EV Battery Blog

How much does an EV battery weigh? Learn battery weights by model, what drives EV pack mass, and how battery weight affects range, handling, and tire wear.

What happens to an EV battery in a crash? Learn how EV battery packs protect themselves, what automatic safety systems activate, and how crash safety compares to gas cars.

EPA range vs real-world range in EVs explained. Learn why most EVs fall 10–25% short of their EPA estimate at highway speeds and how to accurately plan for real-world range.

How much lithium is really inside an EV battery — the honest kilogram figure by chemistry and by car, why the viral 62.6 kg Tesla number is a units error, and how little of the pack lithium actually is.

Wondering how many cells are in an EV battery pack? Learn exact cell counts by model, cell types, and how pack structure affects range and performance.

4680 battery cells explained: 46×80mm size, tabless design, dry electrodes, 244 Wh/kg real-world density, and which Tesla models use them in 2026.

What is a cobalt-free EV battery? Learn how LFP and LMFP work, why cobalt is being eliminated, which EVs are already cobalt-free, and what’s coming next.

Cylindrical, prismatic or pouch? The three EV cell formats compared — size codes decoded (18650, 21700, 4680), which cars use which, and which is winning.

Does an EV battery contain cobalt? NMC batteries do. LFP batteries contain zero cobalt. Learn why cobalt is controversial, which EVs are cobalt-free, and the future of cobalt-free battery technology.

What is EV battery degradation and how fast does it happen? Real data from 22,700 EVs shows 2.3% per year average — here’s what causes it and how to slow it down.