Maintenance And Inspection - Hitachi Koki UC 24YJ Mode D'emploi

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(2) Regarding recharging time

Table 2 shows the recharging time required according to the type of battery.

Table 2 Recharging time (approx. min.) at 20°C

Battery

voltage

1.3 Ah

(V)

7.2 V

EB7S

9.6 V

EB9S

12 V

EB12S

14.4 V

EB14S

—

18 V

24 V

—

: Ni-MH batteries

4. Disconnect the charger power cord from the

receptacle.

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

Revitalizing the battery (trickle recharge)

A new battery or a battery that has not been used for

extensive periods may not charge completely due to

internal chemicals being inert.

Leave the battery inserted in the charger for 8 to 12

hours after charging is complete. The charger

automatically 'revitalizes' the battery by trickle

recharging.

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

Repair is required if the receptacle is not secured

properly or the power cord does not stay in the

receptacle. Consult your electrician. Using the charger

in this condition may lead to fire.

Insert the battery into the charger with the model

name facing left (toward the lamp). If the battery is

inserted in the reverse direction, not only will

recharging be impossible, but also the terminals may

be damaged leading to malfunction.

If the charge status lamp is flashing orange rapidly

(in 0.2 second intervals) and the buzzer sounds

intermittently for 5 seconds, check that the hole for

connecting the battery is not obstructed. Remove

any obstructions. If no obstructions are found, the

battery or charger may be malfunctioned. Return

both to your place of purchase.

2.0 Ah

9 min.

EB7B

EB9B

9 min.

EB9M

EB12B

9 min.

EB12M

EB1220BL

9 min.

EB14B

EB1820

—

EB18B

—

EB24B

Battery capacity (Ah)

2.2 Ah

14 min.

—

14 min.

EB9H

EB12H

14 min.

EB1222HL

14 min.

EB14H

18 min.

EB18H

20 min.

—

If the charge time lamp does not light when the

power cord is connected to the receptacle, disconnect

the power cord, and check that the battery is attached

correctly.

The battery retains heat when used or left for

prolonged periods in direct sunlight. In this state, the

charge time lamp flashes red, and the battery cannot

be charged immediately. Leave the battery inserted

in the charger, and charging will commence when

the battery cools down.

If the lamp goes out while charging, disconnect the

power cord, and leave for 3 to 5 minutes before

reconnecting. If the problem persists, call for repairs.

Leave 5 minutes between charging batteries as the

charger may overheat leading to malfunction.

The battery life is finished if it can only be used for

short periods even when fully charged. Purchase a

new battery. Continuing to use a depleted battery

may cause the charger to malfunction.

NOTE

Charging times may be longer depending on the

surrounding temperature and battery conditions.

Charge time lamp indications are only a guide, and

may vary depending on the surrounding temperature

and battery conditions.

Remove the battery from the charger when not in

use.