Question: How do I tell if a LiPo pack is unsafe to use?
Answer: To check if a LiPo battery pack is unsafe, first inspect it visually. Look for any swelling, puffing, or bulging—these are clear signs the battery is damaged and should not be used. Check for any punctures, tears, or damaged wrapping, as physical damage can lead to short circuits. Smell the battery; a burnt or chemical odour is a warning sign. Next, use a voltmeter to measure each cell’s voltage. Cells below 3.0V or inconsistent voltages between cells indicate damage or imbalance. Avoid charging packs that won’t hold voltage or heat up excessively during charging. If you notice any of these issues, do not use the pack. Always store LiPos in a fireproof container and dispose of damaged batteries safely at a designated recycling centre. Regularly inspecting your packs before use helps keep your projects safe and prolongs battery life.
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