VOLTCRAFT 23 74 55 Quick Manual

Brand: VOLTCRAFT

Model: 23 74 55

Category: Battery chargers

Type: Quick Manual

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12V/DC LIPO BALANCE CHARGER

INTENDED USE

The charger is solely designed for private use in the model construction area, for charging

1-4 lithium cells (LiPo, LiIon and LiFe) and the operating times associated with it.

This system is not suitable for other types of use. Any use other than the one described

above may damage the product. Moreover, it would involve dangers such as short-circuit,

fire, electric shock, etc. Observe the safety instructions under all circumstances!

The product must not become damp or wet.

The product is not a toy and should be kept out of reach of children under 14 years of age.

Observe all safety notes in these operating instructions. They contain important

information regarding the handling of the product.

You are solely responsible for the safe operation of the charger!

PRODUCT DESCRIPTION AND CONTROL ELEMENTS

The 12V/DC charger is intended for charging 1-4 lithium cells (LiPo, LiIon, LiFe), has an

integrated balancer and automatic recognition of the cell number of the connected

rechargeable battery. The charger must be used with a stabilised direct current voltage

(11-15V/DC – e.g. a car battery).

The charging current can be selected infinitely variable between 0.1 A and 3.5 A. The

large display shows battery voltage, charging current, charged energy, charging time, end

of charging process and error messages.

1 Terminal clamps for supply

voltage

2 LC display

3 High-current charging con-

nection

4 Universal balancer connection

5 Minus balancer connection

6 "Battery type" button for

selecting the battery type

7 Rotary control for charging

current

8 "Start/Stop" button

9 Balancer LED indicator

EXPLANATION OF SYMBOLS

The symbol with the exclamation mark points out particular dangers

associated with handling, function or operation.

The "arrow" symbol indicates special advice and operating information.

SAFETY INFORMATION

Please read through the operating instructions completely before

operating the device. They contain important information for correct

operation.

The guarantee/warranty will be void if damage is incurred resulting from

non-compliance with the operating instructions. We do not assume any

responsibility for consequential damage!

We do not assume any liability for damage to property or personal injury

caused by improper use or the failure to observe the safety instructions!

In such cases the warranty/guarantee is void.

Dear customer, the following safety information is intended not only for the

protection of your health but also for the protection of the device. Please read

the following points carefully:

• For safety and licensing reasons (CE), unauthorised conversion and/or

modification of the device is not permitted.

• Consult an expert when in doubt as to the operation, the safety or the

connection of the device.

• Chargers and batteries are no toys and do not belong in the hands of

children! The product may only be set up, used or stored in places that are

not accessible to children.

• Children could change the settings or short-circuit the battery/battery pack,

which can lead to an explosion. Danger to life!

• On industrial sites, the accident prevention regulations of the association of

the industrial workers' society for electrical equipment and utilities must be

followed.

• In schools, training centres, hobby and self-help workshops, the handling of

chargers and batteries must be supervised by trained personnel in a

responsible manner.

• The product is intended for dry indoor use only. It must not get damp or wet.

• Do not expose the device to direct sunlight, high temperatures (>35°C) or

extreme cold (<0°C). Keep it away from dust and dirt.

• Do not use the battery charger inside a vehicle.

• Do not place any containers filled with liquid, e.g. vases or plants, on or next

to the charger. Falling over could destroy the charger, moreover there is a

high risk of fire.

• Do not operate the product unattended. Despite a considerable number of

protective circuits, it is impossible to exclude the possibility of malfunctions

or problems during the charging process.

• Only operate the product in moderate climate, never in tropical climate. For

more information on acceptable environmental conditions, see the chapter

"Technical Data".

• Select a stable, flat surface which is large enough and clean. Never place

the battery charger and the battery on a flammable surface (e.g. carpet).

Always use a suitable, non-flammable, heatproof surface.

• Ensure that there is sufficient ventilation during operation. Never cover the

battery charger and/or the connected battery. Leave enough distance (at

least 20cm) between the charger, the battery and other objects.

• Never operate the device immediately after it has been taken from a cold

room to a warm room. Under certain circumstances the resulting

condensation may lead to malfunctions or damage! Allow the charger (and

the battery/batteries) to reach room temperature before connecting the

charger to the power supply and using it. This may take several hours!

• Services, adjustments and repairs may only be carried out by a specialist/

specialist workshop. The device contains no parts that require servicing or

adjusting.

• Handle the product with care - hits, knocks or falls from even a low height

can damage the product.

• Avoid operation near strong magnetic or electromagnetic fields, transmitter

aerials or HF generators. This can affect the control electronics.

• If you have reason to believe that the device can no longer be operated

safely, disconnect it immediately and make sure it is not unintentionally

operated.

• It can be assumed that operation without danger is no longer possible if the

device has any visible damage, the device no longer works, after extended

storage under unsuitable conditions or after difficult transport conditions.

• Do not leave the packaging material lying around carelessly since such

materials can become dangerous toys in the hands of children.

• Place the charger and battery on a non-flammable, heat-resistant surface

(e.g. stone tiles). Maintain enough distance from flammable objects. Allow

enough distance between the charger and the battery - never place the

battery on the charger.

• As both the charger and the battery heat up during the charge/discharge

procedure, it is necessary to ensure sufficient ventilation. Never cover the

charger or the battery!

• Rechargeable batteries must not be short-circuited, taken apart or thrown

into fire. There is a risk of fire and explosion!

• Leaking or damaged rechargeable batteries may cause caustic burns if they

come into contact with skin. Therefore you should use suitable protective

gloves for this.

• Please observe correct polarity (plus/+ and minus/-) when connecting the

rechargeable battery to your model or charger. Connecting the battery

incorrectly will not only damage the model but also the battery. There is a

risk of fire and explosion!

• Also observe the safety instructions of the rechargeable battery

manufacturer.

If you are not sure about the correct connection or use, or if questions arise which are not

covered by these operating instructions, please do not hesitate to contact our technical

support or another qualified specialist.

Voltcraft®, Lindenweg 15, D-92242 Hirschau, Tel. +49 180/586 582 7.

ITEM NO.: 23 74 55



VERSION 05/10

COMMISSIONING THE CHARGER

Rechargeable batteries with more than 1 cell in lithium technology usually

have a balancer connection. This connection is used for monitoring of every

single cell by a charger or balancer and protecting it from over-charging. If the

rechargeable battery to be charged has such a balancer connection, this

connection is to be connected to the charger every time the battery is charged.

The charger has an integrated balancer. Since there are different balancer

plugs, a special plug version was dispensed with a universal connection (4)

was provided. For this, observe the following notes in this chapter.

For charging, observe the warning notes of the rechargeable battery

manufacturer regarding maximum charging current and maximum permissible

temperature of the rechargeable battery.

• Connect the charger to a stabilised direct current (11 – 15 V/DC, e.g. a car battery) in the

right polarity with the connection lines (1). The red cable must be connected to the plus,

the black to the minus pole of the voltage source. The device now performs a self-test.

For a short moment, the display (2) shows all segments.

• After a self-test, the display automatically changes back and forth between volt and

ampere display. If no rechargeable battery is connected yet, the volt display 0.00V is

shown. The ampere display shows a value between 0.1 and 3.5 A, depending on the

position of the rotary control for the charging current (7).

• Now connect the rechargeable battery to be charged to the charging output sockets of

the charger (3) with a suitable charging cable in the right polarity. The plus pole of the

rechargeable battery must be connected to the red socket and the minus pole of the

rechargeable battery to black charging output.

• If the rechargeable battery to be charged has a balancer connection, this connection

must be connected to the balancer socket of the charger (4) every time the battery is

charged. The minus pole of the rechargeable battery's balancer connection is to be

connected to the terminal pin (5) marked as minus pole.

• Select the right lithium battery type with the battery type button (6). Attention! If the

wrong battery type is selected, all charging parameters will no longer match the battery

type. This poses a danger of destroying the rechargeable battery. There also is a danger

of fire and explosion!

• When the charging current is displayed, set the desired charging current with the

charging current rotary control (7). For this, observe the instructions of the rechargeable

battery manufacturer. Attention! If the maximum permissible charging currents of the

manufacturer are not observed, this poses a danger of destroying the rechargeable

battery. There also is a danger of fire and explosion!

• After verifying all settings and connections, you can start the charging procedure by

pressing the start/stop button (8). Note: The charging process can be interrupted at any

time by pressing the start-stop button again.

• While charging, the display (2) automatically switches to show the following parameters:

Volt = current charging voltage, Ampere = current charging current, milliampere hours =

the energy and time with which the battery is currently charged = current charging time.

• While charging and while the rechargeable battery's balancer cable is connected, the

LED displays for the balancer (9) are also lit.

If the LEDs are always lit, the respective call is currently being "balanced", i.e.

adapted to the other cells by a controlled discharging current. If the LEDs only light

up sporadically or not at all, the cells are "balanced", i.e. all cells have the same

voltage level.

• If there are any errors in the charger and/or rechargeable battery, the device shows

these errors in the display and a warning signal sounds. It is possible that the charging

process cannot be started or that a charging processes is uninterrupted. For this,

observe the notes in the following chapter "Error messages".

• The charger will automatically end the charging process when the rechargeable battery

is charged completely and "balanced". When the rechargeable battery is full, the display

indicates "FULL" and a signal sounds. Now unplug the rechargeable battery and remove

the terminal clamps (1) from the supply voltage.

ERROR MESSAGES ON THE DISPLAY

If the charger recognises any errors, the display shows the respective error code and a

warning signal sounds. The following error messages can appear:

Err1: Interruption in the charging cable of rechargeable battery.

Err2: The high current charging connection (3) or balancer connection (4) was

disconnected during charging, or the connection is loose.

Err3: The input voltage at the terminals (1) is too low (below 11 V).

DISPOSAL

a) Product

Electronic devices are recyclable waste and must not be disposed of in the

household waste!

At the end of its service life, dispose of the product according to the relevant

statutory regulations.

b) Batteries and Rechargeable Batteries

You as the end user are required by law (Battery Ordinance) to return all used batteries/

rechargeable batteries. Disposing of them in the household waste is prohibited!

Batteries/rechargeable batteries that include hazardous substances are

labelled with these icons to indicate that disposal in domestic waste is

forbidden. The descriptions for the respective heavy metal are: Cd=cadmium,

Hg=mercury, Pb=lead (the designation is written on the rechargeable battery

e.g. under the rubbish can symbols depicted at the left).

You can return used batteries/rechargeable batteries free of charge at the

official collection points of your community, in our stores, or wherever

batteries/rechargeable batteries are sold!

You thus fulfil your statutory obligations and contribute to the protection of the

environment.

TECHNICAL DATA

Power supply ...................................... 11-15V/DC

Suitable rechargeable battery types .. Lithium Polymer, Lithium Ion, LiFePo4 (A123)

Number of cells ................................... 1 to 4 cells

Charge current .................................... 0.1 to 3.5 A (infinitely variable)

Maximum charging performance ....... 40 watt

(final charge voltage x charging current = watt)

Ambient temperature .......................... 0°C to +35°C

Ambient air humidity ........................... max. 90% rel. humidity, non-condensing







Legal notice

These operating instructions are a publication by Voltcraft®, Lindenweg 15, D-92242 Hirschau/Germany,

Phone +49 180/586 582 7 (www.voltcraft.de).

All rights including translation reserved. Reproduction by any method, e.g. photocopy, microfilming, or the capture in

electronic data processing systems require the prior written approval by the editor. Reprinting, also in part, is

prohibited.

These operating instructions represent the technical status at the time of printing. Changes in technology and

equipment reserved.

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VOLTCRAFT 23 74 55 Quick Manual

Brand: VOLTCRAFT

Model: 23 74 55

Category: Battery chargers

Type: Quick Manual

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