2S 20A 7.4V 8.4V 18650 Lithium battery protection board/BMS board standard/balance

$0.01

Availability: 1 in stock

SKU: 32863604994

NOTE: after batteries connected to BMS please connect charging voltage for short time to the BMS to activate it.

Applicable scope: Suitable for lithium batteries with nominal voltage of 3.7V and full voltage of 4.2V (including 18650, 26650, polymer lithium batteries, without limitation on the dimensions)

Product Size: 45*15*3.4mm (Standard), 48*20*3.4mm (Balancing)

Charging voltage: 8.4V – 9.0V

Continuous discharge current (upper limit): 20A (If the cooling environment is not good, reduce the load current use)

Continuous charge current (upper limit): 10A

Standard Edition: Suitable for starting drills with currents up to 25A below 50W, or resistive loads below 168W.

Balanced version: Suitable for starting currents below 25A and below 50W power drills, or resistive loads below 168W, with balanced charging function.

Note 1: The successful start of power drill requires two 10C-20C power batteries, or four 5C-10C power batteries (ordinary 18650 can not start drill! ! !); 0V and 8.4V cable, use 2 square mm Above copper wire (cannot use nickel plate!!!)

Note 2: Connect 0V, 4.2V, 8.4V according to the diagram strictly. When connecting the battery for the first time, it needs to be charged before output.

Note 3: When the battery is charged, “430” resistance heating is a normal phenomenon, indicating that the equalizing circuit is working; if the “430” resistance is also heating in the state of not charging, please check whether the wrong line is connected.

For some customers with poor electronic foundation, please explain: Do not mix good batteries and bad batteries together! The capacity/internal resistance of 2 batteries should be as close as possible! (1 good battery + 1 bad battery = 2 battery use effect).

Package Include:

1* BMS board

Why choose us?

We have our own SMT factory

Professional design team, our develop engineers covers hardware system design, RF design, software design (C, C++, ASM, python, JAVA, etc.). Especially in ARM, mbed, Arduino® field.

Professional instruments and equipment for development and test,

engineers and support engineers.

What Can We Do For You?

Hardware design

ARM and Mbed system software design

Mechanical structure design;

Automatic control system design;

PCB & SMT produce;

OEM & ODM.

Accessory Type

Battery Accessories

Brand Name

Heltec Automation

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