Pre-Charging Guidelines
Take the time to visually inspect each LiPo battery.
Look for any damaged leads, connectors, broken shrink wrap, swelling of cells, or other irregularities. Do not use the battery pack if you find any of the issues listed.
Check the voltage of the pack using a digital voltage tester.
Before installing, charging, or changing the connectors of a battery pack, use a digital voltage tester like the one pictured below to inspect individual cells for potential irregularities. The cells within a battery, if properly maintained, should maintain a balanced charge between cells. A brand new battery should not have a difference of more than 0.1v between cells. Most common chargers can balance a battery to within 0.02v or better. Ensure you charge your batteries in a BALANCE mode whenever possible. Post charge inspect the cell difference to ensure a good balance was established (0.02v between cells or better).
Do not attempt to charge a damaged pack.
Do not charge a LiPo battery pack if any damage is found. Some indications of damage is swelling or a "puffy" battery. If you can smell a sweetly metallic scent coming from the battery DO NOT charge it, this is an indicator of a ruptured cell. Charging a damaged cell could result in a LiPo fire.
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