4s 7A LiFePO4 BMS for Ebike

Modello numero.
LWS-4S7A-030V1(4S)

temperatura di esercizio
-20~+70ºC

Tempi di consegna
7-15 Days After Payment

Campione
Available

Utilizzo
Lithium Ion/LiFePO4 Battery Packs, eccetera

Certificato
ISO9001/ISO14001/CE/RoHS

Applicazione
Solar, Toy′s Battery Pack, Power Bank, Power Tool

Testing Service
100%E-Testing

Pacchetto di trasporto
PP Bag, Cartone

Specifica
L50*W20*T5mm

Marchio
LWS

Origine
Cina

Codice HS
8536300000

Capacità produttiva
100000PZ/Mese

Descrizione

1. Descrizione del prodotto

About your products,just tell us the relative voltage/ cells/ current A or equipment etc,
We will help to recommend the most suitable products for you.

Product Advantages:

  • Fornire OEM/ODM e servizio personalizzato
  • Alta qualità con funzione di bilanciamento intelligente
  • Prezzo all'ingrosso
  • Certificati ISO9001/ISO14001/CE/ROHS
  • Consegna veloce
  • Prodotto verde
  • Un anno di garanzia
  • Eccellenti prestazioni di sicurezza
  • Test di cortocircuito superato
  • Test di sovraccarico superato
  • Test di scarica eccessiva superato
  • Importato originale :IC dal Giappone,MOS dagli Stati Uniti,Componenti di Sumsang.
  • 1.2m test di caduta superato
  • 100% test
  • Supporta l'ODM & Servizi dell'OEM

About the battery BMS/PCB/PCM

Funzione: 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.
If you feel that this product does not meet your requirements, you can consult our staff, you can recommend or customize the lithium battery protection board you want.
  • Description of application effect
(Sistema di gestione della batteria) BMS can extend battery life and make battery work safely.

This model can be used for solar, LED lights, Emergency lights, Digital Equipment, etc.electric scooter,e-bike,tourisr
sightseeing vehicle,electric tricycle,low speed ev,emergrncy ups,solar street light,RV&home energy storage……
4s 7A LiFePO4 BMS for Ebike

About your products,just tell us the relative voltage/cells/current A or equipment etc,we will help to recommend the most suitable products for you.

4S 7A Lifepo4 battery packs bms printed circuit boards
4s 7A LiFePO4 BMS for Ebike
Mode LWS-4S7A-030V1 (4S)
Dimensioni PCM L50*W20*T5 mm
battery series 4S Available
working current 7A Available
Applicazione LED lights, Emergency lights, Digital Equipment, eccetera
Campione disponibile
4s 7A LiFePO4 BMS for Ebike
Wiring:
1. First connect the B- of the BMS to the total negative pole of the battery pack;

2.The cable starts from the thin black one connecting B-, the second red wire connects the positive pole of the first string of batteries, and the next string is connected in turn to positive pole of the battery,B-,B1,B2……B4; then insert the cable into the BMS; (The maximum number of strings is 4 strings, the example picture is 4 strings) (Please weld the wires in order and avoid pseudo solder joints.)
3. Collegare il caricabatterie C-/Carico P- con BMS C-/P- (Utilizzare cavi di dimensioni maggiori)
4. Collegare il polo positivo: Caricabatterie C+/Carico P+ con pacco batteria B+ (Utilizzare cavi di dimensioni maggiori) .

4s 7A LiFePO4 BMS for Ebike

Shenzhen Batteria agli ioni di litio Bodyguard Technology Co.,LTD
PCM Specifications For 12.8V (4S) LiFePO4 Battery Packs
Modello: LWS-4S7A-030V1 (4S)
NO. Articolo di prova Criterio
1 Voltaggio Tensione di carica DC: 14.4VCC/CV
Singola tensione bilanciata 3.6V±0.025V
2 Attuale Bilanciamento della corrente per singola cella 36±10mA
Consumo corrente ≤20uA
Corrente di carica continua massima 5UN
Corrente di scarica continua massima 5UN
3 Protezione da sovraccarico Tensione di rilevamento del sovraccarico 3.90±0,025 V
Tempo di ritardo per il rilevamento della carica eccessiva 0.5S-1.5S
Sovraccarico di tensione di rilascio per singola cella 3.80±0.05V
4 Protezione da scarica eccessiva Tensione di rilevamento di scarica eccessiva per cella singola 2.30±0,08 V
Tempo di ritardo per il rilevamento della scarica eccessiva 0.5S-1.5S
Tensione di rilascio eccessiva per scarica per singola cella 2.70±0.10V
5 Protezione da sovracorrente Sovratensione di rilevamento corrente 200±25mv
Sopra corrente di rilevamento corrente 10±3A
Tempo di ritardo del rilevamento 5-20mS
Release condition Cut load
6 Short protection Detection condition Exterior short circuit
Tempo di ritardo del rilevamento 200-500noi
Release condition Cut Load
7 Resistance Protection circuitry(MOSFET) ≤50mΩ
8 Temperatura Temperatura di funzionamento -20~+60ºC
Storge temperature -20~+85ºC
Temperature sensor 75ºC

4s 7A LiFePO4 BMS for Ebike4s 7A LiFePO4 BMS for Ebike4s 7A LiFePO4 BMS for Ebike4s 7A LiFePO4 BMS for Ebike4s 7A LiFePO4 BMS for Ebike
4s 7A LiFePO4 BMS for Ebike

3.FAQ
Q: How do I judge what material my battery is ?
UN: Please take a look at the battery body.if the normal voltage of your battery shows as 3.2V,the battery will be LiFePo4.If the normal voltage of your battery shows as 3.6V or 3.7V, the battery will be Li-ion or Li-polymer battery. you can also ask battery manufacturer the material of battery.

Q: Can I use this protection circuit board for my battery?
UN: Can use this protection circuit board, or not?
Ci sono 2 questions:
How much cells in series is your battery pack?
The protection circuit board you need to buy must be same cells in series as your battery pack.

Q: What material is your battery?
UN:Only the LiFePo4 battery has different electric parameter from other battery, so if you need buy the protection circuit board for LiFePo4 battery , Please let us know firstly.

Q: Do we need cell balance or not?
UN: The function of balance : Since battery is made of many pcs of cells in parallel and in series, the cells can’t be the same as no two people in the world is the same , so can only put in group with similar performance is not without balance function

Q: Do you have Minimum Order Requirement (MOQ)?
UN: NO, We don’t have MOQ, Different customer have different requirement ,We can provide various capacity and size as per your requirements,Also ODM / OEM is welcome.

About your products, just tell us the relative voltage/ cells/ current A or equipment etc,we will help to recommend the most suitable products for you.