Green BM6018 User manual

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BM6018
Battery Tester-Charger-Discharger-Maintainer
User Manual
REV1.1
Revision Date：December 2022

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BM6018 is an intelligent instrument that integrates the four functions of battery testing(analyzing),
charging, discharging and maintenance. It is designed with a portable plastic shell, and with color
TFT displayer and silicon touch keys.
The BM6018 is a powerful assistant for electronic engineers. It can be used to perform
performance testing, capacity testing, characteristic curve measurement, and activation and
maintenance of long-term storage batteries for various commonly used rechargeable batteries.
BM6018 is widely used for performance testing and routine maintenance of most rechargeable
batteries in many portable electronics/electrical devices (such as smart phone, tablet PC, drone,
e-bike, e-scooter, power tool, car …). Battery voltage range is 2V ~ 16V capacity range 1Ah~40Ah,
and battery types cover Li-ion /LiFePO4 /Pb-Acid /NiMH.
The four main functions are
1. Charging: can set constant current & constant voltage for charging process.
2. Discharge: can set constant current value & cut-off voltage for discharging.
3. Test/analyze: can measure battery voltage, internal resistance, SOC, SOH,
true effective capacity Ah value and charge/discharge curves.
4. Maintenance: for the battery that has been left standing or in standby for
more than 6 months, do a auto maintenance process to keep
or recover battery good active capacity and health life.
Input of BM6018 is AC100~240V, universal global voltage range. The adjustable range of output
constant current charging current is 0.4A~4.0A ; The charging limit voltage and the discharge cut-
off voltage can also be adjusted under 3V~18V. It has a variety of abnormal safety protection
measures such as battery reverse connection, wrong connection, short circuit, overvoltage,
undervoltage, over-current and over-current heat.
BM6018-BL has Bluetooth function, through which users can view the historical charging and
discharging data and curves with their phones or PC.
Features

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View of product
AC Input port
LCD Displayer
Buttons：
Enter: functions/confirm
Up: increase/page up
Down: decrease/page down
Battery cable connector
Battery clips

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1. Connect battery: Please make sure the voltage of the battery un does not exceed 30V,
find red and black alligator clip cable, insert it’s yellow plug to BM6018,
let red clip connect to positive pole of battery, and black clip connect
to negative pole.
If the battery is connected correctly and there is still electricity in the
battery, the LCD screen of BM6018 will be following displayed
2. Connect AC power:Ifyou only want to test battery parameters quickly, you can skip
to step 3 directly, without connecting to AC power.
To charge, discharge and maintain battery, or accurately
measure the battery capacity Ah value and healthy SOH value,
please insert mains power (AC100V~240V), if AC power is
connected, LCD displays the following information:
How to use
BM6018 Battery 4-in-1
AC: NG Battery: Ok
1. Set battery param
2. Run last param
3. Set system param
BM200 Battery 4-in-1
AC: Ok Battery: Ok
1. Set battery param
2. Run last param
3. Set system param

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Note: Following examples are all based on 3.6V 8000mAh Li-ion battery.
3.Set Battery Parameter：BM6018 can be used for many types batteries. To get the accuracy test
results and charge safety, at first you should set the connected battery
parameters. If the battery connected is the same as last time, please
refer to Clause 3.2; Otherwise, please execute the following
3.1 select [1. Set battery param] (When the background of this item is highlighted, it means
selected, the same below), press <Enter> Key，screen will be:
[Battery type]: Select of one from LiFePO4, Li-Ion, Pb-Acid, NIMH, NICD,
[Battery voltage]: Select battery nominal voltage from 2.0V ~ 16V, marked on battery label.
[Battery capacity]: Input the Ah value of battery capacity, which is marked on battery label.
[Charge voltage]: Charge voltage limit during charging process, marked on battery label.
This step can be skipped, BM6018 will auto set a good default data.
[Charge current]: Set a constant current for charging process, recommend is 0.1C~0.5C.
This step can be skipped, BM6018 will auto set a good default data.
[Battery in-resist]: Set the battery internal resistance, which is listed on battery datasheet.
This data is only used for evaluate battery SOH. If you have no data,
this step can be skipped, BM6018 will auto set a general default data.
[Dischar current]: Set a constant current for discharge process, recommend is 0.1C~0.5C.
This step can be skipped, BM6018 will auto set a good default data.
[Dischar cut-off]: Set cut-off voltage for discharge process. Recommend is 0.8*rating voltage.
This step can be skipped, BM6018 will auto set a good default data.
Battery type : Li-ion
Battery voltage : 3.6 V
Battery capacity : 8.0 Ah
Charge voltage : 4.20 V
Charge current : 4.0 A
Battery in-resist : 5 mΩ
Dischar current : 2.0 A
Dischar cut-off : 3.00 V
Save Return

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Note: [Battery type], [Battery voltage], and [Battery capacity] is necessary for
setting process, the rest 5 items can be skipped if you have no special request.
Press <Up> or <Down> keys to highlight the items, press <Enter> key to
Confirm selection, then press <Up> or <Down> change data, press<Enter>
when the data is correct as you wanted. After that, press <Save>. Then
screen will enter 3.3 step.
3.2 Select [2. Run last param], if the battery data is same as last time for BM6018.
Press <Up> or <Down> keys to highlight the items, press <Enter> key to
Confirm selection, Then screen will enter 3.3 step.
3.3 After done 3.1 or 3.2 step, screen will be following:
If the parameters are correct, users can select the four listed in the menu according to
their task requirement functions. Use <Up>, <Down> and <Enter> to select and run.
If errors are found in the preview parameters, please press <Enter> for more than 2
seconds, and the system will return to the home page to reset battery parameters.
4. Main functions
4.1 [Test]: Measure battery voltage, internal-resistance, SOC and SOH within 5 seconds
SOC, means State-of-charge of battery, range is 0 ~ 100%.
SOH, means State-of-health of battery, range0~100%.
Setting Preview
Battery ：3.6V 8Ah Li-ion
Charge ：4.20V 4.0A
Discharge ：3.0V 2.0A
Test Charge Discharg Maint

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Run [Test] function, after 5 seconds, screen will display test results:
The fast tested SOC percentage is built based on the measured battery voltage and
equipment learning. This SOC is calculated by looking up the voltage-SOC table.
This fast tested SOC error may be relatively higher.
The fast tested SOH, battery health status, is also based on the tested internal
resistance of battery. This SOH is calculated by looking up the resistance-SOH table.
This fast tested SOC error also may be relatively higher.
To obtain accurate SOC and SOH, please select [Maintenance] function and run a cycle.
4.2 [Charge]: According to the selected battery type and charging parameters, the
system automatically calls the best charging process curve. When charging,
the LCD displays the following information:
Battery voltage
Battery voltage
3.6V 8.0Ah Li-ion
Test mode
SOC. : 21%
SOH. : Good
RES. : 5.2 mΩ
Time run ：----
Charged ：----
3.6V 8.0Ah Li-ion
SOC. : 91%
SOH. : Good
RES. : 5.2mΩ
Time run ：4h 33m
Charged ：80Ah
Battery current
Charging
3.531V
4.187V
4.05 A
1h54m
6.4 Ah

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After battery is fully charged, the display screen will two different display contents:
After the battery is fully charged, to view the charging curve of the battery, please press
<Up> Key, screen will display the complete battery charging curve, as follows:
Press <Up> or <Down> key again, you can switch the graph and list pages alternately
4.3 [Discharge]: Automatically discharge according to the selected parameters;
During discharging process, screen will be following view:
3.6V 8.0Ah Li-ion
SOC. : 100%
SOH. :
98.7%
RES. :
5.2mΩ
Time run
：
2h 46m
Charged
：
7.91 Ah
Full charged
from empty
test Capacity
8.07 Ah
3.6V 8.0Ah Li-ion
SOC. : 100%
SOH. :
98.0%
RES. :
5.2mΩ
Time run
：
2h 08m
Charged
：
5.17 Ah
Full charged
from no-empt
est. Capacity
8.01 Ah
When you charge battery from empty state, after
full charged, you will get an accurate capacity.
When you charge battery from non-empty state,
after full charged, it can get an estimated capacity
Charge curve
voltage
time
SOC. : 30%
SOH. :
Good
RES. :
5.2mΩ
Time run
：
2h 33m
Discharg
：
5.01Ah
3.6V 8.0Ah Li-ion
Discharging
3.587V
2.05 A

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After the battery is emptied, the display screen will There are two different display contents:
After the battery is fully charged, to view the charging curve of the battery, please press
<Up> Key, screen will display the complete battery charging curve, as follows:
Press <Up> or <Down> key again, you can switch the graph and list pages alternately
4.4 [Maintain]: Automatic maintenance based on selected battery parameters:
For batteries that have been idle for more than 6 months or have been floating
charged for a long time, it should be regularly (preferably every 6 months or so)
standard charging and discharging maintenance process. The standard
maintenance procedure is to use 0.2C current first fully charge the battery - then
drain the battery with 0.1C current - then use 0.1C charge current to full fill the
battery. After finished this maintenance process, the vitality, the life time and the
effective capacity of battery will be protected and improved to the maximum.
3.6V 8.0Ah Li-ion
SOC. : 0%
SOH. :
98.7%
RES. :
5.2mΩ
Time run
：
4h 03m
Discharg ：8.05Ah
Discharged
from full
test Capacity
8.07 Ah
3.6V 8.0Ah Li-ion
SOC. : 0%
SOH. :
97.7%
RES. :
5.2mΩ
Time run
：
2h 31m
Discharg ：5.01 Ah
Discharged
from non-full
est. Capacity
97.7 Ah
When discharge battery from full charged state, after
discharged empty, it will get an accurate capacity.
When discharge battery from non-full state, after
discharged empty, it will get an estimated capacity.
discharge curve
voltage
time
4.20V
3.40V
3.60V

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After starting the automatic maintenance function, the LCD screen displays the
status message of "Maintain **", here ** refers to CH--charging, DS--discharging,
OK-- completion all maintenance jobs.
Examples are as follows:
Generally, a complete maintenance process takes about 30 hours. After the process is
completed, the battery capacity Ah value is the most accurate. Press <Up> key, the
display screen will display the recorded complete battery charging/discharging curves.
Tips: During charging, discharging, maintenance and other processes, the user can press <Enter>
briefly Pause, press again to resume; Long press <Enter> for 2 seconds to terminate the
current process and return to the initial main page
4. Bluetooth function (Optional when order):
BM6018-BL has Bluetooth communication function, through which users can use mobile phones,
PAD or PC checks the historical charging and discharging data and curves of the battery pack,
also remotely sets and controls BM** working status.
The BM** series provides Android APP and PC Windows applications software. Please refer to
the appendix "Introduction to the Use of Android App of BM** Battery Tester" document.
Note: Once the BM** device is successfully connected to the mobile phone, tablet or PC through
Bluetooth, the function keys on the BM** panel will be temporarily frozen and disabled. At this
time, only the function keys in the mobile phone or PC APP can control the battery settings and
function operation of the BM**. When the APP program is finally closed, the panel keys of the
BM** can resume their normal functions.
SOC. : 30%
SOH. :
Good
RES. :
5.2mΩ
Time run
：
7h 03m
Discharg
：
5.61 Ah
3.6V 8.0Ah Li-ion
Maintain DS
3.587V
0.81 A

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Items \ model
BM6018
AC input power
100~240V 50HZ
Suitable battery type
Pb-Acid(AGM, VRLA, SLA, Gel), Li-Ion, LiFePO4, NiMH, NiCd
Charging method
PreCharge -- C.C main charge -- special charge CV or CC -- end charge
Suitable battery capacity
1Ah ~ 60Ah
Suitable battery voltage*1
2.0V ~ 16.0V (For 24V battery, can only provide test function, no charge)
Charge/discharge voltage set
2.0V ~ 18.0V
Charge current set
0.4A ~ 4.0A (60W Max.)
Discharge current set
0.2A~2.0A (8W Max.)
Temperature compensation
Auto compensation charge voltage according to environment temperature
Voltage test precision
+- 1.0%
Current test precision
+- 2.5%
Capacity test precision
+- 2.5%
Abnormal protection
Shorted, reversed, OVP, OCP, OLP, OTP,
Bluetooth function
-BL model have this function
Size and weight
160*88*35mm, 280g
Safety standard
CE, EN62368, EN61000
Specification

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Be sure to understand theinformation of the battery tobe chargedor discharged
accurately. If the parameters is set up incorrectly the battery may severely be
damaged. Especially Lithium battery can cause a fire or an explosion by over-
charging.
If any malfunction is observed immediately terminate the process and refer to
the operation manual.
Keep away the unit from dust, damp, rain, heat direct sunshine and vibration.
DO not drop it.
This device and the battery to charge or discharge should be set up on a head-
resistant, non-inflammable and non-conductive surface. Never place them on a
car seat, carpet or similar. Keep all the inflammable volatile materials well away
from operating area.
The outer case slots and fan serve to cool the device so must not be covered
of enclosed. Provide good ventilation.
Please only use the official cable and clips, which are provided with device
package. Other type cable or clip will affect testing and charging accuracy.
Please clamp battery terminal poles tightly, otherwise the test result will be not
Accuracy.
Please don’t want to charge batteries when:
- The battery voltage exceeds the limit inspecification.
- Battery pack, which consists of different types ofcell.
- Non-rechargeable batteries (Explosion hazard).
- Faulty or damaged battery.
- Battery fitted with an integral charge circuit or special protection circuit.
- Batteries are electrically linked to user’s loads in device.
Safety notes