Panasonic EY4640 EY4640 User Guide - Page 15

Overheat warning lamp Off (normal operation) Flashing: Overheat Indicates operation has been halted due to battery overheating. The overheating protection feature halts operation to protect the battery pack in the event of overheating. The overheat warning lamp on the control panel flashes when this feature is active. • If the overheating protection feature activates, allow the tool to cool thoroughly (at least 30 minutes). The battery is ready for use when the over-heat warning lamp goes out. • Avoid using the tool in a way that causes the overheating protection feature to activate repeatedly. Battery low warning lamp Off (normal operation) Flashing (No charge) Battery protection feature active Excessive (complete) discharging of lithium ion batteries shortens their service life dramatically. The tool includes a battery protection feature designed to prevent excessive discharging of the battery pack. • The battery protection feature activates immediately before the battery loses its charge, causing the battery low warning lamp to flash. • If you notice the battery low warning lamp flashing, charge the battery pack immediately. - Accidental re-start preventive function - Even if the battery pack is inserted on the tool with the power switch in the "ON" position, the tool does not start. At this time, the lamp flickers slowly and this shows that the accidental restart preventive function is at work. - To start the tool, first slide the power switch toward the "OFF" position and then slide it toward the "ON" position. [Battery Pack] For Appropriate Use of Battery pack Li-ion Battery pack (EY9L40) • For optimum battery life, store the Liion battery pack following use without charging it. • When charging the battery pack, confirm that the terminals on the battery charger are free of foreign substances such as dust and water etc. Clean the terminals before charging the battery pack if any foreign substances are found on the terminals. The life of the battery pack terminals may be affected by foreign substances such as dust and water etc. during operation. • When battery pack is not in use, keep it away from other metal objects like: paper clips, coins, keys, nails, screws, or other small metal objects that can make a connection from one terminal to another. Shorting the battery terminals together may cause sparks, burns or a fire. • When operating the battery pack, make sure the work place is well ventilated. • When the battery pack is removed from the main body of the tool, replace the battery pack cover immediately in order to prevent dust or dirt from contaminating the battery terminals and causing a short circuit. - 15 -