Question: How do I tell if a LiPo pack is unsafe to use?
Answer: To determine if a LiPo battery pack is unsafe, start by visually inspecting it for any swelling, puffiness, or bulging—these are clear signs the cells are damaged. Check for any punctures, tears, or corrosion on the outer casing and connectors. Next, smell the battery; a burnt or chemical odour indicates internal damage. Use a LiPo voltage checker or a multimeter to measure the voltage of each cell; any cell below 3.0V or showing a significant imbalance compared to others is unsafe. When charging, if the battery becomes excessively hot (above 50°C), stop immediately. Also, if the battery fails to hold charge or discharges very quickly, it’s a sign of internal failure. Always store LiPos in a fireproof container and never use a damaged pack. If in doubt, dispose of the battery at a local hazardous waste facility. Safety first—never risk flying or driving with a suspect battery.
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