marinco CHARGE PRO 28106 User manual

502-2 & 503-2 instructions
instruction manual
marinco.com
Charge Pro™ Chargers
MODELS: 28106, 28210
The Marinco chargers are designed to both recharge your batteries, and extend
your battery’s life in applications where it is stored for long periods of time.
They are multi-stage, completely automatic, lightweight, silent, battery chargers
and each output produces 12 Volts DC at either a full 5 or 6 Amps (model
specific), while using much less AC current than other charger types. When
the charger is attached to your batteries and plugged into a standard 115 Volt
/ 60 Hz AC outlet, the red and green LED’s let you know the unit is recharging
and maintaining your batteries. Model 28210 uses Sense-Send Technology
to quickly charge two batteries and will automatically start charging when the
battery voltage becomes low.
WARNING THIS CHARGER SHOULD BE USED TO CHARGE ONLY LEAD
ACID OR AGM TYPE BATTERIES. USE ON OTHER BATTERY TYPES MAY
EXPLODE AND CAUSE PERSONAL INJURY.
BATTERY CHARGERS
Models Amperage No. Of Banks Volts
28106 6 Amps 1 Banks 12
28210 5/5 Amps 2 Banks 12/24

2
Charge Pro™ Charger Instructions
IMPORTANT SAFETY INSTRUCTIONS
A) SAVE THESE INSTRUCTIONS - This manual contains important safety and
operating instructions for the chargers. Read the entire manual before using.
Also read all instructions and cautions for and on the charger, batteries and
equipment in the vicinity of the batteries.
B) Use of an attachment not recommended by the manufacturer may result in a
risk of fire, electric shock or injury to persons.
C) To reduce the risk of damage to electric plug and cord, pull by plug rather
than cord when disconnecting the chargers.
D) An extension cord should not be used unless absolutely necessary. Use of
improper extension cord could result in a risk of fire and electric shock. If an
extension cord must be used, make sure:
i. That pins on plug of extension cord are the same number, size and shape
as those of the plug on the charger;
ii. That the extension cord is properly wired and in good electrical condition
iii. Wire size is large enough for ac ampere rating of the charger as specified
below
E) Do not operate charger with a damaged cord or plug – replace the cord or
plug immediately.
F) Do not operate the charger if it has received a sharp blow, been dropped, or
otherwise damaged in any way.
G) Do not attempt to disassemble the charger.
H) To reduce the risk of injury unplug charger from outlet before attempting any
maintenance or cleaning. Turning off controls alone will not reduce the risk.
I) Do not expose charger to rain or snow.
Extension Cord Length Feet (M) AWG Size of Cord
25 (7.6) 18
50 (15.2) 16
100 (30.5) 14

3
Charge Pro™ Charger Instructions
Personal Precautions
A) Someone should be within voice range or close enough 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 a battery.
D) If battery acid contacts skin or clothing, wash them immediately with soap
and water. If acid enters the eye, immediately flood the eye with cold, running
water for at least ten minutes and get medical attention immediately.
E) NEVER smoke or allow a spark or flame in the vicinity of the battery.
F) Be extra cautious to reduce risk of dropping a metal tool onto the battery. It
may spark or short-circuit the battery or other electrical part that may cause
an explosion.
G) Remove all personal metal items such as rings, bracelets, necklaces, and
watches when working with a lead-acid battery. A lead-acid battery can
produce a short-circuit current high enough to weld a ring or the like to metal,
causing a severe burn.
H) 8. Use battery charger for charging a lead-acid battery only. It is not intended
to supply power to a low voltage electrical system other than in a starter
motor application. Do not use battery charger for charging dry cell batteries
that are commonly used with home appliances. These batteries will burst and
cause injury to persons and damage to property.
I) NEVER charge a frozen battery.
WARNING – RISK OF EXPLOSIVE GASES
1) WORKING IN VICINITY OF A LEAD-ACID BATTERY IS DANGEROUS.
BATTERIES GENERATE EXPLOSIVE GASES DURING NORMAL
OPERATION. FOR THIS REASON, IT IS UTMOST IMPORTANCE
THAT YOU FOLLOW THE INSTRUCTIONS EACH TIME YOU USE THE
CHARGER.
2) To reduce the risk of battery explosion, follow these instruction 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.

4
Charge Pro™ Charger Instructions
Preparing To Charge
A) Before charging a battery with the charger, read the following precautions: 1.
Do NOT operate the charger if the cables or an LED is damaged.
B) Make sure all accessories on the product you are charging are OFF.
C) If the battery or batteries must be removed from the product, always remove
the grounded terminal from the battery first. Make sure all accessories in the
product are off, so as not to cause an electrical arc.
D) Be sure the area around the battery is well ventilated while the battery is
being charged.
E) Clean battery terminals. Be careful to keep corrosion from coming in contact
with eyes.
F) Add distilled water in each cell until battery acid reaches levels specified by
the battery manufacturer, if applicable. Do not overfill. For a battery without
cell caps, carefully follow the manufacturer’s recharging instructions.
G) Study all battery manufacturer’s specific precautions while charging and
recommended rates of charge.
H) Determine voltage of battery by referring to product’s manual, and make sure
it matches output rating of battery charger.
AC Connection and Grounding Precautions
! DANGER DO NOT OPERATE THIS CHARGER WITH A TWO BLADED
ADAPTER PLUG OR EXTENSION CORD. DOING SO CAN RESULT IN
SERIOUS PERSONAL INJURY.
AFTER SECURING THE BATTERY CONNECTIONS, PLUG THE AC LINE
CORD INTO AN AVAILABLE AC OUTLET THAT IS PROTECTED BY A
GROUND FAULT CIRCUIT INTERRUPTER (GFCI) BREAKER.
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.

5
Charge Pro™ Charger Instructions
Choosing Charging Location
A) The charger should have at least eight inches of unobstructed area on all
sides of the unit for effective cooling. The case of this charger will become
warm during operation. Because the charger is convection cooled (airflow
over the back of the charger), the optimum mounting position for the charger
is vertical. Mounting on its back on a horizontal surface may cause the
charger to slightly reduce amperage output dueto the thermal protection built
in. Do not install the charger on carpeted, upholstered, or varnished surfaces.
B) Locate charger as far away from battery as dc cables permit.
C) Never place charger directly above battery being charged; gases from battery
will corrode and damage charger.
D) Never allow battery acid to drip on charger when reading electrolyte specific
gravity or filling battery.
E) Do not operate charger in a closed-in area or restrict ventilation in any way.
F) Do not set a battery on top of charger.
Mounting the Charger
A) Use corrosion resistant 3/16” dia. or # 10 bolts, backed by a flat washer, and
secured to the mounting surface with a split-ring lock washer.
B) Hold the charger to the mounting surface and mark the holes.
C) Remove the charger and drill the mounting holes.
D) Align the charger and assemble the mounting hardware. Secure the charger.
DC Connection Precautions
A) Connect and disconnect dc output clips only after removing ac cord from
electric outlet. Never allow the ring terminals to touch each other
B) Check polarity of the battery posts. The POSITIVE (POS., P, +) battery post
usually has a larger diameter than the NEGATIVE (NEG., N, -) post.
C) Connect Red charger output wire to POSITIVE post, Black charger wire to
NEGATIVE. See below diagrams for more details.
D) Do not face the battery when making the final connection.
E) When disconnecting charger, disconnect AC cord and then remove clips from
battery terminal.

6
Charge Pro™ Charger Instructions
Charge Cycle
A) Soft Start – Charger verifies connections are good and the battery is capable
of accepting a charge. Batteries with very low voltage (near dead) will be
slowly charged to not harm the battery. When the battery voltage reaches
10V for 30 seconds the charger switches to the next stage.
B) Bulk Stage – the charger uses constant current and charges the battery to
14.3 volts. When the battery holds the voltage of 14.3 volts for 30 seconds
the charger switches to the next stage.
C) Absorption Stage - the charger uses constant voltage to charge the battery
until the charge current drops just below the rated current for 30 seconds. At
this point the charger will switch to the next stage.
D) Float Stage – the charger finishes the charge cycle by keeping the battery
at 13.3 volts for a period of time and determines the battery is charged and
shuts down.
E) Maintenance – the charger will monitor the battery and if the battery voltage
drops below 12.8 volts or if 14 days have passed since the last charge the
charge cycle will start automatically.
OPERATING THE CHARGER – 5/5 Amp output
Model 28210 quickly chargers two batteries using Sense-Send Technology. The
charger senses the power needed per battery and sends the allocated power
needed.
If the two batteries connected to the charger have different discharged levels the
charger will send the majority of the power available to the battery needing the
most power and a lower amount to the battery needing less power. This results in
faster charging.
10 Amp
Charger
10 Amp
Charger
8 Amps
5 Amps
2 Amps
5 Amps
If the two batteries have drained equally the charger will send the same amount
of power to each battery.

7
Charge Pro™ Charger Instructions
LED Indicators
ON OFF Condition
Red Green Charger is in the “Soft Start” or “Bulk Stage” and the battery
is being charged. If the red LED stays on for more than 24
hours refer to Problem 1 in the troubleshooting section.
Red &
Green None Charger is in the “Absorption Stage” and delivering constant voltage to the battery. If the red and green light stay on for
more than 24 hours refer to problem 2 in the troubleshooting
section.
Green Red The charger has moved to the “Float Stage” and is topping
off the charge to the battery and keeping the battery ready to
use. The green light indicates your battery is ready to use. If
the green light stays on when your battery is known to be low,
refer to Problem 3 in the troubleshooting section.
OUTPUT
+ -
ENGINESTART
BATTERY
REFERTOPRODUCT
MANUALFOR
TROLLING
APPLICA
TIONS
POSITIVE
POSITIVE
OUTPUT #2 OUTPUT #1
ENGINE START
(OR TROLLING)
AC
28106 (6 amp) connection
with 1 12V battery. 28210 connection used with 2 independent
batteries (5/5 amps).
Output 1 and 2 maybe
connected in parallel for
a 12V 10 amp output.

8
Charge Pro™ Charger Instructions
ENGINESTART
BATTERY
REFERTOPRODUCT
MANUALFOR
TROLLING
APPLICA
TIONS
POSITIVE
POSITIVE
OUTPUT #2 OUTPUT #1
ENGINE START
(OR TROLLING)
AC
Specifications
Model: 28106 28210
Input voltage: 115 V 50/60 Hz AC
Input Amps (Max): 2.0 Amps 2.5 Amps
Input Voltage Range: 90-265A AC 50/60Hz
Banks: 1 2
Output Volts: 12V DC 12/24V DC
Absorption Charge voltage
(per bank): 14.3 V +/- 0.20 V
Float Charge Voltage (per
bank): 13.3 V +/- 0.20 V
Charging current: 6 amp 10 amp
Rechargeable battery type: Any 12 V lead acid batteries (Flooded and AGM)
Battery Charge capacity
(based on 50% drained
battery):
Group 24 through 31
(up to 120 Amp-Hours)
AC Cable Length: 6 Ft (1.8M)
DC Cable Length: 4 Ft (1.2M)
Protection type: IP68 (casing)
Dimensions: 3.5" L x 6.4" W x 2.3" 89mm L x 198mm W x
58mm D
5.5” L x 7.8” W x 2.4”
140mm L x 198mm W
x 58mm D
Weight 4.0 pounds (1.8 kg) 5.6 pounds (2.5 kg)
28210 connection used
with 2 12V batteries
connected in series for a
24V System.

9
Charge Pro™ Charger Instructions
Display Operating condition Solution
Red LED stays on for
more than 24 Hrs. One or more defective or
damaged cells Load test the battery and replace if necessary.
Charger has reduced its
output voltage below the
normal level due to a DC
overload or a DC short.
Remove the source of
the overload or short.
Disconnect the charger’s
black (NEGATIVE)
terminal from the battery.
Reapply AC power and
the green LED only
should now light.
On-board DC systems are
drawing more current than
the charger can replace.
Turn off all DC
equipment while
charging.
The red and green
LED’s stay on for
more than 24 Hrs.
On-board DC systems
are drawing between 1.5
– 3.5A.
Turn off all DC
equipment while
charging.
One or more defective or
damaged cells. Load test the battery and replace if necessary.
Extremely low AC voltage
at the battery charger Apply a higher AC voltage source or
reduce the length of the
extension cord.
Check battery
manufacturer’s specs on
battery charging.
Green LED stays on
when the battery is
known to be low.
Open DC output fuse. Replace DC output fuse
with a 10 amp fuse for
model 28106,15 amp
fuse for model 28210
output.
Faulty or contaminated
terminal connections. Clean and tighten or repair all terminal
connections.
One or more defective or
damaged cells. Load test the battery and replace if necessary.
Neither of the LED’s
turn on when the AC
power is applied
No AC power available at
the charger Connect AC power or reset the AC breaker on
the main panel
Component failure Go to www.marinco.com
under the resources tab,
refer to FAQ section.

10
Charge Pro™ Charger Instructions
MAINTAINING THE CHARGER
Periodically clean both battery terminals with baking soda and tighten all
connections. No other maintenance on the charger is required.
FCC Class B EMC Notice
This equipment has been tested and found to comply with the limits for a Class B
digital device, pursuant to part 15 of the FCC Rules. These limits are designed to
provide reasonable protection against harmful interference when the equipment
is operated in a commercial environment. This equipment generates, uses and
can radiate radio frequency energy and, if not installed and used in accordance
with the instructions, may cause harmful interference to radio communications.
Operation of this equipment in a residential area is likely to case harmful
interference in which case the user will be required to correct the interference at
his own expense.
If this equipment does cause harmful interference to radio or television reception,
which can be determined by turning this equipment off and on, the user is
encouraged to try to correct the interference by one or more of the following
measures:
• Reorient or relocate the receiving antenna.
• Increase the separation between the equipment and receiver.
• Connect the equipment into an outlet on a circuit different from that to which
the receiver is connected.