|Charge Voltage:||17V||Charge Current:||20A|
|Over Charge Volt:||4.25±0.05||Over Charge Volt Protect Delay:||1|
|Over Charge Volt Release:||4.15±0.05||Constant Discharge Current:||40A|
|Peak Discharge Current:||120±20||Balance Current:||30±5|
3S 12V Battery Management System BMS,
12V 40A Battery Management System BMS,
3S 12V lithium bms system
Lithium-ion battery management system BMS NCM 3S 12V 40A
Before you placing the order.
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.
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.
Where to buy battery management system?
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.
Lithium-ion battery management system BMS NCM 3S 12V 40A Specification
|Datasheet for 3.7V Li-ion BMS( 10A-60A )|
|Discharge||Constant discharge current||10||15||20||30||40||50||60||A|
|Over-discharge current protection||30±5||50±5||60±10||100±20||120±20||150±30||180±30||A|
|Charge||Charge voltage||Series No. * 4.25||V|
|Charge current||5||8||10||15||20||25||30||A||Common port|
|Charge current||8A as default||A||Separate port|
|Over charge protection||Overcharge volt||4.25±0.05||V|
|Overcharge 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|
|Over discharge protection||Over discharge detect volt||2.7±0.1||V|
|Over discharge detect delay||1||S|
|Over discharge volt release||3.0±0.05||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||Disconnect load|
|Temperature protection||Temp protection||charge＜0℃, discharge＞70℃||℃||Need extra customization|
|Resistance||Main circuit resistor||≤20||mΩ|
|Sleepy current(when battery is over discharged )||≤20||uA|
|Working temp||Temp range||-20~70||℃|
|Storage temp||Temp range||-40~80||℃|
Pls kindly follow up the guide,in case the battery gets burnt by short circuit.
1, PIs do not insert balance wires into BMS before connecting batteries, must make sure connecting with batteries correct.
2, The sequence of connecting wires for BMS:
Notes: PIs ensure to use balancing wires from Daly!
1. From thin black balance wire to start, the 2nd wire(thin red wire) connect with the 1st battery's positive pole. Then connect each ell's positive pole in order until the last one B+;
After finished wiring:
Measure whether the B + and B-voltage and B + and P-voltage of the battery are equal, If yes, it means the BMS works normally and can be used. If not, please recheck according to the above wiring sequence.
The separate parts of smart 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.
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:How to choose the BMS that I need?
A:You need to make sure of following
1. battery type
2. charge current
3. discharge current
4. battery pack(series,parallel)
5. Peak discharge current
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.
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.;)
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
Contact Person: Leo Zeng