Manual Hitachi UC24YC (page 7 of 26) (English, German, Dutch, French, Italian, Spanish)

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Rechargeable batteries Temperatures at which the battery can be recharged

EB7, EB9

EB12

-5°C – 40°C

EB7S, EB7G

EB9S, EB9G, EB9B, EB9M, EB924

-5°C – 60°C

EB12S, EB12G, EB12B, EB12M, EB1224

EB14S, EB14B, EB1424, EB18B, EB24B

EB9H, EB12H, EB14H, EB930H, EB1230H,

0°C – 45°C

EB1430H, EB2430H

(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 Recharging of batteries that have become hot

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.

Battery capacity (Ah)

1.3 Ah 1.7 Ah 2.0 Ah 2.2 Ah 2.4 Ah 3.0 Ah

7.2 V

EB7 13 min. EB7G 17 min.

EB7S

9.6 V

EB9 13 min. EB9G 17 min. EB9B 20 min. EB9H 30 min. EB924 24 min. EB930H 36 min.

EB9S EB9M

12 V

EB12 13 min. EB12G 17 min. EB12B 20 min. EB12H 30 min. EB1224 24 min. EB1230H 36 min.

EB12S EB12M

14.4 V

EB14S 13 min. EB14B 20 min. EB14H 30 min. EB1424 24 min. EB1430H 36 min.

18 V

EB18B 30 min.

24 V

EB24B 30 min. EB2430H 60 min.

Battery

voltage

(V)

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Hitachi UC24YC Manual

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