Manual Hitachi UC14YFA (page 7 of 53) (English, German, Dutch, Danish, French, Italian, Portuguese, Swedish, Spanish, Norwegian, Finnish)

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Rechargeable batteries Temperatures at which the battery can be recharged

EB712S, EB7S

EB912S, EB9S, EB914, EB9B, EB9M, EB924

EB1212S, EB12S, EB1214L, EB12B, EB1220BL, -5°C – 60°C

EB12M, EB1224

EB1412S, EB1414, EB14B, EB1424

EB9H, EB12H, EB1222HL, EB14H, EB930H,

0°C – 45°C

EB1230H, EB1230HL, EB1430H

(2) Regarding the temperature of the rechargeable battery.

The temperatures for rechargeable batteries are as shown in the table below, and batteries that have become

hot should be cooled for a while before being recharged.

Table 2

Table 3 Recharging time (approx. min.) at 20°C

: Ni-MH batteries

NOTE: The recharging time may vary according to the ambient temperature and the power supply voltage.

(3) Regarding recharging time

Table 3 shows the recharging time required according to the type of battery.

4. Disconnect the charger’s power cord from the

receptacle.

5. Hold the charger firmly and pull out the battery.

NOTE

Be sure to pull out the battery from the charger

after use, and then keep it.

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.

CAUTION

⅜ If the battery is charged while it is heated because

it has been left for a long time in a location subject

to direct sunlight or because the battery has just

been used, the pilot lamp of the charger lights up

green. In such a case, first let the battery cool, then

start charging.

⅜ When the pilot lamp flickers in red (at 0.2-seconds

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.

⅜ Since the built-in micro computer takes about 3

seconds to confirm that the battery being charged

with UC14YFA 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.

Battery

voltage

(V)

Battery capacity (Ah)

1.2 – 1.4 Ah 2.0 Ah 2.2 Ah 2.4 Ah 3.0 Ah

7.2 V

EB712S

————— ———

EB7S

EB912S

EB9B

9.6 V EB9S

EB9M

EB9H EB924 EB930H

EB914

30 min.

EB1212S EB12B

50 min. 55 min. 60 min. 70 min.

12 V EB12S EB1220BL

EB12H

EB1224

EB1230H

EB1214L EB12M

EB1222HL

EB1230HL

14.4 V

EB1412S

EB14B EB14H EB1424 EB1430H

EB1414

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Hitachi UC14YFA Manual

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