Hitachi DB10DL Instruction Manual - Page 12

English ⅜ Regarding the temperature of the rechargeable battery. The temperatures for rechargeable batteries are as shown in the table below, and batteries that have become hot should be cooled for a while before being recharged. ⅜ Avoid recharging at high temperatures. A rechargeable battery will be hot immediately after use. If such a battery is recharged immediately after use, its internal chemical substance will deteriorate, and the battery life will be shortened. Leave the battery and recharge it after it has cooled for a while. Rechargeable batteries BCL1015 Table 2 Temperatures at which the battery can be recharged 32°F - 122°F (0°C - 50°C) ⅜ Regarding recharging time Table 3 shows the recharging time required according to the type of battery. Table 3 Recharging time (approx. min.) at 20°C Battery voltage (V) 10.8 Battery capacity (Ah) 1.5 Ah BCL1015 40 min. NOTE: The recharging time may vary according to the ambient temperature and the power supply voltage. 4. Disconnect battery charger from the receptacle. CAUTION: Do not pull the plug out of the receptacle by pulling on the cord. Make sure to grasp the plug when removing from receptacle to avoid damaging cord. 5. Remove the battery from the battery charger. Supporting the battery charger with hand, pull out the battery from the battery charger. Regarding electric discharge in case of new batteries, etc. As the internal chemical substance of new batteries and batteries that have not been used for an extended period is not activated, the electric discharge might be low when using them the first and second time. This is a temporary phenomenon, and normal time required for recharging will be restored by recharging the batteries 2 - 3 times. How to make the batteries perform longer. ⅜ Recharge the batteries before they become completely exhausted. When you feel that the power of the tool becomes weaker, stop using the tool and recharge its battery. If you continue to use the tool and exhaust the electric current, the battery may be damaged and its life will become shorter. CAUTION: ● When the battery charger has been continuously used, the battery charger will be heated, thus constituting the cause of the failures. Once the charging has been completed, give 15 minutes rest until the next charging. ● If the battery is recharged when it is warm due to battery use or exposure to sunlight, the pilot lamp may not light. The battery will not be recharged. In such a case, let the battery cool before charging. ● If the battery charger does not work while the battery is mounted correctly, it is probable that the battery or charger is malfunctioning. Take it to your authorized Service Center. BEFORE USE Check the work area to make sure that it is clear of debris and clutter. Clear the area of unnecessary personnel. Ensure that lighting and ventilation is adequate. OPERATION How to make the batteries perform longer. ⅜ Recharge the batteries before they become completely exhausted. When you feel that the power of the tool becomes weaker, stop using the tool and recharge its battery. If you continue to use the tool and exhaust the electric current, the battery may be damaged and its life will become shorter. 1. Installing the bit Always follow the following procedure to install driver bit. (Fig. 5) Driver bit Movement Hexagonal hole in the socket Guide sleeve Fig. 5 (1) Pull the guide sleeve forward. (2) Insert the bit into the hexagonal hole in the socket. (3) Release the guide sleeve and it returns to its original position. 12