Battery Management System(BMS) with SMBus 5S18.5V Li-ion and Li-Polymer Battery

Battery Management System(BMS) with SMBus 5S18.5V Li-ion and Li-Polymer Battery

Model No.︰18.5V 5S Packs

Brand Name︰BEST

Country of Origin︰China

Unit Price︰-

Minimum Order︰1000 pcs

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Product Description

Features:
 Programmable BMS with SMBus , I2C, Communication protocol

1.Protection Circuit Board for 5S 18.5V  Li-ion and Li-Polymer battery pack;

2.PCB applies for 5 configuration  Li-ion and Li-Polymer battery pack;

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

4.With cell balance/equilibrium function;

5.Compatible with all the  Li-ion and Li-Polymer cells.

6.How balancing function works? after battery pack is fully charged. PCM will detect each cell's voltage and trim higher voltage down until other cells reach the same voltage level. Therefore, it helps cells have longer service life.

BEST SERIES 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: tech@sunbesthk.com

 Specifications:
 

Item

Contents

Criteria

(Adjustable from software/hardware)

1

Model

BEST-######

5S-15S

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

Adjustable from software

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

Adjustable from software

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

Adjustable from software

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

Adjustable from software

11

Fuel/Gas gauge

Display with LEDs (optional)

Thru one button to check capacity

C

Price Terms︰ FOB SHENZHEN

Payment Terms︰ TT/PAYPAL/WEST UNION/ESCROW

Packing︰ EXPORT CARTON BOX

Lead Time︰ 7 BUSINESS DAYS AFTER RECEIVE YOUR PAYMENT

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