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Contact name:Leo Zeng
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bluetooth smart BMS For NCM 3.7V lithium ion battery 7S 24V 80A
BMS 7S 24V 80A Specification
| Datasheet for 3.7V Rated Li-ion BMS( 80A-250A ) | |||||||||
| Content | Spec | Unit | Remark | ||||||
| 80A | 100A | 120A | 150A | 200A | 250A | A | |||
| Discharge | Constant discharge current | 80 | 100 | 120 | 150 | 200 | 250 | A | |
| Over-discharge current protection | 250±50 | 300±50 | 400±100 | 500±100 | 600±100 | 600±100 | A | ||
| Charge | Charge voltage | Series No. * 4.25 | V | ||||||
| Charge current | 40 | 50 | 60 | 75 | 100 | 125 | A | Common port | |
| Charge current | 50A as default | A | Separate port | ||||||
| Over charge protection | over charge volt | 4.25±0.05 | V | ||||||
| over charge volt protect delay | 1 | S | |||||||
| Over charge volt release | 4.15±0.05 | V | |||||||
| Power balancing | Power balance volt | 4.18 | V | ||||||
| balance release volt | 4.18 | V | |||||||
| balance current | 35±5 | mA | |||||||
| Over discharge protection | Over discharge detect volt | 2.7±0.1 | V | ||||||
| Over discharge detect delay | 1 | S | |||||||
| Over discharge volt release | 3.0±0.1 | V | |||||||
| Over current protection | Over current detect delay | 1 | MS | ||||||
| Over current protect release | Off load | ||||||||
| Short circuit protection | Short circuit protection | External load short circuit | |||||||
| Short circuit detect delay | 250 | uS | |||||||
| Short circuit detect release | Off load | ||||||||
| Temperature protection | Temp protection | charge＜0℃, discahrge＞70℃ | ℃ | Can be customized | |||||
| resistance | Main circuit resistor | ≤20 | mΩ | ||||||
| Self-consumption | Working current | ≤100 | uA | ||||||
| Sleepy current(when battery is over discharged ) | ≤20 | uA | |||||||
| Working temp | Temp range | -40~80 | ℃ | ||||||
| Storage temp | Temp range | -40~80 | ℃ | ||||||
Why do we need battery management system?
Battery Management Systems are the brains/CPU behind battery packs. They manage the output, charging,discharging and provide notifications on the status of thebattery pack. They also protect the batteries from damage.
Lithium ion is a kind of active metal,compared to lead acid battery,lithium ion is more active,which casuses over charge,over discharge problem.It needs a protection.BMS is the one that protect your battery from be damaged.
Now you are replacing the lead acid battery with lithium battery,it's worthy spending little money on protection of your batteries,which can save much money.
What is battery management system BMS?
Deligreen BMS is defined as an electronic system that manages a rechargeable battery(lithium phosphate,NCM battery,single cell or battery pack) by monitoring its state, calculating secondary data, reporting that data, protecting the battery, controlling its environment, and/or balancing it.This is a very worthy of money to make your battery packs a BMS.
Why deligreen BMS?
Deligreen was founded in 2010 and we have sold BMS for more than 10 years.BMS is one of our best sellers.The customers from more than 90 countries in the world have been using Deligreen's BMS,our BMSes are protecting tremendous amount of batteries in the world.It's worthy the every dollar/cent you spend on our BMS.;)
Where to buy battery management system?
Deligreen!!
Pls go to the bottom of this page,and send us your requirement,we will contact you by email or whatsapp to recommend the BMS you need.We can ship to you freight charge included.
How does battery management system work?
The battery management system monitors battery conditions and takes actions to extend battery life. If excessive battery drain is detected, the system temporarily disables some electrical systems to protect the battery.
How to choose the BMS that I need?
You need to make sure of following
1. battery type:lifepo4,lto,NCM battery.The different battery with different voltage and capacity,3.2V lifepo4,3.7V NCM,2.3V lto
2. charge current:Range 5A-250A
3. discharge current:Range 10A-500A
4. battery pack(series,parallel):3S-32S,customized optional
5. Peak discharge current:The highest discharge can a BMS stand
Where does the BMS use?
If you have batteries used in these applications,you must use a BMS.
What smart/soft function does it have?
There are severl options for the smart BMS,which you can have different function from it.Deligreen's smart BMS has CAN/UART/FAN,and LCD control.It denpends on what protocal of your battery is.We will supply the relevant cables for the connection,UART,USB.CAN.
Every smart BMS has a bluetooth module along with the shippment,as well the USB-UART cable.
The other parts to be given according to the type you place.
Communications agreements
physical layer
| 1. physical interface | CAN |
| 2. baud rate | 250K |
Communications Format
Basic timing
All messages are sent by the host, all slave after receiving the message to determine whether the slave address match, only in the case of slave address match is allowed to return data to the host.
Address allocation
| Module | Address |
| BMS Master | 0x01 |
| APP Bluetooth APP | 0x80 |
| GPRS | 0x20 |
| Upper | 0x40 |
CAN Communication formats
upper computer
| CAN ID 4byte | Data |
Priority + data ID+BMS address + PC address (0x18100180) | 8 bytes |
BMS responds to host commands
| CAN ID 4byte | Data |
Priority + data ID+ PC address +BMS address (0x18108001) | 8 bytes |
Communications content information
Data Message | ID Data ID Message ID | UPPER - BMS | Remark |
| SOCSOC of Total Voltage Current | 0x90 | Send | Byte0~Byte7:Reserved |
| Return | Byte0~byte1:pressure (0.1 V) Byte2~byte3: acquisition (0.1 V) Byte4~byte5:current (Offset,0.1A 30000) Byte6-Byte7:SOC(0.1%) | ||
Maximum Minimum Voltage of Monomer | 0x91 | Send | Byte0~Byte7:Reserved |
| Return | Byte0~byte1:maximum monomer voltage (mV) Byte2: Maximum Unit Voltage cell No. Byte3~byte4:minimum monomer voltage (mV) Byte5:Minimum Unit Voltage cell No. | ||
Maximum minimum temperature of monomer | 0x92 | Send | Byte0~Byte7:Reserved |
| Return | Byte0: maximum monomer temperature (40 Offset,°C) Byte1: Maximum monomer temperature cell No. Byte2:minimum monomer temperature (40 Offset,°C) Byte3:Minimum Monomer Temperature cell No. | ||
Charge/discharge, MOS status | 0x93 | Send | Byte0~Byte7:Reserved |
| Return | Byte0:charge/discharge status (0 stationary ,1 charged ,2 discharged) Byte1:charging MOS tube status Byte2:discharge MOS tube state Byte3:BMS life(0~255 cycles) Byte4~Byte7: residual capacity (mAH) | ||
Status Information 1 | 0x94 | Send | Byte0~Byte7:Reserved |
| Return | Byte0: battery string Byte1:temperature Byte2:charger status (0 disconnected ,1 connected) Byte3:load status (0 disconnected ,1 access)
Byte4: Bit 0: DI1 state Bit 1: DI2 state Bit 2: DI3 state Bit 3: DI4 state Bit 4: DO1 state Bit 5: DO2 state Bit 6: DO3 state Bit 7: DO4 state
Byte 5~Byte6 :charge/discharge cycles Byte7:Reserved |
This is how a BMS works for 13S48V battery packs.
Pls contact us telling your batteries spec,and recommend you the most proper products.
FAQ:
Q:Which current of the PCB should i choose?
A:Take 13S 48V pack as an example: Which PCB you should choose depends on the power of your motor or the current limitation of your controller. Below 350W ,you can choose 16A.Below 500W, you can choose 18A, Below 800W, you can choose 35A,Below 1KW, you can choose 60A. Above 1200W, the same. If you are not sure, please contact us freely.
Q:What battery types do your BMS work with?
A:Our BMS can work for lithium phospate battery(Lifepo4)and NCM battery,lithium ion battery,ple let us know what your battery type before placing order.
Q:What BMS range can you supply?
A:Deligreen is a professional BMS supllier with abundant BMS range.Series from 3S-32S,Current from 10A-500A,if you need more series,pls contact us.
Q:Can I watch the battery status from my mobile phone?
A:Yes,this is waht a samrt BMS do,you can watch the status of your batteries in your APP throush bluetooth connected between phone and the BMS.
About US
Changsha Deligreen Power Co.LTD,founded in 2010,is a "Green Energy Solution Service Provider".
Newest technology,new idea,hard-working and honest people.
Focus on lithium rechargeable battery,BMS,Balancer,charger and relative products.
BMS is one of best sellers,we've been receiving thousands of good comment from our clients because of its good quality and function
If you have anything dissatisfied.Please email the manager:info@deligreenpower.com
