Precautions For Cordless Driver Drill; Caution On Lithium-Ion Battery - Hitachi DB 3DL2 Handling Instructions Manual

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PRECAUTIONS FOR CORDLESS DRIVER DRILL

1. Always charge the battery at a temperature of 10 – 40°C. A temperature of less
than 10°C will result in over charging which is dangerous. The battery cannot be
charged at a temperature higher than 40°C.
The most suitable temperature for charging is that of 20 – 25°C.
2. When one charging is completed, leave the charger for about 15 minutes before
the next charging of battery.
Do not charge more than two batteries consecutively.
3. Do not allow foreign matter to enter the hole for connecting the rechargeable
battery.
4. Never disassemble the rechargeable battery and charger.
5. Never short-circuit the rechargeable battery. Short-circuiting the battery will cause
a great electric current and overheat. It results in burn or damage to the battery.
6. Do not dispose of the battery in fi re.
If the battery is burnt, it may explode.
7. When drilling in wall, fl oor or ceiling, check for buried electric power cord, etc.
8. Bring the battery to the shop from which it was purchased as soon as the post-
charging battery life becomes too short for practical use. Do not dispose of the
exhausted battery.
9. Using an exhausted battery will damage the charger.
10. Do not insert object into the air ventilation slots of the charger.
Inserting metal objects or infl ammables into the charger air ventilation slots will
result in electrical shock hazard or damaged charger.

CAUTION ON LITHIUM-ION BATTERY

This battery is exclusively for the driver drill. Never use with any other heavy-duty power
tools (i.e. Circular saw, Reciprocating saw, Disc grinder and Blower etc.).
To extend the lifetime, the lithium-ion battery equips with the protection function to stop
the output.
In the cases of 1 and 2 described below, when using this product, even if you are pulling
the switch, the motor may stop. This is not the trouble but the result of protection
function.
1. When the battery power remaining runs out, the motor stops.
In such case, charge it up immediately.
2. If the tool is overloaded, the motor may stop. In this case, release the switch of tool
and eliminate causes of overloading. After that, you can use it again.
Furthermore, please heed the following warning and caution.
WARNING
In order to prevent any battery leakage, heat generation, smoke emission, explosion
and ignition beforehand, please be sure to heed the following precautions.
1. Make sure that swarf and dust do not collect on the battery.
During work make sure that swarf and dust do not fall on the battery.
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