ISDT D2 User guide

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Warnings and Safety Tips

The following safety tips are essentially important. Please strictly follow the manual’s instruc-

tions in operation to guarantee safety. Improper operation or incorrect working parameter

settings may cause damages to the charger and battery and/or result to a re.

Do not use the charger in an unattended manner; in case of any functional abnormity, please
stop using it and refer to the manual.

Keep the charger away from dust, humidity, rain and high temperature, as well as avoid direct
exposure to the sun and intense vibration.

Make sure input voltage for D2 is AC 100-240V.

Please place the charger on a heat-resisting, non-ammable and insulating surface. Do not
use it by placing it on the car’s seats, carpet or other similar places. Keep inammable and
explosive objects away from operation areas of the charger.

Make sure the heat emission hole at the bottom of the charger is uncovered while in use, and
ensure the cooling fan smoothly extracts heat.

Please fully understand the charging and discharging characteristics as well as the battery’s
specications. Additionally, set up proper charging parameters in the charger. Incorrect
setting of parameters can cause damage to the charger and battery and/or result to
disastrous consequences such as re or explosion.

When charging or discharging is completed, please press the speed shuttle key to terminate
current task, and remove the battery when the charger shows the standby screen.

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Product Parameters and Characteristics

Thank you for purchasing the ISDT D2 Charger.

This Manual will guide you how to use D2 and its important functions.

You can know more about relevant information of IDST products by following this

link: www.isdt.co

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Product Parameters and Characteristics

120MM

Specications:

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108MM

BD!211.351W

1/2.23/1B!+3

1/2.4/1B!+3

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70MM

47MM

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621h

Default Battery Type of
Charger and Task Parameters

NiCd/NiMH Pb LiFe Lilon LiPo LiHv

Rated Voltage

Full Charge Voltage

Storage Voltage

Discharge Voltage

Pre-charge Voltage

Balance Charge

Unbalanced Charge

Support Cells

Max Charge Current

1.20V

1.40V

Not supported

1.10V

0.90V

Not supported

supported

1-16S

12. 0A

2.00V

2.46V

Not supported

1.90 V

1.8 0V

Not supported

supported

1-12S

12.0A

3.20V

3.65V

3.30V

2.90V

2.60V

supported

supported

1-6S

12.0A

3.60V

4.10V

3.70V

3.20V

2.90V

supported

supported

1-6S

12.0A

3.70V

4.20V

3.80V

3.30V

3.00V

supported

supported

1-6S

12.0A

3.80V

4.35V

3.85V

3.40V

3.10V

supported

supported

1-6S

12.0A

Please be cautious when selecting the charging parameters for dierent types of batteries;

otherwise, the batteries may be damaged. Incorrect setting can result to re and/or explosion.

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How to Conrm Charging Current

It is very important to know the maximum charging current of the battery as excessive current

could inuence the life span of battery and/or cause damages. In addition, excessive current can

cause heating and/or explosion of the battery during the charging process.

The charging and discharging capacity of battery is usually marked with C value. Multiplying the

charging C value and battery capacity equals to the maximum charging current supported by

the battery. For example, for a 1000 mAh battery with a charging capacity of 5C, the maximum

charging current would be 1000*5=5000mA; therefore, the maximum charging current is 5A.

For a lithium battery, if it is impossible to conrm the supported charging C value, please set the

charging current below 1C for the sake of its (lithium battery) safety.

The reference relation between C value and charging time: charging time ≥60 minutes/

charging C value (it therefore needs around 60~70 minutes to complete charging with 1C). Due

to dierences in battery conversion eciency, the period to complete the charging might be

extended.

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Task Setting

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Connect the charger to the power supply and wait for the system to complete the self testing.

Connect the battery to the charger under standby interface, and short press the shuttle key to

make the task setting menu to pop up. The items in the menu are as follows:

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Task Setting

The working mode of the charger is series charging; you must therefore connect it to the output

line of the battery while charging. For a lithium battery, it is highly suggested that the balanced

interface should be connected to carry out balanced charging to accurately monitor the voltage

of each cell and balance the ones with bad consistency.

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If battery voltage is lower than storage voltage, charger will charge battery to storage voltage.
If battery voltage is higher than storage voltage, charger will discharge battery to storage
voltage. In order to save storage time, battery might not be accurately balanced, this is normal
and there will not do any harm to battery.

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Activation and restoration functions of excessive discharged battery
When the charging task begins, one tenth of the setting current should be applied to activate
and restore the battery if the cell voltage is tested to be lower than the pre-charge voltage; on
the other hand, it should be adjusted to a rated voltage for charging when the cell voltage is
higher than the pre-charge voltage. This design can protect excessively discharged batteries,
as well as conduct activation and restoration.

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The charger is equipped with a function of measuring the cells’ internal resistance, which is
only applied when conducting balanced charging. The cell voltage should be measured and
calculated within 2 to 3 minutes after the charging task has been initiated. The battery internal
resistance can slightly vary under dierent electric quantities while the measured resistance
value is usually relatively low as the electric quantity is large.

The charging current should be adjusted instantly as the charger measures the internal
resistance of the battery; therefore, it is normal phenomenon for acute change of current to
occur during charging.

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Task Setting

Since the way of internal resistance measurement varies, it cannot be realized to measure the
absolute value as professional internal resistance tester does. Therefore, the internal resistance
value can only be referred to when conducting horizontal comparisons, such as judging the
consistency of the cells’ performance or making comparisons of the performance of dierent
cells. The charging current is an inuential factor for measuring internal resistance; batteries
with large capacity and small internal resistance would relatively need large charging currents
to accurately measure the internal resistance.

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During the charging process, the screen displays an orange marking which turns into green or
blue as the charging is completed. When the charging completes, the cells’ voltage dierence
should be smaller than 20mV, while the screen marking turns into green. Therefore, if the
battery is in urgent use, it’s okay to stop charging. The charger should continue to balance the
battery if the charging process is not terminated, and the screen light turns blue, since the
voltage dierence is smaller than 10mV. Additionally, the charger should continue to carry out
accurate balancing of the battery after the light turns blue. If the consistency of the cells is
excellent, the screen light should skip color green to become blue as the charging is complete.

After the charging is complete, it is normal for voltage decline to occur due to dierent perfor­mances. As the number of the charge cycle grows, the performance decreases, and the
voltage decline phenomenon becomes obvious. To charge the battery with a larger current
would also cause a more obvious voltage decline after the charging is complete.

NB: When charging the battery in a hurry in outdoors, it is okay to stop charging when the
screen light turns green. If there is enough time and the cells are assumed to be well balanced,
it is better to stop charging when the screen light turns blue; alternatively, wait a little longer
after that to gain more accurate balance eects.

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Task Setting

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While two batteries are the same type and same cells, complete charging setting. press
bothselect button to initiate task.
Both channels operate under same parameters and would be assigned 50/50 from total
power.

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single channels operation can reach 200w
both channels simultaneously initiate task would get 100w for each
both channels non-simultaneous initiate task, the channel which initiate later will get 150w, if
task needs less than150w, remaining power will go into the other channel automatically.
During dual Charging operation, current adjust in a channel will get that channel 150w priority,
if task needs less than 150w, remaining power will go into the other channel automatically.

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Operative Skills

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1. during operation, short press select-button to adjust charging/discharging current;

2. long press select-button, to quick stop current operation or to enter setting menu for
corresponding channel;

3. While two batteries are the same t ype and same cells, complete charging setting. press both
select-button simultaneously to initiate task. Both channels operate under sameparameters
and would be assigned 50/50 from total power.

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Working Parameters Display

Battery type – string number

Current task status

Cell voltage

Task operation time

Device Name

Current channel

Capacity chargedPresent current

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Scroll the shuttle key during operation can switch the display information in the lower half

of the screen, which are cell voltage, cell internal resistance and working parameter. The cell

voltage and internal resistance can only be displayed in the mode of balance charging (3

minutes).

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Working Parameters Display

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Long press the shuttle key in standby interface to make the system default menu pop up, and

the items are as follows:

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Buzzer volume: the default is OFF, the operation sound would be blocked, but not the sound

of error warning.

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Error in power on self-testing: the charger can automatically carry out a self-testing when
connected to a power supply. A self-testing error warning sound should be heard when the
charger is connected to the battery; power on after removing the battery for 5 minutes.

Error for abnormal battery connection: pull out and plug in the battery again to ensure all
connections are reliably contacted; if the error reminder continues, please check whether the
metal parts on the battery interface are oxidized or burned resulting in unreliable connection.

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D2 smart charger conforms to relevant EC command and relevant commands in B: 2010, CHAP-

TER 15, FCC

Testing standards

EN 61000-6-3:2007 + A1:2011

EN 61000-6-3:2007

For electronic products with this marking in their manuals, please separately dispose

them with family garbage. When a charger gets spoilt and cannot be used anymore,

please take it to a nearby garbage station or recycle center.

Result

YES

YES

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XXX/JTEU/DP

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Shenzhen ISD Technology CO.,LTD

TM

Address:!Rm 302, Building 11th, Pingshan Creative Industry Park,

Pingshan 1 Road, Nanshan District, Shenzhen, PRC Email:[e-mail]

Changes in specications and data will not be further noticed.