szwengao C300S Series User manual

IMPORTANT SAFETY INSTRUCTIONS
Save these Instructions –Danger: To reduce the risk of risk of fire or electrical shock carefully obey
these instructions.
◆Confirm the voltage available at each country location before using the charger.
◆The C300S series is designed to charge 12V, 24V, 36V and 48V lithium batteries. Do not attempt to use with
batteries with voltages not matching the chargers specified voltage.
◆If the sharpness of the plug does not fit the power outlet, use an attachment plug adaptor of the proper
configuration for the power outlet.
◆Do not probe the charger with conductive materials.
◆Do not use this product in an enclosure containing lead-acid batteries. These batteries vent explosive
hydrogen gas, which can be ignited by sparks from electrical connections.
◆Do not use this product where there are flammable fumes or gases.
◆Do not try to use the charger for any other purpose than what is presented in this manual.
◆Unplug the charger before cleaning and when there is no battery pack in the charger.
◆Do not try to connect two chargers together.
◆Do not use the charger in the circumstances that the output Polarity does not match the load polarity.
◆The cover may under no circumstances be opened. If the cover is damaged, then the charger may no longer
be used.
◆Do not recharge non-rechargeable batteries.
◆Do not connect DC clamps to the carburetor, fuel lines, or sheet metal body parts.
◆Never attempt to charge a frozen battery.
WARNING
To avoid the risk of fire, electrical shock, or electrocution.
◆Always remove the battery pack before cleaning, inspecting, or performing any maintenance on the tool.
◆Changes or modifications not expressly approved by the party responsible for compliance could void the
user’s authority to operate the equipment.

NOTE
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 or television reception, The reception
can be determined by turning the 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 the receiver.
◆Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
◆Consult the dealer or an experienced radio/TV technician for help.
CHARGING A BATTERY
Follow these steps to charge a battery:
1. Connect the DC output cable 3 to the battery terminal receptacle.
2. Plug the power plug 1 into wall outlet.
3. The POWER LED light should be ON.
4. When batteries are fully charged, the LED indicator will be GREEN. Unplug the charger from the wall, then
the battery receptacle.
COLOR LED FOR STATUS INDICATION
The Charger LED Light 2 illuminates in a specified order to show the current battery status.
Red: battery is charging
Green: fully charged

FUNCTION & SAFETY
Dielectric strength (test 1min)
Input to Output
3KVac/10mA/1min
Input to Case
1.5KVac/10mA/1min
Output to Case
0.5KVDC/10mA/1min
Ground test
Ground impedance < 0.1 Ω
Safety standard
GB4943/EN60950, reference
EMC
CE & RE
EN55022 - Class B
ESD & RS
EN/IEC 61000-4-2 & EN/IEC 61000-4-3
CS
EN/IEC 61000-4-6
Moisture-proof
GB/T2423.4-1993，24～45℃95%RH，48h
MTBF
MTBF≥100,000H
Waterproof level
IP65
1. Short-circuit protection –protects the charger from short-circuit damage.
2. Overcurrent protection –protects the charger from over-current demand.
3. Overvoltage protection –protects the batteries from damage.
4. Overtemperature protection –protects the charger and batteries from damage.
5. Waterproof protection - protects the charger from damage.
DIMENSIONS
The dimensions have a ±0.5mm tolerance

2-STAGE AUTOMATIC CHARGING
This is a fully automatic battery charger with 2 charge stages.
Automatic charging protects your battery from being overcharged so you can leave the charger connected to
the battery indefinitely.
2-stage charging is a sophisticated charging technique that gives your battery longer life and better
performance compared to using traditional chargers.
BULK (CC MODE)
The Bulk stage reduces charging time by charging the battery at the maximum rate (constant current) to a set
voltage, at which point the battery is approximately 80% charged.
ABSORPTION (CV MODE)
The absorption stage charges the battery to 100% by adjusting the charge rate allowing the battery to absorb
more power.

SPECIFICATIONS
P/NO.
WG-12C300S
WG-24C300S
WG-36C300S
WG-48C300S
Input rated voltage
110/230V AC
Input voltage range
90~265V AC, 50/60Hz
Efficiency
94-96% @ 230VAC IN; 92-94% @ 110VAC IN
Output voltage
14.6V DC
29.2V DC
43.8V DC
58.4V DC
Charging current
20A
10A
6.8A
5A
Output power
300W
300W
300W
300W
Ripple & Noise
300mVp-p
300mVp-p
400mVp-p
400mVp-p
Power factor
PF>0.98/110VAC & PF>0.95/220VAC
Working temperature
Working temperature
Working humidity
20% ~ 90% RH
Dimension
200*78*33mm (7.87*3.07*1.3 inch)
Weight
1.1kgs
Input cables type
1m cables with plug (UK, USA, AU, EU optional)
Output cables type
1m red/black cables with standard rings M8
Cooling
Cooling by free air convection
LIMITED WARRANTY
◆We take great pride in our quality, value and performance and believe that this product should offer you
trouble free operation throughout its lifetime providing you take care to follow the simple instructions in the
product documentation. If you experience any problems with your product, please feel free contact with us.
◆szwengao provides a one year warranty from the date of purchase, to the original purchaser. This warranty
covers manufacturing defects in material and workmanship only. szwengao does not cover damage or failure
caused by abuse, misuse, faulty installation, improper maintenance, or any attempted repairs not carried out by
szwengao.
◆There will be no obligations or liability on the part of szwengao for consequential damages arising from the
use of the product or any indirect damages with respect to loss of property, revenue, or costs for removal,
installation, or reinstallation.
◆For warranty service, all shipping charges for returns should be prepaid. If the requested repairs or service
are within the terms of this warranty then the item will be returned to you on completion without any charge.
The unit must be in its original packaging with any original accessories. szwengao will not be responsible or
accept any liabilities for any loss or damage to additional items which are sent with returned product.
◆If the product is not covered under the terms of this warranty. szwengao will advise you of the costs to carry
out any repairs necessary and the unit will be shipped to you on receipt of payment for the work including the
return freight charges. Please allow 2 to 4 weeks for return of your product. Under normal circumstance we try
to ensure we carry out warranty repairs within 5 working days. We cannot be held responsible for delays in
shipping.
CONTACT SZWENGAO
A: 2/F A, Bldg.A2, Anle Ind. Hangcheng RD., Xixiang Street, Baoan Dist., Shenzhen, China 518102
T: [phone] E: [e-mail] W: www.wengaoelec.com