Expert Ld300 User manual

LD300 Intelligent Balance

Charger/ Discharger Manual

Thank you for your purchasing the Expert LD300 Charger.This is a rapid charger/discharger

computerised with microprocessor and specialised operating software.Please read this

manual completely and attentively before using.

Expert

voltage level: 1.2V/cell

allowable fast charge current: 1C~2C

depends on the performance of cell

discharge voltage cut off level: 0.85V/cell(NiCd), 1.0V/cell(NiMH)

voltage level: 3.6V/cell

max.charge voltage: 4.1V/cell

allowable fast charge current: 1C or less

min.discharge voltage cut off level: 2.5V/cell or higher

voltage level: 3.7V/cell

max.charge voltage: 4.2V/cell

allowable fast charge current: 1C or less

discharge voltage cut off level: 3.0V/cell or higher

voltage level: 3.3V/cell

max.charge voltage: 3.6V/cell

allowable fast charge current: 4C or less(e.g. A123M1)

discharge voltage cut off level: 2.0V/cell or higher

voltage level: 3.8V/cell

max.charge voltage: 4.35V/cell

allowable fast charge current: 1C or less

min.discharge voltage cut off level: 3.0V/cell

voltage level: 2.0V/cell (Lead-acid)

max.charge voltage: 2.46V/cell

allowable fast charge current: 0.4C or less

discharge voltage cut off level: 1.50V/cell or higher

NiCd/

NiMH

Lilo

LiPo

LiFe

LiHV

(Leadacid)

Contents

1. Specification ................................................................................ 02

2. Exterior of the unit....................................................................... 03

3. Warnings and safety notes......................................................... 04

4. How to Confirm Charging Current............................................. 07

5. Charge Mode Selection............................................................... 08

6. Program Setting ...........................................................................11

7. Showing Screen .......................................................................... 12

8. System Setting ............................................................................ 15

9. Alarm and Error Inforamtion: ..................................................... 17

10. Warranty and Service.................................................................. 18

Expert

voltage level: 1.2V/cell

allowable fast charge current: 1C~2C

depends on the performance of cell

discharge voltage cut off level: 0.85V/cell(NiCd), 1.0V/cell(NiMH)

voltage level: 3.6V/cell

max.charge voltage: 4.1V/cell

allowable fast charge current: 1C or less

min.discharge voltage cut off level: 2.5V/cell or higher

voltage level: 3.7V/cell

max.charge voltage: 4.2V/cell

allowable fast charge current: 1C or less

discharge voltage cut off level: 3.0V/cell or higher

voltage level: 3.3V/cell

max.charge voltage: 3.6V/cell

allowable fast charge current: 4C or less(e.g. A123M1)

discharge voltage cut off level: 2.0V/cell or higher

voltage level: 3.8V/cell

max.charge voltage: 4.35V/cell

allowable fast charge current: 1C or less

min.discharge voltage cut off level: 3.0V/cell

voltage level: 2.0V/cell (Lead-acid)

max.charge voltage: 2.46V/cell

allowable fast charge current: 0.4C or less

discharge voltage cut off level: 1.50V/cell or higher

1. Specification

Input Voltage DC 7-28V

Input Current Max.15.0A

Charge Current 0.1-16.0A

Discharge Current 0.1-3.0A

Charge Power Max.300W (@Input>21V)

Discharge Power Max.5.0W

Balance Current Max.1A

Balance Accuracy ±0.01V

Charging cells NiMH/NiCd: 1-16cells

LiPo/LiFe/LiIo/LiHv: 1-6cells

Pb Battery Voltage 2-24V

Size 80*80*32mm

Weight 120g

LD300

5 6

2. Exterior of the unit

1Screen

2Input port

3Update port

4Opto-sensor

5Select key

6Balance port

7Battery port

Select key

Long press: Enter system setting /

terminate current task

Short press: Enter task setting / confirm

current setting

Horizontal scroll: Select menu

Expert

3. Warnings and safety notes

• Do not use the charger in unattended; in case of any functional abnormity, please stop

using it and refer to the manual.

• Keep the charger away from dust, damp, rain and heat, direct sunshine place.

• Power input of the charger is direct current 7-28V.

• Please place the charger on a head-resistant, non- inflammable and non-conductive

surface. Never place them on the car’s seats, carpet or other similar place. Keep all the

inflammable volatile materials well away from operation areas.

• Make sure the cooling hole in the bottom of the charger is uncovered while in use, and

ensure the cooling fan ventilated.

• Please setting the data correct when charge and dischage. Incorrect setting will damage to

the charger and battery, especially for the Li-XX battery, it will be result to explosion if the

battery over charge.

• To avoid short-circuits between the charger cables, please connect the cable and charger

first, then connect the battery.Reverse the operation when disconnecting.

• You have to pay attention to verify the capacity and the voltage of the Lithium battery pack.

It may be composed of parallel and series connection mixed. In parallel link the capacity of

the battery pack is multiplied by the number of cells but the voltage remains same. That

kind of voltage imbalance causes a fire or explosion during charge process. We

recommend you compose the Lithium battery pack in series only.

LD300

voltage level: 1.2V/cell

allowable fast charge current: 1C~2C (depends on the performance of cell)

discharge voltage cut off level: 0.85V/cell (NiCd), 1.0V/cell (NiMH)

voltage level: 3.6V/cell

max.charge voltage: 4.1V/cell

allowable fast charge current: 1C or less

min.discharge voltage cut off level: 2.5V/cell or higher

voltage level: 3.7V/cell

max.charge voltage: 4.2V/cell

allowable fast charge current: 1C or less

discharge voltage cut off level: 3.0V/cell or higher

voltage level: 3.3V/cell

max.charge voltage: 3.6V/cell

allowable fast charge current: 4C or less (e.g. A123M1)

discharge voltage cut off level: 2.0V/cell or higher

voltage level: 3.8V/cell

max.charge voltage: 4.35V/cell

allowable fast charge current: 1C or less

min.discharge voltage cut off level: 3.0V/cell

voltage level: 2.0V/cell(Lead-acid)

max.charge voltage: 2.46V/cell

allowable fast charge current: 0.4C or less

discharge voltage cut off level: 1.50V/cell or higher

NiCd/

NiMH

Lilo

LiPo

LiFe

LiHV

(Lead-

acid)

Expert

Discharge

• The typical purpose of discharge is to determine the residual capacity of the battery, or to

lower the voltage of battery to a deﬁned level. When you discharge the battery you also

have to pay attention on the process same as charging. To avoid the battery becoming

deep-discharged, set the ﬁnal discharge voltage correctly. Lithium batteries should not be

deep-discharged to lower than the minimum voltage, as this leads to a rapid loss of

capacity or a total failure. Generally, you do not need to discharge Lithium battery

voluntarily.

• Some rechargeable batteries are said to have a memory effect. If they are partly used and

recharged before the whole charge is drawn out, they‘remember’ this and next time will

only use that part of their capacity. This is a ‘memory effect’. NiCd and NiMH batteries are

voltage level: 1.2V/cell

allowable fast charge current: 1C~2C

depends on the performance of cell

discharge voltage cut off level: 0.85V/cell(NiCd), 1.0V/cell(NiMH)

voltage level: 3.6V/cell

max.charge voltage: 4.1V/cell

allowable fast charge current: 1C or less

min.discharge voltage cut off level: 2.5V/cell or higher

voltage level: 3.7V/cell

max.charge voltage: 4.2V/cell

allowable fast charge current: 1C or less

discharge voltage cut off level: 3.0V/cell or higher

voltage level: 3.3V/cell

max.charge voltage: 3.6V/cell

allowable fast charge current: 4C or less(e.g. A123M1)

discharge voltage cut off level: 2.0V/cell or higher

voltage level: 3.8V/cell

max.charge voltage: 4.35V/cell

allowable fast charge current: 1C or less

min.discharge voltage cut off level: 3.0V/cell

voltage level: 2.0V/cell (Lead-acid)

max.charge voltage: 2.46V/cell

allowable fast charge current: 0.4C or less

discharge voltage cut off level: 1.50V/cell or higher

NiCd/

NiMH

Lilo

LiPo

LiFe

LiHV

(Leadacid)

voltage level: 1.2V/cell

allowable fast charge current: 1C~2C (depends on the performance of cell)

discharge voltage cut off level: 0.85V/cell (NiCd), 1.0V/cell (NiMH)

voltage level: 3.6V/cell

max.charge voltage: 4.1V/cell

allowable fast charge current: 1C or less

min.discharge voltage cut off level: 2.5V/cell or higher

voltage level: 3.7V/cell

max.charge voltage: 4.2V/cell

allowable fast charge current: 1C or less

discharge voltage cut off level: 3.0V/cell or higher

voltage level: 3.3V/cell

max.charge voltage: 3.6V/cell

allowable fast charge current: 4C or less (e.g. A123M1)

discharge voltage cut off level: 2.0V/cell or higher

voltage level: 3.8V/cell

max.charge voltage: 4.35V/cell

allowable fast charge current: 1C or less

min.discharge voltage cut off level: 3.0V/cell

voltage level: 2.0V/cell(Lead-acid)

max.charge voltage: 2.46V/cell

allowable fast charge current: 0.4C or less

discharge voltage cut off level: 1.50V/cell or higher

LD300

4. How to Confirm Charging Current

It is very important to know the maximum

charging current of the battery as

excessive current could influence the life

span of battery and damages the battery.

In addition, excessive current will cause

heating and even 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 2000 mAh battery with a

charging capacity of 5C, the maximum

said to suffer from memory effect. They prefer complete cycles; fully charge then use until

empty, do not recharge before storage-allow them to self-discharge during storage. NiMH

batteries have less memory effect than NiCd.

• The Lithium battery prefers a partial rather than a full discharge. Frequent full discharges

should be avoided if possible. Instead, charge the battery more often or use a larger

battery.

Those warnings and safety notes are particularly important. Please follow the

instructions for a maximum safety; otherwise the charger and the battery can be

damaged violently. And also it can cause a fire to injure a human body or to lose the

property.

voltage level: 1.2V/cell

allowable fast charge current: 1C~2C

depends on the performance of cell

discharge voltage cut off level: 0.85V/cell(NiCd), 1.0V/cell(NiMH)

voltage level: 3.6V/cell

max.charge voltage: 4.1V/cell

allowable fast charge current: 1C or less

min.discharge voltage cut off level: 2.5V/cell or higher

voltage level: 3.7V/cell

max.charge voltage: 4.2V/cell

allowable fast charge current: 1C or less

discharge voltage cut off level: 3.0V/cell or higher

voltage level: 3.3V/cell

max.charge voltage: 3.6V/cell

allowable fast charge current: 4C or less(e.g. A123M1)

discharge voltage cut off level: 2.0V/cell or higher

voltage level: 3.8V/cell

max.charge voltage: 4.35V/cell

allowable fast charge current: 1C or less

min.discharge voltage cut off level: 3.0V/cell

voltage level: 2.0V/cell (Lead-acid)

max.charge voltage: 2.46V/cell

allowable fast charge current: 0.4C or less

discharge voltage cut off level: 1.50V/cell or higher

Expert

Program settings

Battery type

Select mode

Cell voltage

Cell count

Current setting

Start mode

15.8 A

15.9 A

16.0 A

5. Charge Mode Selection

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

battery while connect to the battery. For the lithium battery, in orde to promise charger can

monitor the voltage of each cells and balance the ones which bad consistency, it is highly

suggested that connect the balance port to enter balance charge. The charger will alarm

before charge if do not connect the balance port.

charging current would be

2000*5=10000mA; therefore, the maximum

charging current is 10A.

For lithium battery, if it can not confirm the

supported charging C value, please set the

charging current below 1C for the sake of

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 the difference in

battery conversion effciency, the time might

be extended.

LD300

LiPo/LiFe/

LiIo/LiHv

NiMH/NiCd

Balance

Charge Mode

Charge

Mode

Fast Charge

Mode

Discharge

Mode

Storage

Mode

    

 

 

 

 

decrease the CV and balance process.

Actually, when the fast charge process

finished, the charging current will go to 1/5

of initial value. The charging capacity may

be a bit smaller than normal charging

capacity, but the charging time will be

decreased.

Li-XX Battery Storage Charge Mode

This function is for making each types of

Li-XX battery to adjusted the corresponding

voltage (Lipo: 3.85V, Lihv: 3.85V, Lilo: 3.75V,

LiFe: 3.3V) and keep the Li-XX battery

storage for a long time.When selecting

Li-XX Battery Balance Charge Mode

The purpose of this mode is that to making

each cell to full voltage after finish charge.

The inner system will monitor the voltage of

each cell and control the current of each

cell, then to balance the individual cell

voltage. It not only has to connect the

battery to the output port of the charger but

also to the balance port when charging.

Battery Fast Charge Mode

The charge current gets smaller and smaller

as the charge finished. The fast charging

program will finish charge in advance and

Expert

Program settings

Battery type

Select mode

Cell voltage

Cell count

Current setting

Start mode

BalanceCharge

Charge

FastCharge

Discharge

Storage

storage mode, automatic charging task can

be initiated if the battery voltage is lower

than the preset storage voltage, If the

battery voltage is higher the preset storage

voltage, then it will automatic discharging. In

order to save time, the voltages of cells

should not be accurately balanced; however,

it is normal phenomenon that there may be

some errors between cell voltage and preset

value as the tasks are completed

Li-XX Battery Discharge Mode

The purpose of discharging is to confirm the

rest capacity of battery or the healthy

condition of battery. To avoid

over-discharging, please set up the right

rated discharge voltage before you

discharge the battery. The voltage of Lithium

battery shouldn’t be lower than the lowest

voltage. Due to it will damage capacity fast.

Normally, there is not necessary to

discharge Lithium battery. For safety reason,

discharge current data display on screen

couldn’t exceed to the rated max discharge

current, and the rated voltage couldn’t lower

than voltage level recommended by

manufactory to avoid over-discharging.

Activation and restoration functions of

excessive discharged battery

When the charging task begins, a 0.1A

current should be applied to activate and

restore the battery if the cell voltage which

checked to be lower than the pre-charge

voltage level: 1.2V/cell

allowable fast charge current: 1C~2C (depends on the performance of cell)

discharge voltage cut off level: 0.85V/cell (NiCd), 1.0V/cell (NiMH)

voltage level: 3.6V/cell

max.charge voltage: 4.1V/cell

allowable fast charge current: 1C or less

min.discharge voltage cut off level: 2.5V/cell or higher

voltage level: 3.7V/cell

max.charge voltage: 4.2V/cell

allowable fast charge current: 1C or less

discharge voltage cut off level: 3.0V/cell or higher

voltage level: 3.3V/cell

max.charge voltage: 3.6V/cell

allowable fast charge current: 4C or less (e.g. A123M1)

discharge voltage cut off level: 2.0V/cell or higher

voltage level: 3.8V/cell

max.charge voltage: 4.35V/cell

allowable fast charge current: 1C or less

min.discharge voltage cut off level: 3.0V/cell

voltage level: 2.0V/cell(Lead-acid)

max.charge voltage: 2.46V/cell

allowable fast charge current: 0.4C or less

discharge voltage cut off level: 1.50V/cell or higher

NiCd/

NiMH

Lilo

LiPo

LiFe

LiHV

(Lead-

acid)

LD300

Program settings

Battery type

Select mode

Cell voltage

Cell count

Current setting

Start mode

4.18 V

4.19 V

4.20 V

4.21 V

4.22 V

4.23 V

6. Program Setting

Connect the charger to the power supply

and wait for the charger to finish the self

testing. Connect the battery to the

charger under standby interface, and

short press the Select key to show the

program setting menu. The items in the

menu are showing as follows:

Recommended Setting Value: 4.20V

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.

voltage level: 1.2V/cell

allowable fast charge current: 1C~2C (depends on the performance of cell)

discharge voltage cut off level: 0.85V/cell (NiCd), 1.0V/cell (NiMH)

voltage level: 3.6V/cell

max.charge voltage: 4.1V/cell

allowable fast charge current: 1C or less

min.discharge voltage cut off level: 2.5V/cell or higher

voltage level: 3.7V/cell

max.charge voltage: 4.2V/cell

allowable fast charge current: 1C or less

discharge voltage cut off level: 3.0V/cell or higher

voltage level: 3.3V/cell

max.charge voltage: 3.6V/cell

allowable fast charge current: 4C or less (e.g. A123M1)

discharge voltage cut off level: 2.0V/cell or higher

voltage level: 3.8V/cell

max.charge voltage: 4.35V/cell

allowable fast charge current: 1C or less

min.discharge voltage cut off level: 3.0V/cell

voltage level: 2.0V/cell(Lead-acid)

max.charge voltage: 2.46V/cell

allowable fast charge current: 0.4C or less

discharge voltage cut off level: 1.50V/cell or higher

Expert

7. Showing Screen

Controlling the select key to switch the displayed information in the lower half of the screen,

which is cell voltage and working parameters.

V Delta-peak sensitivity: The program of tunr-off charge current automatically. The principle

of operation is that the charge current will turn off and finish charge when the battery voltage

increased to the highest and start to decrease. If the trigger voltage is setting too higher, it

will lead to the dangerous of over- charge, if it is setting too lower, then the system will result

in termination of charge advanced.

Alarm: The Lihv model is just support 4.35V Li-battery, it is forbid to use this mode to charge other

type batteries and forbid to charge the Lipo battery which the end voltage is 4.20V, otherwise it will lead

to burn or explosion.

Battery type

Select Mode

End Voltage

Cell Count

Current Setting

Start Mode

Back

LiPo, LiFe, LiIo, LiHv, NiMH, NiCd, Pb

Balance Charge, Charge, Fast Charge, Discharge, Storage

End Voltage slight adjustment, rang ±0.05V;

Discharge End Voltage slight adjustment, rang ±0.3V

Li-XX battery: 1-6cells, NiMH/NICD: 1-16cells, PB: 1-12cells

Charge current: 0.1-16A , Discharge current: 0.1-3A

Start

Back

LD300

00:00:39 56%

LiPo-6S Balance Charging

11.2V/240W 1.79Wh

22.5V/225W 0pcs

70℃ 2pcs

0A79mAh

Battery percentage

Capacity charged

Total output energy after power

Finished charging times after power

Finished charging times in

grand total

Program operation

time

Current

Working status

Input Voltage/ Power

Output Voltage/Power

Working temperature

Fast balance charge status:

Li-XX battery IR Test:

The charger have the IR tesing function and it will just work when balance charging. It will

test and calculate the IR value after charging 2 minutes later. 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 dierent 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.

Expert

00:10:18 100%

LiPo-6S Bal.Charging done

4.20V 4.20V

1A3.88Ah

Accurate Balance Status:

Battery percentage

Capacity charged

Program operation

time

Current

Working status

Each cells voltage

00:10:18 62%

LiPo-6S Balance Charging

2.3mΩ 2.3mΩ

2.4mΩ 2.4mΩ

2.3mΩ 2.3mΩ

0A79 mAh

Battery percentage

Capacity charged

Program operation

time

Current

Working status

Each battery IR value