Deutronicstraße 5
D-84166 Adlkofen / Germany
Tel.: +49 (0)8707 / 920-199
Fax: +49 (0)8707 / 1004
E-Mail: sales@deutronic.com
http://www.deutronic.com
DBL500-14/LTC
Deutronic Intelligent Charging Computer
for Lead Acid / AGM / VRLA Batteries
- Manual -
Important note:
DBL 500-14/LTC Manual
Do not use the charger in applications for which the device was
not originally designed! Read operation instructions carefully and
in any case pay attention to the guidelines of the battery
manufacturer!
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Content
1)
2)
4)
5)
6)
7)
8)
GENERAL SAFETY INSTRUCTIONS ................................................................... 3
IMPORTANT SAFETY INSTRUCTIONS ............................................................... 4
ASSEMBLY INSTRUCTIONS ................................................................................ 9
OPERATING INSTRUCTIONS ............................................................................ 10
CARE AND MAINTENANCE ................................................................................ 12
MOVING AND STORAGE .................................................................................... 12
SERVICE CENTER / REPAIR.............................................................................. 13
Features:






Extensive protection functions and self-protection functions
Short circuit and reverse polarity protection
Switchable option to power supply mode
Protection of on board electronic system
Protective functions against defect batteries
Reliable sparking suppression
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1) GENERAL SAFETY INSTRUCTIONS

The battery charger contains components which are likely to generate electric
arcs and sparks, thus the device has to be placed during operation in a special
housing or in a room provided a for this purpose.

Warning: When charging batteries explosive gases may occur. As a fact of that
avoid fire, open light and spark formation.

Only charge batteries in well ventilated places.

The charger might only be utilised for the appointed applications, it is designed
for professional applications for motor vehicle manufacturers and garages.

Depending on the type of charger it is only allowed to contact lead (Pb)
batteries with 12 Volt nominal voltages, 6 cells.

The battery which has to be charged must have a nominal capacity of 1Ah at
minimum and 360Ah maximum.

It is not possible and not allowed to charge non rechargeable batteries with this
device.

Not on any account it is permitted to charge batteries in operation mode
'POWER SUPPLY'.

Charging of fresh filled or defective batteries is explicitly forbidden.

Mains cables must always be in a proper state.

The device shall not be opened because as well the test certification as the
warranty expires.

The charger shall not be used by children or persons with reduced physical,
sensory or mental capabilities, or lack of experience and knowledge, unless
they have been given supervision or instruction.

Children being supervised shall not play with the charger.
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2) IMPORTANT SAFETY INSTRUCTIONS
1.
SAVE THESE INSTRUCTIONS
This manual contains important safety and operating instructions for battery
charger Models DBL500-14 and DBL500-14/LTC.
2. Do not expose charger to rain or snow
3. Use of an attachment not recommended or sold by the battery charger
manufacturer may result in a risk of fire, electric shock, or injury to persons.
4. To reduce risk of damage to electric plug and cord, pull by plug rather than cord
when disconnecting charger.
5. An extension cord should not be used unless absolutely necessary. Use of
improper extension cord result a risk of fire and electric shock. If extension cord
must be used, make sure:
a) That pins on plug of extension cord are the same number, size, and shape
as those of plug on charger;
b) That extension cord is properly wired and in good electrical condition; and
c) That wire size is large enough for ac ampere rating of charger (see following
table)
Table - Recommended minimum AWG size and wire cross section for extension
cords
Cord length [feet]
25
50
100
150
AWG size of cord
18
16
12
10
Cord length [meter]
7
15
30
45
Wire cross section [mm²]
1,0
1,5
4
6
6. Do not operate charger with damaged cord or plug – replace the cord or plug
immediately.
7. Do not operate charger if it has received a sharp blow, been dropped, or
otherwise damaged in any way; take it to a qualified serviceman.
8. Do not disassemble charger; take it to a qualified serviceman when service or
repair is required. Incorrect reassembly may result in a risk of electric shock or
fire.
9. To reduce risk of electric shock, unplug charger from outlet before attempting
any maintenance or clearing. Turning off controls will not reduce this risk.
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10. WARNING – RISK OF EXPLOSIVE GASES
a) WORKING IN THE VICINITY OF A LEAD-ACID BATTERY IS
DANGEROUS: BATTERIES GENERATE EXPLOSIVE GASES DURING
NORMAL BATTERY OP ERATION: FOR THIS REASON, IT IS OF
UTMOST IMPORTANCE THAT EACH TIME BEFORE USING YOUR
CHARGER, YOU READ THIS MANUAL AND FOLLOW THE
INSTRUCTIONS EXACTLY
b) To reduce risk of battery explosion, follow these instructions and those
published by battery manufacturer and manufacturer of any equipment you
intend to use in vicinity of battery. Review cautionary marking on these
products and on engine.
11. PERSONAL PRECAUTIONS
a) Consider having someone close enough by to come to your aid when you
work near a lead-acid battery.
b) Have plenty of fresh water and soap nearby in case battery acid contacts
skin, clothing, or eyes.
c) Wear complete eye protection and clothing protection. Avoid touching eyes
while working near battery.
d) If battery acid contacts skin or clothing, wash immediately with soap and
water. If acid enters eye, immediately flood eye with running cold water for
at least 10 minutes and get medical attention immediately.
e) NEVER smoke or allow a spark or flame in vicinity of battery or charger.
f) Be extra cautious to reduce risk of dropping a metal tool onto battery. It
might spark or short-circuit battery or other electrical part that may cause
explosion.
g) Remove personal metal items such as rings, bracelets, necklaces, and
watches when working with lead-acid battery. A lead-acid battery can
produce a short-circuit current high enough to weld a ring or the like of
metal, causing a severe burn.
h) Use charger for charging a LEAD-ACID battery only. It is not intended to
supply power to a low voltage electrical system other than in starter-motor
application. Do not use battery charger for charging dry-cell batteries that
are commonly used with home appliances. These batteries may burst and
cause injury to persons and damage to property.
i) NEVER charge a frozen battery.
12. PREPARING TO CHARGE
a) If it is necessary to remove battery from vehicle to charge it, always remove
grounded terminal from battery first. Make sure all accessories in the vehicle
are off in order to prevent an arc.
b) Be sure area around battery is well ventilated while battery is being charged.
c) Clean battery terminals. Be careful to keep corrosion from coming in contact
with eyes.
d) Add distilled water in each cell until battery acid reaches level specified by
battery manufacturer. This helps purge excessive gas from cell. Do not
overfill. For a battery without cell-caps, carefully follow manufacturers
recharging instructions.
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e) Study all battery manufacturer‘s specific precautions such as removing or
not removing cell caps while charging and recommended rates of charge.
f) Determine voltage of battery by referring to car owner’s manual and make
sure that output voltage switch is set at the correct voltage. If charger has
adjustable charge rate, charge battery initially at the lowest rate.
13. CHARGER LOCATION
a) Locate charger as far away from battery as dc cables permit.
b) Never place the charger directly above or below the battery being charged;
gases or fluids from the battery will corrode and damage charger.
c) Never allow battery acid to dip on charger when reading gravity or filling
battery.
d) Do not operate charger in a closed-in area or restrict ventilation in any way.
e) Do not set a battery on top of charger.
14. DC CONNECTION PRECAUTIONS
a) Connect and disconnect dc output clips only after setting any charger
switches to the “off” position and removing ac cord from the electric outlet.
Never allow clips to touch each other.
b) Attach clips to battery and chassis as indicated in 15(e), 15(f), 16(b), and
16(d)
15. FOLLOW THESE STEPS WHEN BATTERY IS INSTALLED IN VEHICLE. A
SPARK NEAR BATTERY MAY CAUSE A BATTERY EXPLOSION. TO REDUCE
RISK OF A SPARK NEAR BATTERY:
a) Position ac and dc cords to reduce risk of damage by hood, door, or moving
engine part.
b) Stay clear of fan blades, belts, pulleys, and other parts that can cause injury
to persons.
c) Check polarity of battery posts. A POSITIVE (POS, P, +) battery post usually
has a larger diameter than a NEGATIVE (NEG, N, -) post;
d) Determine which post of battery is grounded (connected) to the chassis. If
negative post is grounded to chassis (as in most vehicles), see (e). If
positive post is grounded to the chassis, see (f);
e) For a negative-grounded vehicle, connect the POSITIVE (RED) clip from
battery charger to POSITIVE (POS, P, +) ungrounded post of battery.
Connect the NEGATIVE (BLACK) clip to vehicle chassis or engine block
away from battery. Do not connect clip to carburetor, fuel lines, or sheetmetal body parts. Connect to a heavy gauge metal part of the frame or
engine block;
f) For a positive-grounded vehicle, connect the NEGATIVE (BLACK) clip from
battery charger to NEGATIVE (NEG, N, -) ungrounded post of battery.
Connect the POSITIVE (RED) clip to vehicle chassis or engine block away
from battery. Do not connect clip to carburetor, fuel lines, or sheet-metal
body parts. Connect to a heavy gauge metal part of the frame or engine
block;
g) When disconnecting charger, turn switches off, disconnect AC cord, remove
clip from vehicle chassis, and then remove clip from battery terminal.
h) See operating instructions for length of charge information.
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16. FOLLOW THESE STEPS WHEN BATTERY IS OUTSIDE VEHICLE. A
SPARK NEAR THE BATTERY MAY CAUSE A BATTERY EXPLOSION. TO
REDUCE RISK OF A SPARK NEAR BATTERY:
a) Check polarity of battery posts. POSITIVE (POS, P, +) battery post usually
has a larger diameter than NEGATIVE (NEG, N, -) post;
b) Attach at least a 60cm 6-gauge (AWG) insulated battery cable to a
NEGATIVE (NEG, N, -) battery post.
c) Connect the POSITIVE (RED) charger clip to the POSITIVE (POS, P, +)
post of battery.
d) Position yourself and the free end of cable as far away from battery as
possible - then connect the NEGATIVE (BLACK) charger clip to free end of
cable.
e) Do not face battery when making final connection.
f) When disconnecting charger, always do so in reverse sequence of
connecting procedure and break first connection while standing as far away
from battery as practical.
g) A marine (boat) battery must be removed and charged on shore. To charge
it on board requires equipment specially designed for marine use.
DBL 500-14/LTC Manual
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Figure 1 - Grounding Methods
Source: UL1236 Battery Chargers
GROUNDING AND AC POWER CORD CONNECTION INSTRUCTIONS
Charger should be grounded to reduce risk of electric shock. Charger is equipped
with an electric cord having an equipment-grounding conductor and a grounding
plug. The plug must be plugged into an outlet that is properly installed and
grounded in accordance with all local codes and ordinances.
DANGER – Never alter AC cord or plug provided – if it will not fit outlet, have
proper outlet installed by a qualified electrician. Improper connection can result in a
risk of an electric shock.
Versions having 120-volts nominal input voltage:
This battery charger is for use on a nominal 120-volt circuit, and has a grounding
plug that looks like the plug illustrated in sketch A in Figure 1 – Grounding
Methods. A temporary adapter, which looks like the adapter illustrated in sketch B
and C, may be used to connect this plug to a two-pole receptacle as shown in
sketch B if a properly grounded outlet is not available. The temporary adapter
should be used only until a properly grounded outlet can be installed by a qualified
electrician.
DANGER – Before using adapter as illustrated, be certain that center screw of
outlet plate is grounded. The green-colored rigid ear or lug extending from adapter
must be connected to a properly grounded outlet – make sure it is grounded. If
necessary, replace original outlet cover plate screw with a longer screw that will
secure adapter ear or lug outlet cover plate and make ground connection to
grounded outlet.
Versions having 230-volts nominal input voltage:
This battery charger is for use on a circuit having a nominal rating more than 120volts and is factory-equipped with a specific electric cord and plug to permit
connection to an acceptable electric circuit. Make sure that the charger is
connected to an outlet having the same configuration as the plug. No adapter
should be used with this charger.
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3) ASSEMBLY INSTRUCTIONS
Only use the device with an appropriate mains cable or adapter according to the
country where the charger is used.
When using an extension cord choose the appropriate AWG size related to the
following table.
Table - Recommended minimum AWG size and wire cross section for
extension cords
Cord length [feet]
25
50
100
150
AWG size of cord
18
16
12
10
Cord length [meter]
7
15
30
45
Wire cross section [mm²]
1,0
1,5
4
6
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4) OPERATING INSTRUCTIONS
ATTENTION! The battery charger shall be properly assembled in accordance to the
assembly instructions before it is used.
The DBL500-14/LTC is designed for long-term-monitoring / charging of so-called
showroom vehicles; it takes over the supply of the vehicle loads in back-up mode up to
the power limit of the device and compensates possible charge deficits of the battery,
until it is fully charged.
Control Elements
Afterwards the control elements of the DBL500-14/LTC are given (incl. LEDs and
push-button):
[1] ERROR (red LED)
1
2
[2] BAT full (green LED)
[3] BAT half full (yellow LED)
3
[4] BAT empty (yellow LED)
4
5
6
[5] MODE button to reduce the starting
voltage[1]
Note: Activating the MODE button
reduces the starting voltage limit
to 5VDC.
[6] START/STOP button (Standby)
Initial Operation
After the DBL is attached to the mains supply, the internal functions of the device are
checked immediately. This check is indicated by a running light over all 4 LEDs. After
the internal check routine is finished, the DBL500-14/LTC displays this with the
corresponding signalization.
Charging / Monitoring Operation
If the clamps on the output of the DBL are connected to a technical irreproachable
lead acid-/AGM-/ VRLA battery then this is recognized from the internal load detection
circuit of the DBL and the Charging/Monitoring operation is started, if the battery
voltage is within the predefined threshold.
Operation State / Functions
LED 2 (green), lights up
Battery is “full“
LED 3 (yellow), lights up
Battery is “half full“
LED 4 (yellow), lights up
Battery is “empty“
LED 4 (yellow), flashing
Ready to charge / monitor, as soon as a battery is connected
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(internal security check of the DBL has not detected a
functional battery)
LED 1 (red), lights up
Internal device error
LED 1 (red), fast flashing
(app. 5x per second)
Battery connected with reverse polarity
LED 1 (red), slow flashing
(app. 1x per second)
Battery is deep discharged (at contact) - see
LED 1 (red), slow flashing
+ LED 4 (yellow) lights up
Battery is deep discharged (during operation) - see
LED 1 (red), flashing
(Code: 1x long + 3x short)
Relay voltage (Voltage adjustment internal / external aborted)
[1]
[1]
Standby - Operation
By pressing the DBL's START/STOP push-button the operation mode is changing from
'Charging / Monitoring Operation' to 'Standby', which is signalled with a synchronous blinking
of the three operation LEDs (1x green / 2x yellow). By pressing the START/STOP push-button
again, the charger is reset to the 'Charging / Monitoring Operation'.
Operation State / Functions
LED 2/3/4 (green / 2xyellow), The DBL charging computer has been stopped and is now in
synchronous flashing
operation state 'Standby Charging / Monitoring Operation'
[1]
ATTENTION! - Important safety notice concerning the MODE button functionality:
Pressing the MODE button reduces the starting voltage limit to 5VDC. By doing this
widely deep discharged batteries can be supplied.
IMPORTANT - this is only allowed under the supervision of trained personnel because
the battery which is used is already severely damaged or irrecoverable defective!
The reduction of the starting voltage limit is only possible, when the DBL is in one of
the following conditions:
-“Standby“
LED 2/3/4 (green/ 2xyellow), synchronous flashing
-“Ready to charge“
LED 4 (yellow), flashing
-“Deep discharge (at contact)“
LED 1 (red), slow flashing (app. 1x per second)
If the starting voltage limit was reduced successfully via MODE button functionality, it is
confirmed by the device in the respective state via a considerable longer pause interval
of the LED signalization.
With a reduced starting voltage limit the battery is supplied by the DBL500-14/LTC until
the next battery test is performed. Because of safety reasons, the current limit is
reduced in this operation mode to 5A.
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The following hint should be noted when using the device:
It is not recommended to have a permanent active load at the battery (several
hours / days), which have a current consumption about 1…2A or higher (such
as the vehicle light, etc.). In this case the DBL500-14/LTC cannot check the
battery completely. Thereby the battery can be excessively aged and also
damaged!
5) MAINTENANCE INSTRUCTIONS
With only minimal maintenance, the DBL 500 will deliver years of dependable service. Follow
these simple steps to maintain the charger in optimum condition:

After each use, clean the battery charger clamps - be sure to remove any battery fluid
that will cause corrosion of the copper clamps.

Clean the outside case of the charger with a soft cloth.
CAUTION: The warnings label shall not be damaged while cleaning the case!

Keep the charger cords loosely coiled during storage to prevent damage to the cords.
6) MOVING AND STORAGE

Store the charger unplugged. The cord will still conduct electricity until it is unplugged
from the outlet.

Store inside, in a cool and dry place.

Do not store the clips on the handle, clipped together, on or around metal, or clipped to
cables.

If the charger is moved around or transported to another location, take care to
avoid/prevent damage to the cords, clips and charger.

Do not use the charger if cords or clamps have been damaged.
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7) SERVICE CENTER / REPAIR
Instructions:
To ensure a fast and smooth processing it is absolutely important that every device sent to
Deutronic for repair has a fully filled out return service scripture in which for every device all
relevant data (e.g. address, name contact person, phone number etc.) as well as a detailed
fault description is included.
The needed return service scripture as well as the worldwide service partner addresses you
will find on our web page www.deutronic.com in the menu item 'service worldwide'.
In order to assert warranty claims within the warranty period it is absolutely necessary that the
objected device which is sent in for reparation is packed safe for transport in the original
wrapping or in an equivalent safe packing.
Important note: Deutronic takes no warranty reparation at devices with mechanical damages /
transport damages.
No liability:
The customer is responsible for the use of the device according to the specifications.
Regardless of the type, Deutronic is not liable for any damage incurred through the use of the
device.
Contact:
Deutronic Elektronik GmbH
Deutronicstraße 5
D-84166 Adlkofen / Germany
Tel.: +49 (0)8707 / 920-0
Fax: +49 (0)8707 / 1004
E-Mail: sales@deutronic.com
http://www.deutronic.com
DC Nr. 33459
All data at nominal input, full load and 25°C ambient temperature, if not marked otherwise.
Technical modifications and mistakes reserved.
Products are described by information contained in catalogue and data-sheets. It is not be considered as
assured qualities. Stresses listed under „Maximum Rating“ (one at a time) may be applied to devices without
resulting in permanent damage. The operation of the equipment for extended periods under maximum rating
may affect device reliability. Limiting value tolerance are subject to usual fluctuation margins.
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