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Standard series 48V/RS485 BMS
  • Standard series 48V/RS485 BMS
Standard series 48V/RS485 BMS
【Brief】:BMS
【Series】:48V RS485 series

Introduction

 

This BMS is mainly designed for intelligent management of small series but higher rate discharging. This series adopt the unique SOC & SOH algorithm, which provide the precision figure about the battery pack. The strong expansibility and various communication interface allow the user monitoring the battery state through difference medium.

At the same time, the intelligent dynamic balancing function to ensure that the lithium battery group work stably and prolong the life of battery group.

 

Application Scope:

 

7S-16S lithium battery packed

Car Storage System/ Solar LED Street Light/ AGV (Automated Guided Vehicle)

 

Character

(1)Safety

(2)Accurate figure

(3)Extendable Life

(4)Strong Expansibility

 

 

  

No

Item

Condition

Specification

1

 Input Voltage

Input Voltage B+ to B-

29.5V - 68V

2

 State of Charging(SOC)

Battery cell voltage accuracy

±30mV

Battery Packed voltage accuracy

±300mV

Current accuracy rate

±3%

SOC accuracy rate

±10%

3

 

 Overcharge(Single CELL)

Protection voltage

42530mV

Recovery voltage

4100±30mV

Protection delay time

1000±300mS

5

 

 Over discharge( Single CELL)

Protection voltage

28030mV

Recovery voltage

3300±30mV

Protection delay time

1000±300mS

7

 

Primary Over discharge current

Primary Over current

60A±3%A

Primary delay time

5S±300mS

8

Secondary Over discharge current

Secondary Over current

90A±3%A

Secondary delay time

1S±300mS

9

Over charge current

Over current

60A±3%A

Delay time

5S±300mS

10

Communication feedback delay time

Delay time before sleeping mode

≤100mS

Delay time under sleeping mode ( At least two command issued, the first is activated the communication and the second is data responese)

≤100mS

11

 

 Short circuit protection delay time

Short circuit protection delay time

200~600uS

Recovery Conditions

Shut down the loading and charging again

12

 

 Temperature protection

High Temperature Protection in Discharging   (±3℃)  (Cell temperature)

65

High Temperature Recovery in Discharging       (±3℃)  (Cell temperature)

60

Low Temperature Protection in Discharging   (±3℃)  (Cell temperature)

-20

Low Temperature Recovery in Discharging     (±3℃)  (Cell temperature)

-15

High Temperature Protection in Charging      (±3℃)  (Cell temperature)

55

High Temperature Recovery in Charging       (±3℃)   (Cell temperature)

50

Low Temperature Protection in Charging       (±3℃)  (Cell temperature)

-5℃

Low Temperature Recovery in Charging         (±3℃)   (Cell temperature)

0℃

High Temperature Protection in Charging and Discharging     (±3℃)  (Mosfet temperature)

85

High Temperature Recovery in Charging and Discharging     (±3℃)  (Mosfet temperature)

75

 

 

Note: The basic protection parameter can be modified by PC software!      ( Please modified it under the guidance of professional engineer! )

 

No

Item

Condition

Specification

13

Communication Interface

RS485

Support

14

Communication Interface

URAT

Support

14

weak power switch

External B+ input

Control discharge mosfet on or off

Support    (Default setting is without)

15

Battery Temperature Monitoring Sensor

For monitoring the temperature of battery group and BMS mosfet

Support

16

Cell Voltage Balancing

Intelligent Passive consumption equilibrium

Support

17

Expansion function

1)2G / GPS module

2)Bluetooth module

3) PC software ( USB converting Box )

3)LCD Display

Support (Option)

18

Short Circuit Protection

Support the battery group within 30AH  (Relay protection for the capacity more than 30AH)

Support

19

Self power consumption

Working Mode ≤35mA

20.8mA

Sleeping mode≤300uA

140uA

Hibernate mode≤20uA

8uA

20

0V charger

Allowed 0V change

Not support

21

Recommend working conditions

Max continuous discharge current

50A

Max continuous charge current

50A

 cell capacity

Software matching

22

Appearance

1) Nothing part deflection

2) The status of solder is all right

3) PCM will not crook

4) Compliance with the appearance standard of BMS manufacturer

23

 Reliability test

ESD test :connect 6KV Air 10KV

 

 

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