Question: How do I tell if a LiPo pack is unsafe to use?
Answer: To check if a LiPo battery pack is unsafe, follow these steps: First, inspect the pack visually for any swelling or puffiness; a swollen pack is a clear sign it’s damaged and unsafe. Next, look for any physical damage such as tears, punctures, or exposed wires. Check the connectors for corrosion or loose connections. Smell the battery—if there’s a strange or chemical odour, do not use it. Use a LiPo battery checker or a multimeter to measure the voltage of each cell; any cell below 3.0V or with a large voltage imbalance indicates damage. When charging, monitor the pack closely for excessive heat; if it gets hot to the touch (above 50°C), stop charging immediately. Always store LiPo packs in a fireproof bag or container. If you notice any of these signs, safely dispose of the battery according to local hazardous waste regulations. Never use or charge a suspect LiPo pack as it could catch fire or explode.
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