Smartgen BAC06AU User manual

BAC06AU
BATTERY CHARGER
USER MANUAL
SMARTGEN (ZHENGZHOU) TECHNOLOGY CO., LTD.

BAC06AU BATTERY CHARGER USER MANUAL
BAC06AU Battery Charger Version 1.02019-12-12 Page 2 of 8
CONTENT
1OVERVIEW............................................................................................................................4
2PERFORMANCE AND CHARACTERISTICS.......................................................................4
3CHARGING PRINCIPLE .......................................................................................................5
4PARAMETERS CONFIGURATION.......................................................................................6
5OPERATION..........................................................................................................................7
6CASE DIMENSIONS .............................................................................................................8

BAC06AU BATTERY CHARGER USER MANUAL
BAC06AU Battery Charger Version 1.02019-12-12 Page 3 of 8
Chinese trademark
English trademark
SmartGen —make your generator smart
SmartGen Technology Co., Ltd.
No.28 Jinsuo Road
Zhengzhou
Henan Province
P. R. China
Tel: [phone]
0086-(0)371-67991553/67992951
0086-(0)371-67981000(overseas)
Fax: [phone]
Web: www.smartgen.com.cn
www.smartgen.cn
Email: [e-mail]
All rights reserved. No part of this publication may be reproduced in any material form (including
photocopying or storing in any medium by electronic means or other) without the written permission of
the copyright holder.
Applications for the copyright holder’s written permission to reproduce any part of this publication should
be addressed to Smartgen Technology at the address above.
Any reference to trademarked product names used within this publication is owned by their respective
companies.
SmartGen Technology reserves the right to change the contents of this document without prior notice.
Table 1 Software Version
Date
Version
Note
2019-12-12
1.0
Original release.

BAC06AU BATTERY CHARGER USER MANUAL
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1 OVERVIEW
BAC06AU battery charger applies up-to-date switch-type power component, and is specially designed
for lead-acid engine starter batteries based on the charging characteristics. It is suitable for long-term
complement charging (float) of lead-acid batteries. Output current is 4A for battery 12V, and output
current is 3A for battery 24V.
2 PERFORMANCE AND CHARACTERISTICS
Charger has the following characteristics:
—Applying switch-type power structure; wide input AC voltage range, small volume, light weight, and
high efficiency;
—Applying two-stage charging method (first constant current, second constant voltage) to charge
automatically, charging is done fully based on battery charging characteristics, which can prevent
lead-acid battery over charging, and can prolong battery life in the most degree;
—Short circuit and reverse connection protection functions;
—Charging voltage, and current values can be adjusted by potentiometer on site;
—Status LED display: power indicator, charging indicator;
—UL recognition has been done with Certificate No. E362048;
—BAC06AU applies horizontally-mounted installation method, simple and easy.

BAC06AU BATTERY CHARGER USER MANUAL
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3 CHARGING PRINCIPLE
Fig. 1 Charging Principle Diagram
Charging is performed according to the battery charging characteristics and uses two-stage charging
method. Charging type is ‘constant current type’, which means when the battery terminal voltage falls
below the pre-set value, charging current will be constant; when the battery terminal voltage exceeds the
pre-set value, charging current will fall gradually with the rise of terminal voltage until the pre-set current
value is reached and charging transfers to floating mode. At this time charging current becomes small
gradually, and battery terminal voltage also rises gradually to the pre-set steady voltage value. When
charging current is less than 0.3A, battery is basically fully charged (charging indicator is off). Afterwards
charging current only offsets the self-discharging of battery. And long time charging does no harm to
battery. That is, charger can not only maintain battery full charging status, but also ensure the usage life
of battery.

BAC06AU BATTERY CHARGER USER MANUAL
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4 PARAMETERS CONFIGURATION
Table 2 Product Parameters
Items
Contents
12V
24V
Input
Characteristics
Nominal AC Voltage
AC (100~240)V
Max. AC Voltage
AC (90~280)V
AC Frequency
50Hz/60Hz
Max. Input Current
2A
Max. Efficiency
82%
Output
Characteristics
Rated Charging Current
4A
3A
Charging Current Error
±2%
Max. Output Power
52W
81W
Min. Output Voltage
7.5V
No-load Output Voltage
13.8V, Error±1%
27.6V, Error±1%
No-load power consumption
<3W
Insulating
Property
Insulation Resistance
If input and output, input and shell both are:
DC500V 1min, insulation resistance RL≥50MΩ
Insulation Voltage
If input and output, input and shell both are:
AC1500V 50Hz 1min, leak current IL≤3.5mA.
Working
Condition
Working Temperature
(-25~+60)°C
Storage Temperature
(-40~+85)°C
Working Humidity
20%RH~93%RH(No condensation)
Shape Structure
Weight
0.65kg
Dimension
143mm×96mm×55mm
(length*width*height)

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5 OPERATION
5.1 BAC06AU MASK ILLUSTRATION
Fig. 2 BAC06AU Panel Mask
—Connect terminals L and N to AC (100~240)V with BVR 1mm2multi-strand copper line;
—Connect terminal B+ and B- to battery + and - poles with BVR 1.5mm2multi-strand copper line;
—POWER: power supply indicator, illuminated when the charger is working normally;
—CHARGING: charging indicator, illuminated when charging current is over 0.3A;
—Output FUSE 5A: if output is connected reversely, the fuse will be burnt out and there is no output
voltage at this time; Correct the output wiring and change the fuse, then it can work normally.
NOTE 1: Because inner output of the charger is connected to diode and current foldback circuit, this charger can be
connected in parallel to the charging generator on the engine and it is not necessary to disconnect the charger during
cranking.
NOTE 2: When it is used on genset, as charging current is very big, voltage drop will be caused on the charging wire.
Therefore it is suggested to connect charging wire separately to the battery terminal, in case of affecting sensor sampling
accuracy.
5.2 BAC06AU COMMON FAULT HANDLE
5.2.1 FAULT DIAGNOSIS
If abnormal occasions, such as short circuit, battery reverse connection etc. occur, output fuse may be
burned out; Under this occasion after AC input power is connected, charger green LED indicator will be
illuminated, but output terminal has no output voltage. Take off output fuse, and watch whether fuse
has been burned out in the fuse tube by our eyes; If condition allowed, fuse tube can be tested by
multimeter.
a) If output 5A fuse is burned out, it only needs to change same capacity fuse.
b) If output fuse isn't burned out, or after changing the fuse, charger still has no output, it needs to
take back to factory to fix.
c) Emergency handle method for fuse burn-out: use conductive metal wire and short connect the
burned out fuse; afterwards change a proper fuse.

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5.2.2 FUSE CHANGE OPERATION STEPS
a) Use straight screwdriver to press towards inside and backward wring once anticlockwise, take the
fuse out;
b) Change a new fuse after taking out, insert it into the fuse chassis; then use straight screwdriver to
press inside by force, and at the same time clockwise giving it a wing is Ok.
NOTE: Improper operation or too much force may damage the fuse chassis.
6 CASE DIMENSIONS
Fig. 3 BAC06AU Installation Size (Unit:mm)
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