Charging:
Lithium Polymer batteries have specific charging requirements and ONLY chargers rated for Lithium Polymer cells may be used. The best chargers are those which require the user to manually select cell count and charge rate for each pack of cells, then automatically check to see that the settings are correct. Chargers which use only automatic detection of cell count (and on that basis set charge voltage) are prone to error, and can damage cells or cause a fire due to over-voltage charging of cells. We recommend that these chargers be set manually, if used. Other chargers are set manually, but do not include a safety circuit to oversee that setting. These are prone to user error, and should also be checked very carefully to insure proper use. For best results, a CC/CV charger, like those in the Great Plains Triton, should be used. These charge initially at a constant 4.2V and constant 1C rate, then taper the charge rate as the battery nears full capacity. Cells are about 90% charged in one hour, and can be left connected for another 40-50 minutes to complete the charge. The maximum permissible charge voltage per cell is 4.25V. The maximum charge rate for Lithium Polymer cells is 1C (ex: 0.7A for the ET-0700 cell). Please do not charge your lithium polymer 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. Many things we use in daily life - automobiles, steak knives, kitchen cleansers, and so on - can cause serious injuries and even death if not properly used and safety precautions heeded. It is no different with Lithium Polymer batteries.

• Be absolutely sure that the Lithium Polymer charger settings are correct for the battery pack being charged – both voltage and current settings
• Care must be taken to charge on a fireproof surface, such as in an open-top box made of bricks.
• Do not charge batteries near flammable items or liquids.
• Keep a dry fire extinguisher nearby - or a large bucket of dry sand, which is a cheap and effective extinguisher. using water should be avoided.
• Batteries should NEVER be left unattended while charging.

• Do not put the loose 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 loose cells on any conductive surface, such as a metal-topped table.
  
• Keep loose cells and battery packs WELL out of reach of children!
  
• Buy pre-assembled packs from an authorized dealer, rather than assembling packs from loose cells.
  
• Take care that the cells are not punctured, especially by metallic objects like hobby knives.
  
• 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, or for burns.