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48V20A Smart 2G LoT with GPS BMS for Swappable Battery System
  • 48V20A Smart 2G LoT with GPS BMS for Swappable Battery System
  • 48V20A Smart 2G LoT with GPS BMS for Swappable Battery System
  • 48V20A Smart 2G LoT with GPS BMS for Swappable Battery System
  • 48V20A Smart 2G LoT with GPS BMS for Swappable Battery System
48V20A Smart 2G LoT with GPS BMS for Swappable Battery System
【Brief】:

Model No: ZBF48V20ATC4-2G-GPS

Features

1)Support RS485 for study the battery information and modified the firmware

2)Support 4 way temperature sensor for monitoring the battery group

3)Coulomb SOC algorithm and online self learning function, modify the SOC accurately

4)Intelligent dynamic balancing

5)Support MOSFET failure detection function;

6)Support weak power switch on/off function ( external B+ input);

7)Support expansion of 2G/GPS module, bluetooth module and LCD display.

 

【Series】:LoT Series
 1.Introduction

This series BMS is mainly design for 48V with less than 30A and 20A discharging and charging current lithium battery group. In this scheme, a low power with high precision processor is used to match the high accurately sampling chip for dynamic intelligent management of battery pack. This series applied the unique SOC & SOH algorithm, which can elvaluate the higher accurate SOC for large capacity battery packed. At the same time, the intelligent dynamic equalization to ensure the lithium batteries work in a stable state and prolong the life of batteries.

The 2G & GPS module accomplish the data transaction among the battery packed and iclould server. Then the server keep track the working condition of the battery group on time. It can judge the SOH of battery pack and alarm the user once the battery in abnormal status. At the same time, the GPS function can track the location of battery group on time.  

 

2.Application Scope

48V (16S ) lithium battery packed

 

 

No

Item

Condition

Specification

1

 Input Voltage

Input Voltage B+ to B-

61V

2

 State of Charging(SOC)

Battery cell voltage accuracy

±20mV

Battery Packed voltage accuracy

±300mV

Current accuracy rate

±3%

SOC accuracy rate

±10%

3

 

 Overcharge(Single CELL)

Protection voltage

3850±30mV

Recovery voltage

3600±30mV

Protection delay time

1000±300mS

5

 

 Over discharge( Single CELL)

Protection voltage

23030mV

Recovery voltage

2500±30mV

Protection delay time

1000±300mS

7

 

Primary Over discharge current

Primary Over current

65A±3%A

Primary delay time

2S±300mS

8

Secondary Over discharge current

Secondary Over current

80A±3%A

Secondary delay time

500mS±300mS

9

Over charge current

Over current

20A±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)

-25

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

-20

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

 

 

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