Question: How do I tell if a LiPo pack is unsafe to use?
Answer: To check if a LiPo battery pack is unsafe, start by inspecting it visually. Look for any swelling or puffing—this is a clear sign the battery is damaged and should be discarded safely. Next, check for any physical damage such as punctures, tears in the wrapping, or corrosion on the terminals. Measure the voltage of each cell with a reliable LiPo-compatible charger or voltmeter; cells significantly below 3.0V or with uneven voltages indicate problems. Smell the battery—any unusual or burnt odours mean it’s unsafe. Also, feel the battery temperature after use; if it gets excessively hot (above 60°C) quickly, avoid using it. When charging, never leave the battery unattended and use a proper LiPo charger with balance charging. If you notice any of these signs, do not use the pack. Instead, discharge it safely using a LiPo discharger or a safe load, and then recycle it at a designated battery disposal point. Prioritise safety to avoid fire hazards.
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