20V max* LITHIUM-ION 1.5 AH RECHARGEABLE BATTERY - 054-3124-0
20V max* LITHIUM-ION 1.5 AH RECHARGEABLE BATTERY - 054-3124-0
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How to charge the battery pack
NOTE:
This Lithium-Ion battery pack is shipped partially charged. Before using it the first time, fully
charge the battery pack.
A fully discharged battery pack will charge about 60 minutes in a surrounding temperature between
0°C (32° F) and 40°C (104° F).
1. Charge the Lithium-Ion battery pack with the correct charger (Mastercraft 054-3126-6, 5331).
2. Connect the charger to a power supply.
3. Attach the battery pack to the charger by
aligning the raised ribs of the battery pack with
the slot in the charger. Slide the battery pack
onto the charger (fig 1).
4. The charger will communicate with the battery
pack’s circuitry to evaluate the condition of the
battery pack.
5. The Fuel Gauge LED lights will cycle from right
to left during charging. This is part of the normal
charging operation.
6. After charging is complete, the green LED on the charger will be on and the Fuel Gauge LED lights
will turn off. The Fuel Gauge LED lights will not be displayed when the Fuel Gauge button is pressed
while the battery pack is on the charger.
7. The battery pack will fully charge, but will not overcharge, if left on the charger.
Battery protection
To protect the battery pack from damage and prolong its life, the battery pack’s circuitry will turn off
the battery pack if it becomes overloaded or if the temperature becomes too high during use. This may
happen in extremely high torque, binding and stalling situations. The battery pack will begin normal
operation when it cools down.
The Fuel Gauge will display four flashing LED lights if the circuitry detects a momentary overload.
You can conveniently reset the battery pack by releasing the power tool trigger switch. Press the Fuel
Gauge button again to display the remaining charge.
NOTE:
If the Fuel Gauge continues to flash four LED lights after reset, place the battery pack on the
charger to evaluate the battery pack condition.
NOTE:
A significantly reduced run time after fully charging the battery pack indicates that the battery
pack is near the end of its usable life and must be replaced.
Cold weather operation
When the battery pack is very cold, it may “pulse” for the first minute of use to warm itself. Put the
battery pack on a tool and use the tool in a light application. After about a minute, the battery pack will
have warmed itself and will operate normally.
When to charge the battery pack
NOTE:
This Lithium-Ion battery pack is shipped partially charged. Before using it the first time, fully
charge the battery pack.
The Lithium-Ion battery pack can be charged at any time and will not develop a “memory” when
charged after only a partial discharge. It is not necessary to run down the battery pack charge before
recharging. Remove the battery pack from the tool when it is convenient for you and your job.
1. Use the Fuel Gauge to determine when you need to recharge the battery pack.
2. You can “top-off” your battery pack’s charge before starting a big job or long period of use.
3. Due to Lithium-Ion’s fade-free properties, the only time it is necessary to charge the Lithium-Ion
battery pack is when the pack has reached the end of its charge. To signal the end of charge, power
to the tool will drop quickly. Charge the battery pack as needed.
fig 1
OPERA
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OPERA
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