1. Summary:

The battery charger has single chip microcomputer (MCU) controlled 4 stages intelligent charging technology, which can accurately track the battery charging process, and make the battery always in the best electrochemical reaction condition, in order to prolong its service life.

The charger input voltage range is wide, with multiple protection features, and high reliability. Control circuit adopts advanced high frequency transformer LLC half-bridge resonant soft-switching power supply control technology, the reasonable structure and thermal design make the charger with high efficiency, small dimension, light weight and greatly improve the portability.

 

2. Product Name/Model/Specification:

Product Name	Model	Rated Input Voltage (Vac)	Battery Standard Voltage (Vdc)	Max. Output Voltage (Vdc)		Max. Output Current (A)
				Sealed Lead-acid Battery	Flooded Lead-acid Battery
24V40A Lead-acid Battery Charger	SYLaBC-AD1.5KCH24-40	200~240	24	29.4	31.8	40
36V34A Lead-acid Battery Charger	SYLaBC-AD1.5KCH36-34	200~240	36	44.1	47.7	34
48V25A Lead-acid Battery Charger	SYLaBC-AD1.5KCH48-25	200~240	48	58.8	63.6	25
60V20A Lead-acid Battery Charger	SYLaBC-AD1.5KCH60-20	200~240	60	73.5	79.5	20
72V17A Lead-acid Battery Charger	SYLaBC-AD1.5KCH72-17	200~240	72	88.2	95.4	17
84V14.5A Lead-acid Battery Charger	SYLaBC-AD1.5KCH84-14.5	200~240	84	102.9	111.3	14.5

Note: a. Output voltage and current can be customized.

b. Click on the product name can link to the product and detailed information.

 

3. Application Scopes:

The charger are widely used for charging sealed lead-acid batteries, flooded lead-acid batteries and gel lead-acid batteries of electromobile, electric bicycle, electric tricycle, electric forklift, electric vehicles, electric motorcycles, electric sweepers, electric boats, electric sightseeing cars, electric golf cart, electric tractor, electric lift trucks, electric medical equipment, automated guided vehicles (AGV), electric transportation trucks.

 

4. Product Advantage

1) The charger inside is integrated with power factor correction (PFC) circuit, which can make zero pollution and avoid large current shock for the power grid.

2) High efficiency, small size, light weight: The charger is with over 90% efficiency. Proper structure as well as nice thermal design make the charger small and light with good portability.

3) Advanced technologies: Switching power supply type and MCU controlled 4 stages charging technologies can supervise the whole charging process and let the battery under best electrochemical reaction status, control the temperature rise and threshold voltage, that avoid overcharge or underfill, reduce gas evolution and water loss, prevent battery polarization, vulcanization and thermorunaway, extend the battery service life.

4) Exclusive precharge mode supplies activate, repair and prolonging life functions for long-term unused or deep sleep batteries.

5) High reliability: The charger is made of high quality military and industrial levels components. Advanced circuit design and strict production process according to ISO9001:2008 quality management system make the charger with low reject rate, high reliability and long service life.

6) The charger is reliable with multiple protections, such as over temperature protection, output short-circuit protection, reverse polarity protection, output over-voltage protection, battery failure protection, that prevent damage by faulty operations.

7) The charger case is made of aluminum alloy with surface oxidation treatment, high-grade, fashion, good heat dissipation ability, high hardness, antioxidative, non-fading.

8) Real-time display charging voltage, current and capacity

 

5. Charging Mode:

1) Precharge stage (T1): When the battery voltage is lower than normal standard, the charger can not withstand large current charging. The charger will supply small current for charging, which has the functions of activation, repair and battery life extension. When the output voltage reach normal value or at the T1 of the timing period, the charger will switch to fast charge stage automatically.

2) Fast charge stage (T2, T3): When battery is on the main period of charging, charger will quickly charge the batteries with a constant flow, at the maximum current which can be used to the battery. When the battery voltage raise up to the set value, the charging current will fall off gradually, when the values drops to the set value or at the T3 of the timing period, the charger will lower the charging voltage and enter to the float charge stage (if the time reaches to T2 time period, when the charging current haven't dropped to the set value of T2, charger will be off, and enter to battery failure protection status).

3) Float charge stage (T4): The charger will switch to float charge stage, which ensure the battery is fully charged and reduce gas evolution and water loss, avoid battery polarization, vulcanization and thermorunaway, extend the battery service life. When the output current drops to the set value or at the T4 of the timing period, the charger will switch to pulse maintenance phase automatically.

4) Pulse maintenance stage (T5, T6): in the pulse maintenance stage, the charger can compensate for the loss of the battery self-discharge, and recover the battery capacity by removing the hard crystallographic lead sulfate in the battery.

Note: a. Flooded lead-acid battery is slightly different on charging mode, please refer to charging curve to check the details.

b. Charging mode can be customized.

Charge curve as below:

 

 

6. Technical Specifications:

Input Voltage Range:  AC180V~264V

Input Frequency Range:  45~65Hz

Power Factor Correction:  ≥0.98

Full Load Efficiency:  ≥90%

Shock & Vibration:  SAEJ1378 Standard

Operating Temperature:  -10ºC~45ºC

Storage Temperature:  -40ºC~+75ºC

Dimensions (mm):  264(L) × 120(W) × 84(H)

Net Weight:  3.0Kg

 

7. Protection Features:

1) Over Temperature Protection: When the charger internal temperature reaches protection point, the charger will stop charging automatically and LED lights will be alarm in red. when temperature turn down and restart the charger to recover charging.

2) Output Short-circuit Protection: When the charger appears short-circuit, it will cut off the output current. When the condition is removed, charger returns to normal.

3) Reverse Polarity Protection: When the battery polarities are reversely connected, the charger will cut off the connection and the output fuse break. After replace the protector tube, connect the battery correctly, charger returns to normal.

4) Output Over-Voltage protection: When the charger appears output over-voltage, it will cut off the output current and LED lights will be alarm in red. When the condition is removed and restarts the charger to recover charging.

5) Cells Broken Protection: When some battery cells broken, output current still not reduce to the presetting point while reaching to the max setting charging time, then timing out, charging OFF under cells broken protection and LED lights will be alarm in red. When restart the charger to recover charging.

 

8. LED Indicator:

LED always green: fully charged or no connected.

LED flashes blue: battery is being charged.

LED always red: Charger under protection (over temperature protection, output over-voltage protection, cells broken protection).

 

9. Use Method:

1) Close the power switch firstly.

2) Connect the batteries to the output socket with output wires—positive to positive, negative to negative.

3) Plug the input wires correctly and connect to the input power source then.

4) Open the power switch, blue light flickers means battery is being charged.

5) Green light means battery is fully charged. You may switch off the charger or continue charging and let the charger at maintenance mode with pulse current.

6) Disconnect he input cable after switched off the charger.

7) Disconnect the output wires.

 

10. Maintenance and Precautions for Using:

1) Check the battery technical specification very carefully before charging, to make sure it matches the charger technical data.

2) Make sure charger output connect to the batteries on correct polarity.

3) Input/output connectors must be connected firmly during charging.

4) Reverse connect or short circuit are prohibited during charging.

5) If charger or battery found to be abnormal or damaged during charge, please unplug input and output wires right away.

6) If use other input wires, make sure the cable can withstand for the maximum input current of the charger, and the charger's input voltage is within its working scope.

7) If you need to extend the output connection cable, please make sure the cable can withstand for the maximum output current of the charger, and the voltage-drop between the charger and connection wire of the battery should be less than 1% of the battery voltage as possible. Otherwise, it may affect the effect of charging process.

8) High voltage and dangerous inside this charger, when there's a defect, please contact with factory. Users and the maintain person who is not professional staff in our company are forbidden to open or re-develop this product.

9) Never use during a lightning storm.

10) Don't wet the charger body, never use it in wet or rained place.

11) Never use it near the heat source or where is shined by the straight sunshine.

12) Never use it in or near the place of flammable gas.

13) Use it in the ventilated and dustless place.

14) Don't place rod or other metal objects at vent or other openings.

15) Never cover the air vent, always leave 250px space for it at least.

16) Don't shake, bump or throw it strongly.

 

11. Accessories:

1) 1 x Input power cable (according to the countries plug option)

2) 1 x use manual

Note: output connectors or terminals can be customized.