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BMS With I2C, SMBus Communication protocol for Li-ion/Li-Polymer/LiFePO4 5S-10S Battery Pack

Part number: HCX-D298V1

Features and Benefits

Programmable BMS with SMBus, I2C Communication protocol

1.Battery Management circuit board with SMBus for 5S~15S 80A Li-ion/Li-polymer and LiFePO4 battery pack;

2.BMS/PCB/PCM applies for 8S/9S/10S/11S/12S/13S/14S/15S/16S cells Li-ion/Li-polymer and LiFePO4 battery pack;

3.To prevent the battery packs from overcharge,overdischarge,over current, over temperature ,short circuit ;

4.The Maximal working current: 80A;

5.Compatible with both Li-ion/Li-polymer and LiFePO4 cells. 

HCX-D298v1 BMS mainly designed based on TI chips, TIBQ78350+BQ76940/BQ76930/BQ76940, and the mosfets for discharge and charge current we mainly use IRF4310/IRF3207/IRF1404 (Only for reference), the specified parameters as below (all the logical parameters are adjustable from software).

(Note: the pictures or parameters in this data sheet are only for your reference, those possibly could be different from the ones you will order. Due to the upgrading of the Hardware/Firmware/Software, Characteristics subject to change without notice, for more information, please contact our technical engineers by email: info@bestechpower.com

Specifications

Item

Contents

Criteria

(Adjustable from software/hardware)

1

Model

HCX-D298V1

5S-10S

Adjustable from software and hardware

2

Voltage

Charging voltage

Adjustable from software

3

Current

Maximal continuous charging current

80A (adjustable from hardware)

Maximal continuous discharging current

80A (adjustable from hardware)

Current consumption

≤200μA

 

4

Overcharge Protection

Over charge detection voltage

Adjustable from software

Over charge detection delay time

Adjustable from software

Over charge release voltage

Adjustable from software

5

Over Discharge Protection

Over discharge detection voltage

Adjustable from software

Over discharge detection delay time

Adjustable from software

Over discharge release voltage

Adjustable from software

6

Over Current Protection

Over current detection voltage

Adjustable from software

Over current detection current

Adjustable from software and hardware

Detection delay time

Adjustable from software

Release condition

Adjustable from software

7

Short Circuit Protection

Detection condition

Adjustable from software

Detection delay time

Adjustable from software

Release condition

Cut load, automatically recover

8

Balance

On @ ≥50mV±5mV

OFF @ ≤30mV±5mV

Balance voltage for single cell

Adjustable from software

Balance current for single cell

Adjustable from hardware

9

Resistance

Inner resistance

≤20mΩ

10

Temperature

Single cell temperature when discharge (over temp. protection) ≥65锟斤拷

Adjustable from software

Single cell temperature when discharge (low temp. protection) <-40锟斤拷

Adjustable from software

Single cell temperature when Charge (over temp. protection) ≥50锟斤拷

Adjustable from software

Single cell temperature when Charge (low temp. protection) <0锟斤拷

Adjustable from software

11

Fuel/Gas gauge

Display with LEDs (optional)

Thru one button to check capacity

Connection Diagram

HCX-D298V1 Electrical Block Diagram ( Port 2, charge and discharge at the same port)

 

How to connect BMS to PC/laptop to set up all parameters and the communications.

 

The commnuication conventor tool is called “EV2300/EV2400” which can be purchased from BesTech or from TI.

 

BMS comes with one USB Flash Drive, inside this USB Flash drive you can find the applications and other information as below:

       ·         BesTech Power BMS Software

 

·         Specification of the communication conventeor tool

 

·         BMS Specifications

 

·         Battery Connection diagram

 

·         BesTech Power Company profile

 

NOTE:   this LED port on BMS are for extra fuel/gas gauge optional LED display.

 

 

After installed our software to your PC/laptop

 

The PC-end-software (copyright belongs to TI) to Set and modifying all the logical parameters

 

 

 

 

PCB Layout and size

 

Connections Diagram:

1) Charge and Discharge at the same port connection:

 

2)  Charge and Discharge from different port connection:

 

Note:

Please connect B- of BMS to battery pack negative terminal then connect P+ to battery pack positive terminal, for the voltage detection cables, please connect from cell #1 till the last cell.

 

For more information, please email us at info@BesTechPower.com or sales@BesTechPower.com .

 

Thank you again for choosing BesTech Power.

 

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Tel:+86 - 769 82033052     Fax:+86 - 769 82033050 # 620   E-mail:info@BesTechPower.com
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