ADDITIONAL SAFETY RULESFOR CHARGER & BATTERY CARTRIDGE1. Do not charge Battery Cartridge when temperature is BELOW 10°C (5OOF)2. Do not attempt t o use a step-up transformer, an engine generator or DC power3.Do not allow anything t o cover or clog the charger vents.4. Always cover the battery terminals w i t h the battery cover when the battery5. A battery short can cause a large current flow, overheating, possible burnsor ABOVE 4OoC (104OF).receptacle.cartridge is not used.and even a breakdown.( 1) Do not touch the terminals with any conductive material.(2) Avoid storing battery cartridge in a container with other metal objects such(3)Do not expose battery cartridge t o water or rain.ture may reach or exceed 5OoC (122OF).completely worn out. The battery cartridge can explode in a fire.as nails, coins, etc.6. Do not store the tool and Battery Cartridge in locations where the tempera-7. Do not incinerate the Battery Cartridge even i f it is severely damaged or isSAVE THESE INSTRUCTIONS.6