| Dielectric: | FR-4 |
|---|---|
| Battery Pack: | 7s |
| Copper Thickness: | 1oz/ 1oz |
| Min. Hole Size: | 0.8 mm |
| Max.Continuous Discharging Current: | 20A |
| Min. Line Spacing: | 10/10mil |
| Samples: |
|---|
Suppliers with verified business licenses
Audited Supplier Customized PCM with CAN/RS485 battery protection board Balance lithium smart 48V Lifepo4 BMS
Product name: Protection Circuit Module (PCM)
Model No: PCM-29.4V7S battery PCB
For 7S 18650/18500/14500/26650/32650/21700/32700 Lithium-ion Battery Packs
Any functions can be choose as follow:
1) Power off detection (It can be locked when removed the PCM from battery pack, to avoid safety accidents caused by users unauthorized disassembly or replacement)
2) MOS statistics of overtemperature protection times (it can lock up after N times overtemperature protection to avoid safety accidents caused by user overload)
3) Power on timing (it can lock up after N years running, it means we can design a lock time depends on the batteries service life, then the user can't replace the batteries by themself)
4) Counting discharge times (It can design lock up after N times charge and discharge, then if can't be work end of batteries service life )
5) Add buzzer (it can make a sound to remind the user to charge when the battery is stored for a long time, the voltage is too low due to self discharge to protect batteries)
6) Unique ID (a unique ID number can be added to each board for product tracing)
7) UART communication (communication with PC can be realized, to setting and viewing the data of the above items 1-6 before delivery)
8) Bl ue too th function ,then you can check the batteries status by your phone
| 7S battery protection board data sheet | |||
|
No. |
PARAMETER |
Criterion |
|
|
1 |
Voltage |
Charging voltage |
DC:29.4V CC/CV |
|
Balance voltage for single cell |
4.125±0.025V |
||
|
2 |
Current |
Balance current for single cell |
80±5mA |
|
Current consumption |
≤25μA |
||
|
Max. continuous charging current |
2 - 7A |
||
|
Max. continuous Discharging current |
20A |
||
|
3 |
Short protection |
Detection condition |
Exterior short circuit |
|
Detection delay time |
160~240uS |
||
|
Release condition |
Cut load,Automatic recovery |
||
|
4 |
Resistance |
Protection circuitry(MOSFET) |
≤1.67mΩ |
|
5 |
Temperature |
Operating Temperature Range |
-25~+70 |
|
Storage Temperature Range |
-40~+125 |
||
|
Charge Over Temperature |
48.5±5 |
||
|
Charge Under Temperature |
-5±5 |
||
|
Discharge Over Temperature |
70±5 |
||
|
Discharge Under Temperature |
-25±5 |
||
Feature:
1.True lithum battery pack BMS factory
2.Supply OEM/ODM and custom service
3.High quality with smart balance function
4.Wholesale price
5.Environment
6.Fast delivery
Function:
Detect and protect the battery from over-charge ,over-dicharge, over-current short-circuit
,temperature detecting protection and auotmatically voltage balance function .
Build with high end electronic components (High End IC and MOSFET ) ,simple structure
design will let it have more stable quality working performance , Flexible application ( it can be used for less
series battery by leaving some connection pins at empty status ),full set of protection measures let it works well
without any infulence from external unexpected accidents.
About your products,just tell us the relative voltage/ cells/ current A or equipment etc,
we will help to recomment the most suitable products for you. or we design for you!
⇒Shipment
All the items with tracking numbers and will be dispatched 7-15 business days by express after the payment is received. Once the payment above our rule, we will send the parcel by suitable shipping way, like UPS, DHL, FEDEX or special line, AIR or SEA etc.
⇒Returns
(1)Defect: We will fully refund or send you a new replacement after we checking.
(2)Dissatisfaction: Please contact within 7 days, we will fully refund after get your returned goods.
(3)Missing parts/Q'ty: Please contact us in time, we will redeliver,or a partial refund issued.
⇒Feedback
1. Any questions, please contact us via message or email us.We will reply your message within 24 hours except holiday. If you do not receive our reply within 24 hours, please post a message again because sometimes our message system may block some emails.
2. If you are satisfied with our service, please kindly leave us a positive feedback and give us the Detailed Seller Rating with all "5 stars" in very area
3. Our aim is to provide Top Level Customer Service, your recognition will encourage us greatly and serve you better. We strive to keep all our customers satisfy.
4. We greatly appreciate your POSITIVE feedback. Please do NOT leave negative feedback without asking for help.Thanks!
Suppliers with verified business licenses
Audited Supplier 
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