| Prod Model: |
QW480-370-S |
| Input Voltage: |
AC100-240V 50/60Hz |
| Desktop Type: |
Yes |
| Delivery Time: |
15days |
| Warranty: |
One Year |
| Charger Type: |
Electric Charger |
| Type: |
Lead Acid Battery |
| Nominal Voltage: |
48V |
| Socket Type: |
Can Be Customized |
Product Description
2200W Electric Vehicle E-Car E-Bus 48V 37A Lead Acid Battery Charger
1.Product Name
| Product Name | Model | Rated Input Voltage (Vac) | Standard Voltage (Vdc) | Max. Output Voltage (Vdc) | Max. Output Current (A) |
| Sealed Lead-acid Battery | Flooded Lead-acid Battery |
| 48V/37A Lead-acid Battery Charger | QW480-370-S(E) | 220 | 48 | 58.8 | 63.6 | 37 |
Note: Outputvoltage and current can be customized.
2. 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 forklift, electric vehicles, electric motorcycles, electric sweepers, electric boats, electric sightseeing cars, electric golf cart, electric tractor, electric lift trucks, electric medical equipment, electric transportation trucks.
3. 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.
4. 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.
5. 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: -20ºC~45ºC (-20ºF~+113ºF)
Storage Temperature: -40ºC~+85ºC (-40ºF~185ºF)
Dimensions (mm): 270(L) × 150(W) × 84(H)
Net Weight: 3Kg
6. Protection Features
1) Over Temperature Protection: When the charger internal temperature reaches protection point, the charger will stop charging automatically and the red alarm light will turn on.
2) Output Short-circuit Protection: When the charger appears short-circuit, it will cut off the output current and the red alarm light will turn on.
3) Reverse Polarity Protection: When the battery polarities are reversely connected, the charger will cut off the connection and the red alarm light will turn on.
4) Output Over-Voltage protection: When the charger output over-voltage, it will cut off the output current and the red alarm light will turn on.
5) Battery Failure Protection: When the battery appears internal failure and can not be 100% fully charged, the charger will switch off at regular time and the red alarm light will turn on.
7. LED Indicator
GREEN Light ON: fully charged or no connected.
BLUE Light flash: battery is being charged.
RED Light ON: Charger under protection (over temperature protection, output short-circuit protection, reverse polarity protection, output over-voltage protection, battery failure protection).
8. 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.
9. Accessories
1) 1 x Input power cable (according to the countries plug option)
2) 1 x use manual
3) 1 x warranty card
Note: output connectors or terminals can be customized, neutral box packing is available
Quality is our priority, win by quality" which is the origin of the our company name --Quawin.
We always highly focus on Quality Assurance and completed After-Sales Service which based on competitive price. Our QA/QC Department performs strict quality control measures on all incoming main boards, spare parts and throughout our entire production process to ensure the high quality of each products. Pursuing the goal of 'No Defect on Quality, No Claim from Customers, ' we will continue to follow international standards to provide customers with satisfactory products.
As an eight years experience manufacture, we have built a powerful R&D team which has abundant knowledge and operational experience that can develop new products and improve existing models in order to meet growing market demands. This high efficient and energetic team is good at overcoming all kinds of obstacles.
We strive for 100% customer's satisfaction through continuous improvement and now our high quality products and thoughtful services have got good reputation from customers in the North America, South America, Europe, Asia and other countries and regions.
We currently rolls out thousands of products such as E-bike battery, golf car battery, UPS battery, BMS, solar battery, backup power battery and all kinds of matched chargers etc.
To keep ahead of the competition, you need a supplier who can keep up with your demands. Please contact us and let our excellent sales team to provide perfect service to you at once.
