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19:39, 04 декабря 2012

How to Recharge Power Tool Batteries

Cordless power tools are not only inexpensive and convenient but also contain rechargeable batteries that allow you to use the tools for hours without having to charge the batteries. The Dewalt batteries, nickel-metal hydride cell (NiMH) and nickel-cadmium battery (NiCD), are recharged in a special charger that slowly adds current to the depleted cells. During the charging process, the battery becomes warm but not hot to the touch. NiMH battery chargers contain a microchip that shuts the charger off to keep the battery from overcharging

Locate and press the battery pack removal button located on the side or back of your power tool's handle.

Slide the battery pack along the rail track located on the bottom of the power tool to free the battery pack from the tool.

Match up the metal contacts on the side of the battery pack with the matching metal contacts in the charger that came with your power tool. Place the Makita battery pack into the battery charger.

Plug in the battery charger's power cord into a electrical outlet. The "Charge" light will illuminate on the charger.

Let the battery pack charge until the "Charge" light turns off or for the recommended time noted in the power tool's manual.

To extend the life of your power tool's NiCD battery, fully charge the battery, use the power tool, then fully discharge the battery. This will prevent the Hitachi power tool battery from developing what is called a "memory effect." Perform this procedure every two to three weeks, if you use your power tools often.

If you notice battery corrosion on the battery pack's contacts, use an alcohol-soaked cotton swab to remove the corrosion.

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