Balanced Version 4S 40A Lithium Battery Protection Board BMS Lipo Charger Module

Description

1. Scope of application: Suitable for lithium batteries with a nominal voltage of 3.7V and a full voltage of 4.2V (Including18650,26650, polymer lithium batteries, no restrictions on the size)
2. Product size: 45 * 60 * 3.4mm
3. Charging voltage: 16.8V ~ 18.1V
4. Continuous discharge current (upper limit): 40A (if the heat dissipation environment is not good, please reduce the load current)
5. Continuous charging current (upper limit): 20A
6. Suitable for electric drills with starting current below 80A and power below 230W, with balanced charging function.

Note 1: Successful start of electric drill requires 4 10C-20C power batteries, or 8 5C-10C power batteries(recommended power battery models: SONY VTC4, VTC4A, VTC4A, VTC6), 0V and 12.6V connecting cables, Use copper wire of 3 mm squareor more (no nickel sheet !!).

Note 2: Connect 0V, 4.2V, 8.4V, 12.6V, 16.8V strictly according to the figure. When welding the wire, do not touch any components on the board. Do not intentionally short circuit.

Note 3: When welding the battery for the first time or charging, as long as a single battery exceeds 4.2V, the "430" resistor will heat up and discharge (discharge to about 4.19V to stop heating. If the "430" resistor is extremely hot (not hot enough) (Dare to touch), please check whether the wrong wire is connected.

Product Features

​Product Pictures

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About our company

2005, Established in Shenzhen, Guangdong, China, engaged in providing all kinds of diode, audino, integrated circuits, and electronic components.

2006-2008, Invested in Single Chip Microcomputer plant, specialized in manufacturing all kinds of sensor modules and power supply modules.

2009-2010, Started to manufacture Arduno-related modules, sensor modules, single development boards, etc.

2011-2012, Mainly provided various kinds of Arduno-related boards and shields, such as UNO R3, Mega, DUE, W5100 etc. At the same time, invested in the factory of 3D printer spare parts.

2013-2014, Took Arduno supplies as leading business,Cooperating with DIY factory, providing Ardu-related Robot products such as servo, control board cables and so on.

2015, Striving to develop overseas business, lower, accepting small batch orders. Investing in 3D printer factory and expanding product offerings.

FAQ

1. What is the terms of payment?

L/C,D/A,D/P,T/T,Western Union,MoneyGram

2. What is the delivery time?

Normally, 1-5 workdays after payment;
Special requirement orders, delivery time is negotiable.

3.If the products can't work after receiving it,what should I do?

We will replace new items for you at once, and respect your final decision for wrong goods.

4.If the products don't meet my demand after I received it,can I return it?

Yes,no problem.You can return back to us, we will refund your full payment.

5.what is the warranty?

1-2 years warranty according to different products.
1-3 months to replace new items for free.
All products are tested strictly for 2-3 times before leaving factory. we have earned very good reputation in quality,Certified by the ISO9001.