Samlex Europe ELOGIC User manual

INTELLIGENT DC-DC BATTERYCHARGER
ELOGIC
Owners Manual
Please read this manual before operating your Elogic Batterycharger
Model No.
EL 12-12/50 (12V/50A)
EL 12-24/30 (24V/30A)

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Noce of Copyright
EL 30-50 Elogic DC-DC baery charger owner’s manual © 2020 SAMLEX EUROPE BV.
All rights reserved. No part of this document may be reproduced in any form or disclosed
third pares without the express wrien permission of SAMLEX EUROPE BV, Aris van
Broekweg 15, 1507 BA, Zaandam, The Netherlands. SAMLEX EUROPE BV reserves the
right to revise this document and to periodically make changes to the content hereof
without obligaon or organizaon of such revisions or changes, unless required to do
so by prior arrangement.
Exclusions for documentaon and product usage
UNLESS SPECIFICALLY AGREED TO IN WRITING, SAMLEX EUROPE BV (“SAMLEX”):
1. MAKES NO WARRANTY AS TO THE ACCURACY, SUFFICIENCY OR SUITABILITY
OF ANY TECHNICAL OR OTHER INFORMATION PROVIDED IN ITS MANUALS OR
OTHER DOCUMENTATION.
2. ASSUMES NO RESPONSIBILITY OR LIABILITY FOR LOSSES, DAMAGES, COSTS OR EXPENSES,
WHETHER SPECIAL, DIRECT, INDIRECT, CONSEQUENTIAL OR INCIDENTAL, WHICH MIGHT
ARISE OUT OF THE USE OF SUCH INFORMATION. THE USE OF ANY SUCH INFORMATION
WILL BE ENTIRELY AT THE USER’S RISK.
3. REMINDS YOU THAT IF THIS MANUAL IS IN ANY LANGUAGE OTHER THAN ENGLISH OR
DUTCH, ALTHOUGH STEPS HAVE BEEN TAKEN TO MAINTAIN THE ACCURACY OF THE
TRANSLATION, THE ACCURACY CANNOT BE GUARANTEED.
4. MAKES NO WARRANTY, EITHER EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED TO
ANY IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR
PURPOSE, REGARDING THESE SAMLEX PRODUCTS AND MAKES SUCH SAMLEX PRODUCTS
AVAILABLE SOLELY ON AN “AS IS” BASIS.
5. SHALL IN NO EVENT BE LIABLE TO ANYONE FOR SPECIAL, COLLATERAL, INCIDENTAL, OR
CONSEQUENTIAL DAMAGES IN CONNECTION WITH OR ARISING OUT OF PURCHASE OR
USE OF THESE SAMLEX PRODUCTS. THE SOLE AND EXCLUSIVE LIABILITY TO SAMLEX,
REGARDLESS OF THE FORM OF ACTION, SHALL NOT EXCEED THE PURCHASE PRICE OF THE
SAMLEX PRODUCTS DESCRIBED HERE IN.
Document name, date and part number
“EL 30-50 Manual Rev2endfs”, July 2020, webversion

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TABLE OF CONTENTS
1. INTRODUCTION ........................................................................................................................ 5
1.1 Intended product use ..................................................................................................... 5
1.2 Important safety informaon ......................................................................................... 5
2. INSTALLATION ........................................................................................................................... 7
2.1 Unpacking ....................................................................................................................... 7
2.2 Mounng ........................................................................................................................ 7
2.3 Wiring details .................................................................................................................. 8
3. GENERAL FUNCTIONALITY ...................................................................................................... 14
3.1 The charging process .................................................................................................... 14
3.2 Charger operaon using the main On/O control input .............................................. 14
3.3 Charger operaon without using the main On/O control input ................................. 15
3.4 LED indicators ............................................................................................................... 16
4. TROUBLESHOOTING GUIDELINE ............................................................................................. 17
5. TECHNICAL SPECIFICATIONS ................................................................................................... 18
6. WARRANTY CONDITIONS ....................................................................................................... 20
7. DECLARATION OF CONFORMITY ............................................................................................. 21

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1. INTRODUCTION
Thank you for purchasing a Samlex Europe (Samlex) Elogic DC to DC baery charger.
Please read this owner’s manual for informaon about using the product correctly and safely.
Keep this owner’s manual and all other included documentaon close to the product for
future reference. For the most recent manual revision, please check the downloads secon
on our website.
The purpose of this owner’s manual is to provide explanaons and procedures for installing,
conguring and operang the baery charger. The installaon instrucons are intended
for installers that should have knowledge and experience in installing electrical equipment,
knowledge of the applicable installaon codes, and awareness of the hazards involved in
performing electrical work and how to reduce those hazards.
1.1 Intended product use
The Elogic DC to DC baery chargers are primarily intended to charge an auxiliary or service
baery from a vehicle starter baery. The input baery voltage can be above, below or
equal to the output baery voltage. An Elogic DC charger allows the auxiliary baery to be
perfectly charged regardless of the input voltage, while being protected against damage due
to peak voltages.
The Elogic DC baery chargers are compable with vehicles that are equipped with variable
output smart alternators (EUR 6+). The Elogic DC charger can start charging based on a
programmable input voltage range only, or in combinaon with an engine run signal. There is
also a separate (BMS-) control input available that enables external control for charger-on
and -standby.
1.2 Important safety informaon
This secon contains important safety informaon for the Elogic DC baery charger. Each me,
before using the Elogic DC baery charger, READ ALL instrucons and cauonary markings on
or provided with the baery charger, and all appropriate secons of this guide.
This baery charger contains no user serviceable parts. Opening up the baery charger will
void product warranty.
WARNING
FIRE AND/OR CHEMICAL BURN HAZARD
Do not cover or obstruct any air vent openings and/or install in a zero clearance compartment.
WARNING
SHOCK HAZARD. KEEP AWAY FROM CHILDREN!
Avoid moisture ingress. Never expose the unit to snow, water, etc.

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WARNING
FAILURE TO FOLLOW THESE INSTRUCTIONS CAN RESULT IN DEATH OR SERIOUS INJURY:
1. When working with electrical equipment or lead acid baeries, have someone nearby in
case of an emergency.
2. Study and follow all the baery manufacturer’s specifc precauons when installing,
using and servicing the baery connected to the charger.
3. Wear eye protecon and gloves.
4. Avoid touching your eyes while using this unit.
5. Keep fresh water and soap on hand in the event baery acid comes in contact with eyes.
If this occurs, clean right away with soap and water for a minimum of 15 minutes and
seek medical aenon.
6. Baeries produce explosive gases. DO NOT smoke or have an open spark or re near
the system.
7. Never aempt to re-charge a damaged, frozen or non-rechargeable baery.
8. Keep unit away from moist or damp areas.
9. Avoid dropping any metal tool or object on the baery. Doing so could create a spark or
short circuit which goes through the baery or another electrical tool that may create
an explosion.
10. There are no user serviceable parts inside in the charger’s enclosure.
WARNING
EXPLOSION HAZARD!
Do not use the baery charger in the vicinity of ammable fumes or gases.
CAUTION
LIMITATIONS OF USE
Do not use in connecon with life support systems or other medical equipment or devices.
This baery charger is not to be used by persons with reduced physical or mental capabilies
or lack of knowledge and experience. Not to be operated or used by children.

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2. INSTALLATION
2.1 Unpacking
The charger package should contain the following items :
― Baery charger
― 3x rubber cable grommets
― Baery temperature sensor (3m)
― Owner’s manual
― 3x M6 crimp terminals
CAUTION
Aer unpacking, check if the product shows any mechanical damage. Never use the product
when the enclosure shows any visual damage caused by harsh handling, or when it has been
dropped accidentally. Contact your local supplier for further informaon.
2.2 Mounng
Please see the image below for the product dimensions and mounng screw distances.
Further locaon and mounng details:
1. Choose an appropriate mounng locaon in a well venlated room that is protected against
rain, snow, spray, vapour, moisture and dust.
2. Make sure that the ambient temperature is between -20°C and +60°C. Above +40°C the
charge will automacally derate the output power.
3. Do not expose the charger to any heat source (such as direct sunlight or heang).
Avoid addional heang of the product. Also avoid charger exposure to excessive vibraon.
4. Never install the charger in an enviroment where there is danger of gas or dust explosions,
like in the same compartment as the baeries or directly above vented baeries.
5. When installing the charger horizontally (oor-mounng), any mounng direcon
is acceptable. When installing vercally, please observe the following preferred
enclosure orientaons:

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6. Use the base of the charger as a mounng template to mark the posions of the
xing screws.
CAUTION
Keep a clear space of at least 10 cm around this product for cooling purposes!
2.3 Wiring details
WARNING
For user safety during installaon, please make sure that the output of the supplying source
is switched o (temporary remove fuses from the fuseholders) and that no consumers are
connected to the baeries.
CAUTION
Please double check if the baery voltages match the specicaons of the used harger model.
CAUTION
Always connect ground (- GND) rst followed by the service (+ OUT) baery and lastly the
starter (+ IN) baery.

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Before connecng the main DC cables, make sure to slide the included rubber grommets over
these cables like shown in the next image.
When the DC cables are connected to the charger, the rubber grommets can be slid towards
the charger’s front panel unl the screw connecons are completely covered.
Please see the image below for further wiring details.

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CAUTION
Double check for correct polarity, before connecng the baery cables to the baery!
Wrong polarity will blow an internal fuse and the charger must be returned for service.
Always keep posive and negave cables close to each other to minimize electromagnec elds.
➀ Please consult the following table to determine the correct input baery cable- and fuse
size for each model. Using a smaller cable size will cause addional losses and may result in
improperly charged baeries. Fire and burning hazards are present if the baery cables are
insuciently sized for the expected current. Always keep the cable length as short
as possible!
Model Minimum Cable size Recommended
Cable size
Baery fuse
(quick type)
EL 12-12/50 16mm² (AWG6) 25mm² (AWG4) 70-90Amp
EL 12-24/30 16mm² (AWG6) 25mm² (AWG4) 70-90Amp
➁ Please consult the following table to determine the correct output baery cable- and fuse
size for each model. Using a smaller cable size will cause addional losses and may result
in improperly charged baeries. Fire and burning hazards are present if the baery cables
are insuciently sized for the expected current. Always keep the cable length as short
as possible!
Model Minimum Cable size Recommended
Cable size
Baery fuse
(quick type)
EL 12-12/50 16mm² (AWG6) 25mm² (AWG4) 60-80Amp
EL 12-24/30 10mm² (AWG8) 16mm² (AWG6) 40-50Amp

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➂ Please see the image below for the control wire connecon locaons.
Connecon 1 is the main On/O control input and can only be used when DIP switch 4 is set
to o. This input can be used to enable or disable the charger and is ‘acve high’. When a
voltage higher than 2V is applied to this input, the charger turns on. When a voltage lower
than 1V is applied, the charger turns o and draws zero current. The maximum input voltage
is 32V. In a vehicle applicaon is it recommended to connect this input to the engine run
signal. Contact your vehicle distributor to nd out the most suitable connecon.
BMS input connecon 2 can be used to force the charger in standby mode. In this mode the
charger stops charging, but the internal circuits stay acve to immediately resume charging
once allowed again. This input can be used to connect to a Lithium baery BMS in order to
stop the charging process if required. By default this input is ‘acve low’ (< 1V is On and
> 3V is Stand by), but this can be changed to ‘acve high’ as well by the Samlex Dashboard
or Dashboard Mobile app. The maximum input voltage is 32V.
Connecon 3 is an open collector output that can be used to for example connect to a remote
indicator light. The maximum switching voltage and current are respecvely 32V and 150mA.
By default this output is acve (low) when the charger is charging or when charging is nished.
Other acve condions can be selected in the Samlex Dashboard or Dashboard Mobile apps.
Connecon 4 is reserved for future use and has no acve funconality yet.

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➃ DIP switch sengs
DIP switch 1 and 2 are used select the desired charge program for
the connected output baery. Please see the table below:
¹⁾ Charge voltage value
between brackets are
for EL 12-24/30 model.
²⁾ All standard charge
voltage values are
congurable using
the Samlex Dashboard
and Dashboard Mobile
apps.
DIP1 DIP2 Baery type / Charge program ¹⁾ ²⁾
O O Flooded (default seng)
Bulk/Abs voltage = 14.4V (28.8V)
Float voltage = 13.5V (27.0V)
O On GEL
Bulk/Abs voltage = 14.2V (28.4V)
Float voltage = 13.5V (27.0V)
On O AGM
Bulk/Abs voltage = 14.7V (29.4V)
Float voltage = 13.6V (27.2V)
On On LiFePo4
Bulk/Abs voltage = 14.4V (28.8V)
Float voltage = 13.8V (27.6V)
DIP switch 3 is reserved for future use (default o).
DIP switch 4 can be used to bypass the On/O control input (see point 3 above). When this
DIP switch is set to On (default seng), the On/O control input is bypassed and the charger
will always operate, independent of the status at the control input. When this DIP switch is set
to O, the charger is controlled by the On/O control input. This seng is recommended for
vehicle applicaons with a proper engine run signal.
CAUTION
Invalid baery type sengs can cause serious damage to your baeries and/or
connected baery loads. Always consult your baery’s documentaon for the correct
charge voltage sengs.

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➄ The remaining connecon opons are shown below
Baery temperature sensor for
temperature compensated charging
The oponal QuickLink communicaon Kits allow the charger to be programmed and
monitored using the Samlex Dashboard soware on PC (via USB or RS232) or the Dashboard
Mobile app on iOS and Android plaorms (via Bluetooth).
Always connect the baery temperature sensor to the baery that is being charged
(output baery). The charger automacally compensates the charge voltages against baery
temperature. This means that the charge voltages are slightly increased at lower temperatures
and decreased at higher temperatures (-30mV/°C at 12V chargers and -60mV/°C at
24V chargers). This way, overcharging is prevented which prolongs your baery's lifeme.
When the LiFePo4 charge program is selected, the charge voltages are not compensated
against temperature. However, the temperature sensor is sll used to prevent charging
the lithium baery when the temperature has dropped below 0°C.

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3. GENERAL FUNCTIONALITY
3.1 The charging process
All selectable charge programs, perform a three stage IUoUo charging process comprising of
a “Bulk” , an “Absorpon”, and a “Float” stage. The image below visualizes the three stage
charging process:
When charger is turned on, it will start in the Bulk stage. In this stage the charger delivers full
output current and typically returns approximately 80% of charge back into the baery once
the absorpon voltage is reached. When this voltage has been reached, the Absorpon stage
will be entered. This stage will return the nal 20% of charge to the baery. The output voltage
is kept at a constant level and the charge current decreases as a funcon of the baery's state
of charge. When the charge current has dropped below a certain value, the Float stage will
be entered. For lithium baeries, more than 80% of charge has been returned to the baery
already. So for this chemistry the Absorpon stage will be relavely short.
In the Float stage the baery voltage will be held constant at a safe level for the baery.
It will maintain the baery in opmal condion for as long as the baery remains connected
to the acvated charger. Connected baery loads will be directly powered by the charger
up to the charger's maximum output current level.
3.2 Charger operaon using the main On/O control input
In order to acvate the charger, a posive (high) signal must be applied to the main On/O
control input while DIP switch 4 must be in the O posion. In a vehicle applicaon, this is
typically the engine run signal. Aer a short delay of a few seconds, the charger will normally

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start the charging process. There is however a second condion that must be met before the
charger starts the charging process and this is the input voltage level. The input baery voltage
must be above a certain level in order to allow the output baery to be charged. Addionally,
this condion must also be met for a preset amount of me. Please see the table below
showing all factory default voltage and me delay values that are stored inside the Elogic
DC charger:
Parameter ¹⁾ Default value
EL 12-12/50
Default value
EL 12-24/30
Turn on input voltage > 12.5V > 12.5V
Delay 10 sec 10 sec
Turn o input voltage (slow) < 12.4V < 12.4V
Delay 3 min 3 min
Turn o input voltage (fast) < 12.0V < 12.0V
Delay 1 sec 1 sec
¹⁾ All parameters are congurable using the Samlex Dashboard and Dashboard Mobile apps.
As can be seen in the above table, there are two low input voltage turn o levels. The ‘slow’ o
level is allowed to be exceeded for a longer me than the ‘fast’ o level. This results in a stable
charge process while sll avoiding a too deeply discharged input baery.
CAUTION
If the main On/O control input is connected to the ignion- instead of an engine running
signal, while the turn o input voltage levels are set to relavely low values, please make sure
to start the engine in a mely manner to avoid discharging the starter baery too much.
3.3 Charger operaon without using the main On/O control input
When there is no engine run signal available or when the charger must always remain
acvated, DIP switch 4 must be set to ON. In this mode however, the input voltage
requirements as shown in the table of chapter 3.2 sll applies. So the charger will only start
charging when these requirements are met.
CAUTION
Please be aware that in this always on mode, the charger will connue to draw a small
current (< 35mA) from the input baery, even when the turn on input voltage condion
has not been met. This could result in a discharged input baery if allowed for an extended
amount of me.

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3.4 LED indicators
The Elogic DC units are equipped with individual LEDs for the input- and the output side.
Please see the image below for the locaon of these LEDs:
The table below explains all available LED condions:
LED Status Explanaon
Input LED O Charger o
Flashing orange Input voltage too low or turn on delay
not expired yet
Connuous green All input condions are OK for charging
Flashing red Error (see LED error table below)
Output LED O Charger o, or charging sll blocked by input
condions not being met
Flashing green Charging in progress
Connuous green Charging nished (Float stage)
Flashing red Error (see LED error table below)
The LED error table below explains what error types are linked to what LED blinking sequences:
Input LED Output LED Error type
Flashing red (1 blink) Input overvoltage
Flashing red (1 blink) Output overvoltage, Output undervoltage,
baery temperature too low or too high
Flashing red (2 blinks) Output overload / short circuit
Flashing red (3 blinks) Charger high temperature

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4. TROUBLESHOOTING GUIDELINE
Please see the table below if you experience any problems with the Elogic DC baery charger
and/or the installaon.
Problem Possible cause Remedy
Elogic DC is not working
at all.
No input voltage. Check wiring and input fuse.
Input voltage is too low. Check input voltage, adjust
the input voltage sengs,
start engine.
No posive signal on main
On/O control wire.
Check wiring, fuses and
status of engine run signal.
Posive signal on BMS input. Check output baery
BMS status.
Very poor input baery
condion.
Replace baery.
The baery is not being
charged up to it’s maximum
capacity.
Incorrect absorpon charge
voltage seng.
Check the baery type
selecon for correct seng.
Or adjust the absorpon
voltage.
Incorrect charge current
seng.
Make sure that the maximum
output current seng is
at maximum level (check
if allowed by baery
manufacturer).
Too much voltage loss
in baery cables and/or
connecons.
Make sure that the baery
cables have a large enough
diameter. Check if all DC
connecons are solidly made.
Addional baery loads are
consuming too much current
during charging.
Turn-o or disconnect all
baery loads.
Charge current is too low. High ambient temperature. Try to lower the ambient
temperature around the
charger.
Charger is operang in the
absorpon charging stage.
Do nothing. The baery is
almost fully charged and
consumes less current by
itself.

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Charge voltage is too low. The charge voltage is being
compensated by the baery
temperature sensor to
protect the baery.
Do nothing or try to
cool down the ambient
temperature around the
baery.
Wrong baery type selected,
or charge voltage needs to be
adjusted.
Select the correct baery
type or adjust the charge
voltage in the setup menu.
DC cables too thin. Install larger DC cables. See
the DC cable size table in
chapter 2.3.
Baery load current is higher
than the charger’s output
current.
Reduce or remove the
baery load.
LEDs blink red. Error detected. Check LED error table in
chapter 3.4.
If none of the above remedies will help solving the problem you encounter, it’s best to contact
your local Samlex distributor for further help and/or possible repair of your Elogic DC unit.
Do not disassemble the charger yourselves as this will void your warranty.
5. TECHNICAL SPECIFICATIONS
Parameter EL 12-12/50 EL 12-24/50
Nominal input voltage 12Vdc
Input voltage range 10.0 – 16.0Vdc
Maximum input current 65Adc
Current consumpon (inacve) < 0.25mA
Current consumpon
(noload/standby)
< 35mA < 45mA
Nominal output voltage 12Vdc 24Vdc
Output voltage range 12.0 – 16.0Vdc 24.0 – 32.0Vdc
Maximum output current ¹⁾ 50A 30A
Charge characterisc IUoUo, intelligent 3-stage, temp. Compensated
Supported baery types ²⁾ Flooded / Gel / AGM / LiFePO4
Operang temperature range -20°C ... +60°C
Storage temperature range -30°C … +70°C

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Parameter EL 12-12/50 EL 12-24/50
Cooling Variable speed fan
Communicaon port Samlex QuickLink
Temperature sensor port Yes (sensor included)
Engine run / acvate input port Yes (> 2.0Vdc = Acve and < 1.0Vdc = Inacve)
BMS input port Yes (> 3.0Vdc = Standby and < 1.0Vdc = Acve)
Status output port Yes (open drain, 32Vdc / 150mA max,
ve assignable status types)
Protecons High/low input voltage, high temperature, output short
circuit and reverse baery polarity (input + output)
Indicaons Input status, output (charge-) status, error
Baery connecons 3x M6 screw terminal
Enclosure body size (HxWxD) 70 x 128 x 170mm
Total weight 1.2kg
Protecon class IP21
Standards EMC: 2014/30/EU, Low voltage direcve: 2014/35/EU,
RoHS: 2011/65/EU, Automove: EN50498 („E“ pending)
Note: the given specicaons are subject to change without noce.
¹⁾ Maximum output current tolerance is +/-10%. Automac output current derang at
Tambient > 40°C.
²⁾ Selectable by DIP switch. All standard charge voltages can also be modied by the Samlex
Dashboard applicaon.
Please act according to your local rules and do not dispose of your old products
with your normal household waste. The correct disposal of your old product
will help prevent potenal negave consequences for the environment and
human health.

20
6. WARRANTY CONDITIONS
Samlex Europe (Samlex) warrants this product to be free from defects in workmanship or
materials for 24 months from the date of purchase. During this period Samlex will repair the
defecve product free of charge. Samlex is not responsible for any costs of the transport of
this product.
This warranty is void if the product has suered any physical damage or alteraon, either
internally or externally, and does not cover damage arising from improper use, or from use
in an unsuitable environment.
This warranty will not apply where the product has been misused, neglected, improperly
installed or repaired by anyone other than Samlex. Samlex is not responsible for any loss,
damage or costs arising from improper use, use in an unsuitable environment, improper
installing of the product and product malfunconing.
Since Samlex cannot control the use and installaon (according to local regulaons) of their
products, the customer is always responsible for the actual use of these products. Samlex
products are not designed for use as cricital components in life support devices or systems,
that can potenally harm humans and/or the environment. The customer is always responsible
when implemenng Samlex products in these kind of applicaons. Samlex does not accept any
responsibility for any violaon of patents or other rights of third pares, resulng from the
use of the Samlex product. Samlex keeps the right to change product specicaons without
previous noce.
Examples of improper use are:
- Too high AC input voltage applied
- Reverse connecon of baery polarity
- Connecng wrong baeries (too high baery voltages)
- Mechanical stressed enclosure or internals due to harsh handling or incorrect packaging
- Contact with any liquids or oxidaon caused by condensaon