One-Tool BT300 User Manual

Battery Tester BT300

NOTES：

 Carefully read the user manual before using, and keep it well for future

reference.

 Carefully check the device parts list before using. For any doubt, contact

ONE-TOOL distributor immediately.

 Due to the product upgrade, tiny difference between the user manual and

the device will not be further noticed. Take the device as standard.

Battery Tester BT300

Copyright reserved! Without written agreement from ONE-TOOL, (Hereinafter refer
to " ONE-TOOL "), any company or person is not allowed to copy and duplicate this
user manual in any format (electronic, mechanical, video, record or other
formats).The user manual is designed only for ONE-TOOL products. Any
consequence caused by using the user manual to guide other device operation is
not under the responsibility of ONE-TOOL.

ONE-TOOL and its branches are not responsible for the fees and expense of the

device damage and loss due to private accident or from third party, misuse and
abuse of the device, unauthorized change and repair, or any operation and
maintenance not following ONE-TOOL standard.

ONE-TOOL is not responsible for device damage or problem due to the usage of

any optional parts or consumables instead of ONE-TOOL original products or

ONE-TOOL recognized products.

Declaration: Other product names mentioned in the user manual are aimed to
describe the device usage. The registered trademarks still belong to the original
company.

The device is for professional technicians or maintenance and repair personnel.

Registered Trademark

ONE-TOOL has registered its trademark in China, logo is ONE-TOOL. Other
ONE-TOOL trademarks, service marks, dot names, Icons, company names

mentioned in the user manual all belong to ONE-TOOL and its subsidiaries. In
those countries where ONE-TOOL trademark, service mark, dot name, icon,
company name not registered yet, ONE-TOOL declaim the right for its unregistered
trademark, service mark, dot name, icon, and company name. Trademarks of the
other products and company names mentioned in the user manual still belong to
original registered company. Without written agreement from the owner, no person is
allowed to use the trademark, service mark, dot name, icon and company name of

ONE-TOOL or of other mentioned companies. You can visit http://www.one-tool.net

or write to Customer Service Center of ONE-TOOL high-tech company at

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usage of the User Manual.

Battery Tester BT300

Table of Contents

Chapter 1 Product Summary ............................................................................. 1

1.1 Product Profile .................................................................................... 1

1.2 Product Function ................................................................................. 1

1.3 Technical Parameters .......................................................................... 2

1.4 Working Environment Requirement ..................................................... 3

Chapter 2 Tester Structure ................................................................................. 3

Chapter 3 Operation .......................................................................................... 4

3.1 Pre-Test............................................................................................... 4

3.1.1 Connect Tester ........................................................................ 4

3.1.2 Key Description ....................................................................... 4

3.2 Tester Startup .....................................................................................4

3.3 Battery Test ......................................................................................... 5

3.3.1 IN-VEHICLE or OUT-OF-VEHICLE ................................ ......... 5

3.3.2 Select Battery Charge State .................................................... 6

3.3.3 Select Battery Type ................................................................. 6

3.3.4 Battery System Standard and Rating ....................................... 8

3.3.5 Battery Test Result ................................................................ 10

3.4 Cranking Test .................................................................................... 12

3.5 Charging System and Rectifier Diode Test ........................................ 13

3.6 24V System Test ................................................................ ............... 16

Chapter 4 Daily Maintenance ........................................................................... 19

4.1 Eliminate Common Fault ................................................................... 17

4.1.1 Screen Not Light ............................................................................ 17

Battery Tester BT300

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Chapter 1 Product Summary

1.1 Product Profile

BT300 Battery Tester adopts currently the world's most advanced conductance
testing technology to easily, quickly and accurately measure the actual cold
cranking amps capability of the vehicle starting battery, healthy state of the
battery itself, and common fault of the vehicle starting system and charging
system, which can help maintenance personnel to find the problem quickly and
accurately, thus to achieve quick vehicle repair.

1. Test all automotive cranking lead acid battery, including ordinary lead acid
battery, AGM flat plate battery, AGM spiral battery, and Gel battery, etc.

2. Directly detect bad cell battery.

3. Polarity reverse connection protection, reverse connection will not damage

the tester or affect the vehicle and battery.

4. Directly test the battery with loss of electricity, no need to full charge before
testing.

5. Testing standards include currently the world's majority of battery
standards, CCA, BCI, CA, MCA, JIS, DIN, IEC, EN, SAE, GB.

6. Support multi-languages, customer can select different language package,
which includes: Chinese Simple, Chinese Traditional, English, Japanese,
Russian, Spanish, French, Italian, German, etc. Other languages can also
be customized according to user's need.

1.2 Product Function

Main functions of BT300battery tester include: battery test, cranking test,
charging test and other additional functions.

Battery test is mainly targeted to analyze the battery healthy status to
calculate the actual cold cranking capability of the battery and the aging extent,
which provide reliable analysis evidence for the test and maintenance of the
battery. It notifies the user to replace battery in advance when the battery
getting aged.

Cranking test is mainly to test and analyze the starting motor. Through testing

Battery Tester BT300

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the actual required cranking current and cranking voltage of the starting motor,
it can find out whether the starting motor works fine. There are several reasons
why the starting motor is abnormal: lubricating system fault causing the
starting loaded torque increasing or rotor friction of the starting motor causing
the increasing friction of the starting motor itself.

Charging test is to check and analyze the charging system, including
generator, rectifier, rectifier diode, etc., thus to find out whether the output
voltage of the generator is normal, the rectifier diode works fine and the
charging current is normal. Suppose one of the above mentioned parts is not in
normal situation, it will lead to over charge or incomplete charge of the battery,
thus the battery will be quickly damaged and also greatly shorten the using life
of other loaded electrical appliance.

Additional functions include: Set language, voltmeter and screen brightness
adjustment.

1.3 Technical Parameters

1. Cold Cranking Amps Measure Range:

Measure Standard

Measure Range

CCA

100-2000

BCI

100-2000

CA

100-2000

MCA

100-2000

JIS

26A17--245H52

DIN

100-1400

IEC

100-1400

EN

100-2000

SAE

100-2000

GB

100-1400

Battery Tester BT300

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2. Voltage Measure Range: 8-30VDC

1.4 Working Environment Requirement

Working Environment Temp.: -20°C-60°C
It is applicable for automotive manufacturers, automotive maintenance and
repair workshops, automotive battery factories, automotive battery distributors,
and educational organizations, etc.

Chapter 2 Tester Structure

BT300 : battery tester main unit with testing cables.
BT300 Battery Tester main unit cover is made of ABS acid-resistant plastic.

Battery Tester BT300

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Chapter 3 Operation

3.1 Pre-Test

3.1.1 Connect Tester

Shake the clamps back and forth to make sure they are well
connected. Tester requires the two clamps are well connected with
the battery poles, otherwise, the test cannot go on. When enter the
battery test program, screen prompts "Check Connection", do clean
the poles and re-connect in the right way.

Tester has reverse connection protection function. When clamps are
reversely connected, tester screen will not light, but it damages
neither the tester nor the automotive load.

NOTE: For parallel connected batteries, break off the cathode
connection first, then do single test to each battery. Suppose
cathode connection is not cut off, there will be error in test result.

3.1.2 Key Description

● Up / Down keys
Select upwards or downwards via white UP and DOWN keys.

● Return key

Return to previous menu via blue RETURN key.

● Test key

Confirm the selection via green Test key