Shark CB-750 User manual

1
6V 0.75A
Shark Battery Charger
User Guide
Model: CB-750
AC Input: 220-240V, 50-60Hz, 0.25A
DC Output: 12V 0.75A
Please read and understand all important safety and operating instructions before using this
charger. In addition, please read and follow all battery and vehicle manufacturer’s instructions
and cautionary markings.

2
IMPORTANT SAFETY INSTRUCTIONS
SAFETY PRECAUTIONS FOR WORKING IN THE VICINITY OF A BATTERY
1) Batteries generate explosive gases during charging. Charge batteries only in well-ventilated
areas.
2) Do NOT smoke, strike a match, or cause a spark in vicinity of battery or engine. Avoid
explosive gas, flames and sparks.
3) Remove all personal jewelry, such as rings, bracelets, necklaces, and watches while working
with a vehicle battery. These metal items may produce a short-circuit that could cause severe
burns.
4) Be extra cautious to reduce risk of dropping a metal tool onto the battery. It might spark
or short-circuit a battery or other electrical hardware which may cause an explosion or fire.
5) Wear complete eye protection, hand and clothing protection. Avoid touching eyes while
working near a battery.
6) Study all battery manufacturers’ specific precautions such as whether to remove cell
caps or not while charging, and recommended charging rates.
7) Clean battery terminals before connected with the charger. Be careful to keep corrosive
particles from coming in contact with your eyes.
8) When it is necessary to remove a battery from vehicle to charge, always remove grounded
(-) terminal from battery first. Make sure all accessories in the vehicle are off in order to
prevent an arc.
9) This charger is NOT intended to supply power to an extra-low-voltage electrical
systems or to charge dry-cell batteries. Charging dry-cell batteries may burst and cause
injury to persons and property.
10) NEVER charge a frozen, damaged, leaking or non-rechargeable battery.
11) If battery electrolyte contacts skin or clothing, wash immediately with soap and water. If
electrolyte enters eye, immediately flood eye with running clean cold water for at least 15
minutes and get medical attention immediately.

3
SAFETY PRECAUTIONS FOR USING THE CHARGER
1) Do NOT place the charger in the engine compartment or near moving parts or near
the battery; place it as far away from them as DC cable permits. NEVER place a charger
directly above a battery being charged; gases or fluids from battery will corrode and damage
charger.
2) Do NOT cover the charger while charging.
3) Do NOT expose to rain or wet conditions.
4) Connect and disconnect DC output only after setting AC cord from wall socket.
5) Use of not recommended or non-original attachments may result in a risk offire, electric
shock or injury to persons.
6) Do not overcharge batteries by selecting wrong charge mode.
7) To reduce the risk of damage to electric plug and cord, pull by the plug rather than the cord
when disconnecting the charger.
8) To reduce risk of electric shock, unplug charger from wall socket before attempting any
maintenance or cleaning.
9) Operate with caution if the charger has received direct hit or has been dropped. Have it
checked and repaired if damaged.
10) Any repair must be carried out by the manufacturer or an authorized repair service
inorder to avoid danger.
SHARK CB-750 CHARGER
1) The CB-750 is perfect for keeping all of your 12V and 6V lead-acid batteries in top condition,
including WET (Flooded), GEL, MF (Maintenance-Free) and EFB (Enhanced Flooded Battery).
2) Built-in intelligent microprocessor makes charging and maintaining faster, easier and safer.
3) This charger has safety features, including spark protection, protection against
reversed polarity, short circuit, over current and overcharge.
4) The CB-750 charger has auto-memory, which returns to last selected mode when restarted.
5) When Green LED is flashing, the charger is in bulk charge at a constant 750mA rated
current output. When Green LED turns to steady light, the battery is fully charged.
6) Since this is a battery maintainer and you will keep it connected with vehicle battery for
a long time, do monitor monthly. Follow the battery manufacturer’s instructions for
adding distilled water if applicable.

4
Technical specifications
AC Input 220-240V, 50-60Hz, 0.25A
DC Output 12V, 0.75A;
6V, 0.75A
Minimum Voltage > 4V for 6V batteries
> 8V for 12V batteries
Housing Protection IP60
Battery Type All Types of 6V and 12V Lead-acid batteries
Accessories Included Clamp Connectors, Ring Connectors
Ambient Temperature
0
℃
~ +40
℃
CONNECTING TO THE BATTERY
1) Identify polarity of battery posts. The positive battery terminal is typically marked by (+)
symbol. Negative battery terminal is typically marked by (-) symbol.
2) Do not make any connections to the carburetor, fuel lines, or thin metal parts.
3) Identify if you have a negative or positive grounded vehicle. This can be done by identifying
which battery post (-) or (+) is connected to the chassis.
4) For a negative grounded vehicle (most common): connect the RED POSITIVE clamp /
ring connector first to the positive battery terminal, then connect the BLACK NEGATIVE
clamp / ring terminal to the negative battery terminal or vehicle chassis.
5) For a positive grounded vehicle (very uncommon): connect the BLACK NEGATIVE
clamp / ring terminal first to the negative battery terminal, then connect the RED
POSITIVE clamp / ring terminal to the positive battery terminal or vehicle chassis.
6) When disconnecting, disconnect in the reverse sequence, removing the negative
clamp first(or positive clamp first for positive ground systems).
7) Follow these steps when using 12V accessory plug (CB-750 does not have this accessory):
keep the vehicle hood open. Connect the end of the 12V accessory plug to the charger; insert
the 12V accessory plug into the vehicle’s 12V outlet. If the vehicle’s ignition key has to be on
in order for the 12V outlet to supply power, turn the key without starting the engine.
8) A marine (boat) battery must be removed and charged on shore. To charge it on
board requires equipment specially designed for marine use.

5
CHARGING MODES
CB-750 has three modes: Standby, 12V and 6V. Do not operate the charger until
you confirm the appropriate charge mode for your battery.
Mode Action
Standby
Not charging or providing any power (Green LED)
12V Charging and Maintaining 12V WET/GEL/MF/EFB
batteries (Blue LED)
6V Charging and Maintaining 6V WET/GEL/MF/EFB
batteries (Green LED)
NOTICE: Make sure your battery to be charged / maintained is in good condition.
The CB-750 cannot be used to recover severely discharged or dead batteries.
How to deal with the batteries which are deeply discharged, but in good condition?
1. Make sure the battery is in good condition (not dead) and was deeply discharged only.
You can use the battery analyzer to get the result.
2. Jumpstart your vehicle or use a battery charger with recovery function to activate
the battery until the battery voltage increases to normal condition. For 12V batteries, the
minimum normal voltage is above 8 V at least; for 6V batteries, the minimum normal voltage
is above 4 V at least.
3. Use the CB-750 Charger / Maintainer to the rest charging and maintaining work.

6
ERROR LED
LIGHT
CAUSE SOLUTION
1
Steady Red
Warning!LED Reversed polarity
Exchange the red and black
clamps or ring terminals to the
correct battery posts
2 Flashing Red
Warning! LED
1) Open-circuit
2) Dirty Battery Posts
3) Dead Battery
(voltage below 1V)
4) Output Short Circuit
1) Connect the red and black
clamps or ring terminals
to the battery posts
2) Clean the battery posts
3) Replace the battery with
anew one immediately
4) Disconnect red and black
output terminals
3
Slow flashing Red
Warning! LED
+ 6V LED
Charging 12V battery
in 6V mode
Press Mode button to choose
correct charging mode.
CAUTION: If you choose
12V mode for 6V battery,
the 6V battery will be damaged!
4 Flashing Charging
LED
and Warning! LED Overheat protection
Current reduces when
temperature in charger is
too high. After cooling
down, charging will resume
5
Quick flashing Red
Warning! LED
+
Corresponding
charging mode LED
Battery cannot store
electric charge
during charging
Replace the battery
6
Only corresponding
charging mode LED
+ Charging LED is OFF
In desulphation
process ------
7
Red Warning! LED
light flashes
2x stop for 3 secs,
2x stop for 3 secs,…
Battery cannot be
recovered through
desulphation process
Replace the battery

7
WARRANTY
1) This product is warranted to the original purchaser for a period of two (2) years from the
original shipping date, to be free of defects in material and workmanship.
2) This warranty is void if the product has been damaged by accident, in shipment,
unreasonable use, misuse, neglect, improper service, commercial use, repairs by
unauthorized personnel or other causes not arising out of defects in materials or
workmanship.
Official Distributor:
ASP Group s.r.o.
Address: Staroplzenecka 290, 326 00 Letkov
Czech Republic
E-mail: [e-mail] / Tel.: [phone]
www.aspgroup.eu