CN3791 1S Lithium-ion battery charger Voltage Current adjustable 3.7V 4.2V 12V Lithium Battery Charging Board MPPT Solar Panel
- Minimal order
- 100 pieces
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Product Specifications
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Product Description
Overview
Quick Details
Place of Origin:China
Brand Name:Stark
Model Number:CN3791
Type:MPPT, Switching Buck Mode DC-DC Conversion
Application:Charger Controller, Solar Working Station, Voltage Controller, Solar System Controller
Max PV Voltage:4.2V
Certificate:CE
Warranty:15days
MPPT efficiency:98%(MPPT Efficiency 99%)
Voltage:Solar panel nominal voltage selection corresponding module
Output voltage:4.2V
Output current:3a
Wiring method:pad
Size:31*49mm
Packaging & Delivery
Selling Units:Single itemSingle package size: 12X7.5X8 cm Single gross weight: 0.500 kgPackage Type:NEUTRAL CARTON Picture Example:
Lead Time :
| Quantity(Pieces) | 1 - 300 | 301 - 600 | >600 |
| Est. Time(days) | 15 | 25 | To be negotiated |
Online Customization

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Parameters Table | ||
product name | CN3791MPPT solar controller | |
size | 31*49mm | |
working voltage | Solar panel nominal voltage selection corresponding module | |
output voltage | Nominal 3.7V 4.2V Lithium Battery with Full Junction Stop Voltage | |
Output current: | Constant current 3A | |
other | IN + input positive, IN- input negative (SOLAR) OUT + battery positive, OUT- battery negative | |
MPPTBQ24650
MPPTCN3722
Solar Cell Maximum Power Point Tracking (MPPT)
The solar cell maximum power point tracking (MPPT) is to ensure that when the light intensity changes, the photovoltaic cell always outputs the maximum power to make full use of solar energy. Under normal circumstances, it is necessary to use a switch-mode DC-DC converter to implement the MPPT function to maintain the product of the output voltage and the charging current (output power) maximized
CN3791 adopts the switching step-down mode DC-DC conversion method to realize the maximum power point tracking function of photovoltaic cells. Its input voltage can reach 28V, which is very suitable for applications with a large difference between the input voltage and the battery voltage.
Charging Management Board Features:
1. High-end technology MPPT solar maximum power tracking charge management chip with trickle, constant current, and constant voltage charge management 2.Imported high frequency and low on-resistance dual MOS tube, high current diode, high efficiency flat high power inductor, alloy current detection resistor 3.Large aluminum heat sink at the bottom to ensure long-term stable operation at high currents 4. High-speed and efficient charging method 5.Dual status indicator, the red light flashes green when the battery is not connected, the red light is on when charging, and the green light is on when the battery is fully stopped
Product packaging
To better ensure the safety of your goods, professional, environmentally friendly, convenient and efficient packaging serviceswill be provided.
Company Profile
Chengdu bingzhong technology co.ltd.Is aninnovation technology company focusing on the production 、research and development of high-tach toys.Teaching equipment and electronic products ."Simpler experience technology" is our product concept,such as :mendoncino motor series,magnetic levitation platform series, and various types of brushless motor.
Certifications
Why Choose Us
long history
witrh over 8 years expierence in disply area.Our products are widely used for medical equipments,industirial device tools,vodeo player ,banking machine and so on
good quality
Our factory had first-class automatic product line and the specilized R&D team .Each of our products is checked bu QA carefully
Advantages of us
We have a good management team ,Excellent marketing staff and professional technical force to support you in 24 hours
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