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—this is a clear sign the battery is damaged and should not be used. Next, look for any physical damage such as punctures, tears in the outer casing, or corrosion on the terminals. If the pack smells strange or burnt, discard it immediately. Before use, check the voltage of each cell with a LiPo-compatible voltmeter; any cell reading significantly below 3.0V or above 4.2V indicates a problem. Also, if the battery gets unusually hot during charging or use, stop immediately. Always charge your LiPo packs with a proper balance charger and never leave them unattended. If you notice any of these warning signs, it’s safest to retire the battery to avoid fire or damage to your equipment.
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