV battery isn’t trash — from reconditioning to second-life home energy storage, here’s what actually happens when an EV battery reaches the end of its automotive life.

How much range loss is too much, is replacement worth it, and what are the warning signs? A practical guide to deciding when an EV battery actually needs replacing.

Will solid-state batteries outlast lithium-ion? Is a million-mile EV battery realistic? Here’s how automakers are engineering the next generation of longer-lasting EV batteries.

Does an EV battery really last longer than a gas engine? Do they degrade like smartphones? We debunk the top 5 myths about EV battery lifespan with real data.

Comparing real-world degradation data across EV brands and chemistries to find out which vehicles retain the most battery capacity over time.

The Nissan Leaf has the most documented battery degradation history of any EV. Here’s which model years degrade fastest, why, and what changed in later generations.