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Cordless Circular Saw Operator's Manual 17
Assembly
CHARGING METHOD: (CONTINUED)
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.
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
LIGHT IN GREEN. THE BATTERY WILL NOT BE RECHARGED. IN SUCH
A CASE, LET THE BATTERY COOL BEFORE CHARGING.
WHEN THE PILOT LAMP FLICKERS RAPIDLY IN RED (AT 0.2–SECOND
INTERVALS), CHECK FOR AND TAKE OUT ANY FOREIGN OBJECTS IN
THE CHARGER’S BATTERY INSTALLATION HOLE. IF THERE ARE NO
FOREIGN OBJECTS, IT IS PROBABLE THAT THE BATTERY OR
CHARGER IS MALFUNCTIONING. TAKE IT TO YOUR AUTHORIZED
SERVICE CENTER.
SINCE THE BUILT-IN MICRO COMPUTER TAKES ABOUT 3 SECONDS
TO CONFIRM THAT THE BATTERY BEING CHARGED WITH UC24YFA
IS TAKEN OUT, WAIT FOR A MINIMUM OF 3 SECONDS BEFORE
REINSERTING IT TO CONTINUE CHARGING. IF THE BATTERY IS
REINSERTED WITHIN 3 SECONDS, THE BATTERY MAY NOT BE
PROPERLY CHARGED.
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:
1. 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.
2. 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.