Giant GZL50 User manual

BATTERY CHARGER
OPERATOR'S MANUAL
GZL30 GZL50
Model No
Supply Volt
Charging Volt
Current
Fuse
Battery capacity
GZL30
230V~50Hz
DC12/24V
Max. 24A
25A
Min. 80Ah-Max. 20Ah
GZL50
230V~50Hz
DC12/24V
Max. 30A
30A
Min. 100Ah-Max. 300Ah
Please save these instructions. This manual contains important safety and operating instructions. Read
all instructions
INTRODUCTION
The battery chargers are designed to electricize lead-acid storage battery suitable for automobile shipping as the
power supply.
User should select the type charge by the capacity of the battery and confirm the voltage degree to manual
12/24V switch.
PROTECTION OF REVERSE POLARITY
PROTECTION OF OVER CHARGE
IMPORTANT SAFETY INSTRUCTIONS
1. This manual contains important safety and operating instructions. You may need to refer to these instructions
at a later date.
2. To reduce risk of injury, charge only wet cell, lead-acid automotive type rechargeable batteries. Other types of
batteries may burst causing personal injury and property damage.
3. Do not expose charger to rain or snow.
4. 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.
5. To reduce risk of damage to electric plug and cord, pull by plug rather than cord when disconnecting charger.
6. Make sure cord is located so that it will not be stepped on, tripped over, or otherwise subjected to damage or
stress.
7. Do not operate charger with damaged cord or plug, replace the cord or plug immediately.
8. 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.
9. 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.
10. To reduce risk of electric shock, unplug charger form outlet before attempting any maintenance or cleaning.
Turning off controls will not reduce this risk.
11. WARNING - RISK OF EXPLOSIVE GASES
a. WORKING IN VICINITY OF A LEAD-ACID BATTERY IS DANGEROUS. BATTERIES GENERATE
EXPLOSIVE GASES DURING NORMAL BATTERY OPERATION. FOR THIS REASON IT IS OF UTMOST
IMPORTANCE TO READ THIS MANUAL AND FOLLOW THE INSTRUCTIONS EXACTLY EACH TIME
BEFORE USING CHARGER.
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.
PERSONAL SAFETY PRECAUTIONS
1. Someone should be within range of your voice or close enough to come to your aid when you work near a
lead-acid or other battery.
2. Have plenty of fresh water and soap nearby in case battery acid contacts skin, clothing, or eyes.
3. Wear complete eye protection, and clothing protection. Avoid touching eyes while working near battery.
4. If battery acid contacts skin or clothing, wash immediately with soap and water. If acid enter eye, immediately
flood eye with running cold water for at least 10 minutes and get medical attention immediately.
5. NEVER smoke or allow a spark or flame in vicinity of battery or engine.
6 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.
7. Remove personal metal items such as rings, bracelets, necklaces, and watches when working with a lead-acid
or other battery. A lead-acid or other battery can produce a short circuit current high enough to weld a ring or the
like to metal, causing a severe burn.
8. Use the 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 may burst and cause injury to persons
and damage to property.
9. NEVER charge a frozen battery.
PREPARATON FOR OPERATION
PREPARING TO CHARGE
a. If necessary to remove battery from vehicle to charge, always remove the grounded terminal from battery first.
Make sure all accessories in the vehicle are off, so as not to cause an arc.
b. Be sure area around battery is well ventilated while battery is being charged. Gas can be forcefully blown away
by using a piece of cardboard or other non-metallic material as a fan.
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 cells. Do not overfill. For a battery without cell caps, carefully follow manufacturer's
recharging instructions.
e. Study all the 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 is set at
correct voltage. If charger has adjustable charge rate, charge battery initially at lowest rate.
CHARGER LOCATION
a. Locate charger as far away from battery as output cables permit.
b. Never place charger directly above battery being charged; gases from battery will corrode and damage
charger.
c. Never allow battery acid to drip 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.
DC CONNECTION PRECAUTIONS
a. Connect and disconnect dc output clamps only after setting any charger switches to off position and removing
ac cord from electric outlet. Never allow clamps to touch each other.
b. Attach clamps to battery posts and twist or rock back and forth several times to make a good connection. This
tends to keep the clamps from slipping off terminals and helps to reduce risk of sparking.
FOLLOW THESE STEPS WHEN BATTERY IS INSTALLED IN VEHICLE. A SPARK NEAR BATTERY MAY
CAUSE 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. POSITIVE (POS, P, +) battery post usually has larger diameter than
NEGATIVE (NEG, N, -) post.
d. Determine which post of battery is grounded (connected) to the chassi If negative post is grounded to chassis
(as in most vehicles), see item "e". If positive post is grounded to the chassis, see item "f".
e. For negative-grounded vehicle, connect POSITIVE (RED) clamp from battery charger to POSITIVE (POS, P,
+) ungrounded post of battery.
Connect NEGATIVE (BLACK) clamp to vehicle chassis or engine block away from battery. Do not connect clamp
to carburetor, fuel lines, or sheet metal body parts. Connect to a heavy gage metal part of the frame or engine
block.
f. For positive-grounded vehicle, connect NEGATIVE (BLACK) clamp from battery charger to NEGATIVE (NEG,
N, -) ungrounded post of battery. Connect POSITIVE (RED) clamp to vehicle chassis or engine block away from
battery. Do not connect clamp to carburetor, fuel lines, or sheet-metal body parts. Connect to a heavy gage metal
part of the frame or engine block.
g. When disconnecting charger, turn switches to off, disconnect AC cord, remove clamp from vehicle chassis,
and then remove clamp from battery terminal.
h. See operating instructions for length of charge information.

FOLLOW THESE STEPS WHEN BATTERY IS OUTSIDE VEHICLE. A SPARK NEAR THE BATTERY MAY
CAUSE 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. Connect POSITIVE (RED) charger clamp to POSITIVE (POS, P, +) post of battery.
c. Position yourself and free end of cable as far away from battery as possible - then connect NEGATIVE
(BLACK) charger clamp to NEGATIVE (NEG, N, -) battery post.
d. Do not face battery when making final connection.
e. When disconnecting charger, always do so in reverse sequence of connecting procedure and break the first
connection while as far away from battery as practical.
f. A marine (boat) battery must be removed and charged on shore. To charge it on board requires equipment
specially designed for marine use.
AC POWER CORD CONNECTION INSTRUCTIONS
The plug must be plugged into an outlet that is properly installed 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.
OPERATING INSTRUCTIONS
NOTE: Before using the charger, please review all safety and connection directions. Failure to do so can
damage battery and cause serious injury or death.
CHARGING
a. Connect the charger to the battery per the above instructions.
b. Connect the charger to AC outlet.
c. Press the MODE BUTTON to select the Battery Voltage Type that you will charge.
d. Press the TYPE BUTTON to select the Battery Construction Type that you will charge.
e. When charging is completed, unplug the charger from the AC outlet first and then disconnect the batteries with
charger. PANEL DIAGRAM
MAINTANENCE INSTRUCTIONS
This charger requires minimal maintenance. As with any appliance or tool, a few common sense rules will
prolong the life of the battery charger.
ALWAYS BE SURE THE CHARGER IS UNPLUGGED BEFORE PERFORMING ANY MAINTENANCE OR
CLEANING.
1. Store in a clean, dry place
2. Coil up the cords when not in use.
3. Clean the case and cords with a slightly damp cloth.
4. Clean any corrosion from the clamps with a solution of water and baking soda.
5. Examine the cords periodically for cracking or other damage and have them replaced if necessary.
6. WARNING: All other service should be done by qualified personnel only.
FOR INDOOR USE! Importer / Distributor:
GLOBAL EXPORT –IMPORT LTD.H1151 BUDAPEST SZEKELY E. U. 11.
Country of Origin: China
www.global-export-import.eu
1. Handle
2. Output current meter
3. Over current protection
4. Switchover
5. 12V/24V switch
6. Power fuse
7. Clamps
8. Input cable
9. Shell