Modernum smart 50 User manual

USER GUIDE
Battery Charger
Smart 50
with built-in flashlight
for 6 – 200Ah lead-acid atteries
Please read this user guide carefully before using the charger
Use protective eyewear when handling atteries
INTRODUCTION
Thank you for choosing a professional quality product from
MODERNUM! This advanced and user-friendly attery charger
will optimize performance and lifetime of your attery.
This intelligent and fully automatic charger can e used to
charge any type of lead-acid atteries, including AGM and GEL
types from 6 to 200Ah. It has a flashlight that automatically
turns on while not connected to the attery.
Visit www.modernum.se for more info a out us.
SAF TY
•This charger is made for charging 12V lead-acid
atteries. Do not use it for other purposes or with other
attery types.
•Do not try to recharge non-rechargea le atteries.
•Do not use the charger if its casing, terminals, clamps or
ca les are damaged.
•If the supply cord is damaged, it must e replaced y the
manufacturer, its service agent or similarly qualified
persons in order to avoid a hazard.
•Use protective eyewear when handling atteries, and
connecting or disconnecting it.
•Battery acid is corrosive. If it comes in contact with skin
or eyes – rinse with plenty of water and contact a doctor
immediately.
•During charge, a attery can emit explosive gases. Make
sure there are not sparks or flames close to it, and
ensure good ventilation.
•Never charge a attery that is frozen.
•Do not place the charger on top of the attery.
•Do not cover the charger.
•The charger is protected against overheating. If the
am ient temperature is too high, the charging current is
reduced.
•During the charge, the charger may intermittently
provide a 15.0V charge voltage. Ensure that no

equipment that may e damaged y this voltage level is
connected to the attery during charging.
•This appliance can e used y children aged from 8 years
and a ove and persons with reduced physical, sensory
or mental capa ilities or lack of experience and
knowledge if they have een given supervision or
instruction concerning use of the appliance in a safe way
and understand the hazard involved. Children shall not
play with the appliance. Cleaning and user maintenance
shall not e made y children without supervision.
•Make sure that the charger switched to maintenance
mode after normal charging is completed, if you want to
leave it unattended and connected for a long time. If it
does not leave charge mode after maximum time,
disconnect charger from the attery. See technical
specifications elow for info a out time limit.
•All atteries will eventually fail. If that happens during
charging, the charger will detect it, ut there may e
some rare faults in the attery, so do not leave it
charging unattended for longer periods of time.
•You need to have read and understood the full context
of this user guide efore you start using the attery
charger.
G TTING START D
1. Connecting the charger: Connect the charger to the
supply mains. A flashlight on the top will automatically
turn on to assist you in dark situations. The attery
terminal not connected to the chassis has to e
connected first. The other connection is to e made to
the chassis, remote from the attery and fuel line. The
red clamp should connect to the positive (+) pole of the
attery and the lack clamp to the negative (-) pole.
For stand-alone atteries: Connect the charger to the
supply mains. Connect the red clamp to the attery’s
positive (+) pole, and then the lack clamp to the
attery’s negative (-) pole.
2. When all 4 charge level indicators are constantly lit, the
attery is fully charged and has entered maintenance
mode. The attery will e kept fully charged as long as
charger is plugged in to the mains.
INSTRUCTIONS
1. Connect the charger as explained in GETTING STARTED,
point 1, a ove. The 4 LEDs in the attery sym ol will
flash for a few seconds. Then it will start to analyze the
attery, and the charge level indicators will start rolling
from “ attery empty” to “ attery full”. After a little
while, the LEDs will have a steady light indicating the
current attery charge level, and when charging is
finished all 4 LEDs will e lit.
2. If the red light elow the level indicators is lit constantly,

it means “FAULT” and indicates wrong connection to
attery (reversed polarity). Disconnect mains, then
clamps and reconnect as said a ove.
3. When charging, the yellow and green indicators will
show the current charge level of the attery, when
constantly lit.
Lamp lit – Battery not connected
Lamp+Red – wrong polarity to attery
Yellow+Green rolling – Charging
Yellow+Green constant– fully charged
Yellow+Green+red constantly lit -
charging timeout (charge cycle finished
without reaching full charge)
4. After charging, disconnect the attery charger from the
supply mains. Then remove the chassis connection and
then the attery connection.
For stand-alone atteries: After charging, disconnect the
charger from the supply mains. Then remove the lack
clamp and then the red clamp.
It is recommended to store the charger in its original ag
when not in use.
5. By leaving the clamps on the attery after charging, and
mains plugged in, the charger will automatically switch
to 13.7V maintenance mode as long as it is connected to
the mains.
6. To stop or interrupt charging, unplug the supply mains,
at any time, and then remove clamps.
CHARGING CURV
Reference charging time (hours) to 85 % capacity.
Time varies with different atteries and conditions.
25Ah: 6h 75Ah: 12h 100Ah: 21h 150Ah: 31h
Note: If left connected, it is programmed to restart from
Step3 after 7 days, to refresh the attery.

SPECIAL FEATURES
Flashlight: There is a uilt-in flashlight in the front of the
charger, on the top of casing just in front of the attery
sym ol. It will automatically turn on when the charger is
plugged in. It will switch off if connected to a attery.
Temperature sensor: The temperature affects the atteries
a ility to receive charge. This product has a sensor in the
lack clamp, which compensates for temperature variations
to give optimal charge in cold as well as warm conditions,
avoiding the common pro lem of insufficient charging in cold
weather and over-charging at high temperatures.
Storage and travel: To make it easy to ring the charger with
you, and for compact storage - use the cloth ag to protect it
while not in use.
FAULTS INDICATIONS & TROUBL -SHOOTING
1. Fault: Lamp+Red light (constant) is lit, Clamps
connected to the attery.
Probable cause: Reversed polarity protection
activated due to clamps connected to wrong
attery poles.
Action: disconnect the charger from the mains, re-
connect the clamps correctly and connect mains
again.
2. Fault: Charging does not start and flashlight does
not turn off. None of the attery level lights are lit.
Probable cause 1: Clamps do not have good
connection to attery.
Action: Check that clamps are connected well to
metal on oth attery poles. Check that connector
on the clamp ca le is pushed all the way into
connector on charger’s connector.
Probable cause 2: The attery voltage is too low
(<3V) for the charger to detect it, and it will not
start. This may e ecause the attery is worn or
faulty or has een overly discharged.
Action: Replace attery or you can try to connect
another attery in parallel, like when using jump-
start ca les:
Disconnect the charger, and then connect the
atteries to each other y connecting their positive
terminals (+) together using a jumper ca le, and
then connecting the negative terminals (-) using
another jumper ca le. Then connect the charger
and retry the process. If charging starts, disconnect
the jumper ca les and let charging continue until
attery is fully charged. If the charging does not
egin the attery is pro a ly defective and should

e replaced.
3. Fault: Charging started normally, ut did not
complete, and stopped. Yellow+Green+Red lights
are lit.
Probable cause 1: The attery has a fault that does
not permit it to e charged, e.g. a short circuit.
Action: Replace the attery (with lead-acid type).
Probable cause 2: Parallel load. If there is an
equipment using current from the attery while
charging, the charger may not e a le to charge
the attery within the safety time limit set for
safety reasons.
Action: Disconnect the parallel load and repeat
charging, or purchase a more powerful charger
that can handle the extra load.
Probable cause 3: Battery is too large and could
not e charged within the set safety time limit.
Action: Repeat charging.
4. Fault: The flashlight does not come on when the
charger´s power ca le is plugged into the mains
socket.
Probable cause: No power in mains socket. Or the
flashlight LED is roken. (You can still use the
charger ut it will e without flashlight function).
MAINT NANC
The charger is entirely maintenance-free. It has no user-
servicea le parts. Opening the charger will void the warranty.
The case may e cleaned using a soft, damp cloth. The
charger must e disconnected from the mains when eing
cleaned.
ACC SSORI S
The charger comes with clamp ca les and a set of ring
terminal ca les, which can e used for fixed installations. To
change ca les, press the unlock flange on the connector and
pull it out. Connect the desired new ca le. Push it all the way.
The flange should lock it.

T CHNICAL SP CIFICATIONS
Model: Smart 50
Type: Switch mode charger,
microprocessor controlled
For attery types (12V) lead-acid (incl. AGM, GEL)
For attery capacity 6 – 200Ah
Input voltage 220-240 VAC
Input current 0.7A
Back current ≤1mA
Charging Voltage 13.7 – 15.5VDC
Charging current Max 5A
Ripple voltage Max 70mV
Am ient temperature - 40 – +50°C
Cooling Convection
Spark protection Yes
Temperature sensor Yes (≈0.3V/10°C)
Desulphation error Yes after 15min if Imin<0,1A
Max charging time 80 hours (approximately)
Charging type 8 step;
Battery DC ca le (length) 1500 mm
Power ca le (length, type) 1400 mm, 2x0.75 mm
2
Dimensions (LxWxH) 230x40x38 mm
International Protection class IP54
Weight 0.5 kg (net)
C MANUFACTUR R D CLARATION
Made y: SM Power Innovations AB (SMPower)
Product: Battery charger Smart 50
The manufacturer guarantees that the unit complies with the
relevant standards. Tested and approved y Intertek.
LIMIT D WARRANTY
We guarantee the quality of this product. It is made to meet
high industrial production standards for electronics. This
limited warranty is made to the original purchaser of this
product, and is valid from the date of purchase, meeting the
mandatory warranty rights for the country of purchase. If the
product has workmanship defects or damages relating to
manufacturing or distri ution, contact the store where you
purchased the charger for warranty claims. The warranty is
void if the unit has een damaged due to careless handling,
a use or unauthorized repair, or has een opened, or screws
and/or la els have een removed. We are not responsi le for
any consequential costs, or shipping- or handling costs for the
return to the place of purchase. Nor are we lia le under any
other warranty than this one. This warranty is not
transferra le.
Note: Measurements such as time, %, lengths etc are approximates.
Doc.No: MAN-SMP176-17-ENGrev0-3 all rights reserved