When was the last time you checked your battery's internal resistance tracking data? This overlooked metric causes 23% of premature battery failures according to 2024 IEA reports. Unlike voltage or capacity that get all the attention, internal resistance operates in stealth mode – until your EV suddenly loses 18% range in cold weather.
Have you ever wondered why your smartphone battery degrades 22% faster after 18 months? At the heart of this universal challenge lies internal resistance growth – the silent killer of electrochemical efficiency. Recent data from Tesla's 2023 battery autopsy reports reveals resistance increases account for 63% of premature capacity loss in lithium-ion cells.
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