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| home > Products and Solutions > Technical Reference > Safety Subjects |
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Lithium Polymer Charging, Handling, Safety Information |
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Charging: |
| Lithium Polymer batteries have specific charging requirements and ONLY chargers designed to charge Lithium Polymer batteries may be used. The best chargers require the user to manually select the cell count and charge rate for each pack, then automatically check to see that the settings are correct. The Lithium Polymer Chargers that are designed and manufactured by CHARGERY are designed for this purpose. Chargers which use only automatic detection of cell count (charge voltage) are prone to error, and can damage cells or cause a fire due to over charging of cells by exceeding the cell voltage. We do not recommend this type of charger. Other chargers are set manually, but do not include a safety circuit to oversee that setting. These are prone to user error so we do not recommend those chargers. Please do not charge your lithium polymer battery at any rate higher than 1C. Doing so may reduce the capacity and life cycle of the cells, with very little savings in charge time. Safety precautions for charging Lithium Polymer batteries include: |
- Check and re-check the Lithium Polymer charger settings for the battery pack being charged - both voltage and current settings
- Charge batteries on a surface that can withstand heat and is not prone to catch fire. A wooden table is not recommend.
- Do not charge batteries near flammable items or liquids.
- Do not charge inside your model. The materials used in model airplanes are highly flammable and or temperature sensitive
- Do not charge inside an automobile, especially while driving.
- Do not use water to extinguish a battery fire. Keep a dry fire extinguisher (class ABC is good) nearby.
- Do not try to fight any fire. If you cannot stop a fire immediately, call the fire department.
- Do not charge a battery that appears to have "ballooned" due to over or under charging.
- Do not store batteries in an automobile. Do not peak charge or "top off" lithium polymer battieries.
- BATTERIES SHOULD NEVER BE LEFT UNATTENDED WHILE CHARGING.
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| Storage & Handling: |
| New cells may have a high initial charge, and care must always be taken to insure that single cells are not short-circuited. |
| PLEASE: |
- Do not put the single cells in a pocket, bag, or drawer where they could short-circuit against other items, or the battery tabs could be pressed against each other.
- Do not place the single cells on any conductive surface, such as a metal-topped table.
- Keep single cells and battery packs WELL out of reach of children!
- Take care that especially metallic objects like knives or scissors do not puncture the cells.
- If the electrolyte in the cells should get on your skin, thoroughly wash with soap and water. If in the eyes, rinse thoroughly with cool water. Immediately seek medical attention for this.
- Store batteries in a dry cool place away from flammable materials.
- Store batteries in a fireproof container.
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