HITACHI power tool batteries

Power Tool Battery Usage Tips:

Your new HITACHI power tool battery comes in a discharged condition. Upon initial use (or after prolonged storage period) the power tool battery may require two to three charge/discharge cycles before achieving maximum capacity. When charging the battery for the first time your charging device may indicate that charging is complete after just 10 or 15 minutes. This is a normal phenomenon with rechargeable batteries. Simply remove the battery from the charging device and repeat the charging procedure.

It is important to condition (fully discharge and then fully charge) the HITACHI power tool battery every two to three weeks. Failure to do so may significantly shorten the battery's life (this does not apply to Li-Ion batteries, which do not require conditioning). To discharge, simply run your device under the battery's power until it shuts down or until you get a low battery warning. Then recharge the battery as instructed in your user's manual.

If the power tool battery will not be in use for a month or longer, it is recommended that it be removed from the device and stored in a cool, dry, clean place. Do not store the power tool battery completely discharged. A 50% charge is optimum for storage. Self-discharge on a depleted power tool battery may trigger the built-in protection circuit which will hold back a recharge. A charged power tool battery will eventually lose its charge if unused. It may therefore be necessary to recharge the power tool battery after a storage period.

Do not expose the HITACHI power tool battery directly to sunlight. Do not disassemble the power tool battery, as that will result in leakage of electrolytic substances.

Keep the power tool battery away from metal objects to avoid short circuit of the battery's terminals.

If my original power tool battery is a Ni-Cd battery, can I use a different chemistry battery?
That would depend on both your charger and power tool. A lot of chargers will charge Ni-MH batteries, and a few others will charge Li-Ion. However, even if your charger will do this, your power tool might not. It is best in these situations, to check your user manual or contact the manufacture to find out the technical specs of your model.

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