| Sign In | Join Free | My futurenowinc.com |
|
| Sign In | Join Free | My futurenowinc.com |
|
| Categories | Lithium Battery BMS |
|---|---|
| Brand Name: | Enerkey |
| Model Number: | EK-BM3R4S40A |
| Certification: | ISO9001/CE/ROHS |
| Place of Origin: | Shenzhen, China |
| MOQ: | 10pieces |
| Price: | $4.5-$5 |
| Payment Terms: | L/C, D/A, D/P, T/T, Western Union, MoneyGram |
| Supply Ability: | 1000000pcs per day |
| Delivery Time: | 3-5days |
| Packaging Details: | Strong paper box +EVA Foam |
| Product Name: | 3S 40A Lithium Battery BMS |
| Copper Thickness: | 2oz |
| Application: | RV energy storage |
| Board Thickness: | 1.6mm |
| Battery Type: | Li-ion/Lifepo4/Lto/SIB |
| Allowable Operating Voltage Range: | 0-30V |
| Rated Discharge Currenturrent: | 40A |
| Peak Starting Current: | 85A |
| Used For: | Lithium Battery Protection Board |
| Keywords: | 3S BMS |
| Base Material: | FR-4 |
| Surface Finishing: | Lead-free spray tin |
| Product Size: | L36xW36xT5mm |
| Weight with Package: | 0.08kg |
| Company Info. |
| Shenzhen Juyi Science And Trade Co., Ltd. |
| Verified Supplier |
| View Contact Details |
| Product List |
Enerkey Lithium Battery Charger Protection Module 3S 40A 12.6V SIB/Lto/Li-ion/Lifepo4 BMS for Car Start
Product Overview
The 3S4S40A lithium battery protection board is designed for 3-cell (3S) and 4-cell (4S) lithium battery packs, featuring a 40A high current carrying capacity. It integrates overcharge, over-discharge, overcurrent, and short-circuit protection functions to ensure safe and stable battery operation. Suitable for power tools, energy storage systems, electric bicycles, and other applications, it provides an efficient and reliable battery management solution.
Core Features
High Current Carrying Capacity: Supports 40A continuous discharge current, meeting the needs of high-power devices.
Multiple Protection Mechanisms:
Overcharge Protection: Prevents battery voltage from exceeding the
safe threshold.
Over-discharge Protection: Prevents damage from deep discharge.
Overcurrent Protection: Limits abnormal current, protecting circuit
safety.
Short-circuit Protection: Quickly disconnects the circuit,
preventing equipment damage.
Heat Dissipation Design: Equipped with a heat sink to effectively
reduce operating temperature and improve stability.
Temperature Control Monitoring: Integrated temperature sensor to
monitor battery temperature in real time, preventing overheating
risks.
| Item type | Parameters | |||||||||
| 1 | Parameter Overview | Product Model | EK-BM3R4S40A | |||||||
| Product Size(mm) | L36*W36*T5 | |||||||||
| Product Weight(kg) | 0.08 | |||||||||
| Product Material | FR-4 / Lead-free spray tin | |||||||||
| Applicable battery type | Lifepo4 | Li-ion | Lto | SIB | ||||||
| Applicable battery string | 3S / 4S | 3S / 4S | 3S / 4S | 3S / 4S | ||||||
| Rated discharge current | 40A | 40A | 40A | 40A | ||||||
| Peak starting current | 85A | 85A | 85A | 85A | ||||||
| Item type | Trigger (time) | Trigger (time) | Trigger (time) | Trigger (time) | Trigger (time) | Trigger (time) | Trigger (time) | Trigger (time) | ||
| 2 | Charging protection | Overvoltage protection voltage value | 3.65V/1S | 3.50V/1S | 4.25V/1S | 4.05V/1S | 2.85V/1S | 2.75V/1S | 3.95V/1S | 3.80V/1S |
| Overcurrent value | 40A/2S, disconnect charger to recover | |||||||||
| Low temperature value | Charge over-temperature protection 60℃/2S / Release 55℃/2S | |||||||||
| Overtemperature value | Charging low temperature protection -5℃/2S / Release 0℃/2S | |||||||||
| 3 | Discharge protection | Undervoltage protection voltage value | 2.30V/1S | 2.70V/1S | 2.75V/1S | 3.0V/1S | 1.70V/1S | 1.80V/1S | 1.50V/1S | 2.00V/1S |
| ①Overcurrent protection value | 45A/2S, disconnect load or activate charging | |||||||||
| ②Overcurrent protection value | 85A/0.5S, disconnect load or activate charging | |||||||||
| Short circuit protection value | 150A/64uS, disconnect load or charge activated | |||||||||
| Low temperature value | Discharge over-temperature protection 65℃/2S, release 60℃/2S | |||||||||
| Overtemperature value | Discharge low temperature protection -20℃/2S, release -10℃/2S | |||||||||
| 4 | Others | Standby current consumption | 25uA | |||||||
| Motherboard lock voltage | / | |||||||||
Wiring precautions:
1. Installing the protective board requires a certain amount of
technical electronic knowledge.
2. When wiring, first connect the B- wire at the soldering pad
position to the total negative terminal of the battery (the B- wire
should be soldered to a short and thick wire) and solder the wired
terminal to the battery pack first, and then insert the protective
plate.
3. The connection between the battery terminal B- and the
protection board terminal B- should be short and thick, otherwise
it will cause the protection board to charge and discharge in
advance and malfunction.
4. You need to use thick wires when wiring P+/P-. Wires that are too thin and too long will burn the board!
Q1. Why did we choose you?
* We can provide you with efficient after-sales service, with more than 10 years of strong technical support.
* Products have passed FCC, CE, ROHS and other international standards certification.
* We can provide you with factory price, Welcome you to visit our factory and production process.
Q2. What is your product range (type)?
*We mainly do battery management systems in the fields of power batteries, energy storage batteries and consumer batteries.
*Mainly used for LFP, Li-ino and LTO batteries.
Q3: How do I know which kind of material & type my battery is ?
*Please look the battery body, If the normal voltage of your battery shows 3.2V, The battery is LiFePo4.
*If the normal voltage of your battery shows 3.6V or 3.7V, the battery is Li-ion or Lto battery.
Q4. Do you have minimum order requirements?
Can it be customized? What is the lead time for samples and batches?
*Our minimum order quantity is 1 piece, ODM customization is available.
* 1~3 days delivery of existing samples, 3~10 days delivery of customized samples.
Q5: What if i can't use it?
*Regular products have instructional videos, We can also support online video call guidance from engineers.
Q6. What are your terms of payment?
*We accept wire transfer and cash payment, all negotiable. Payment method :visa, mastercard, T/T, PayPal, APPLE_PAY, GOOGLE_PAY, GC_REAL_TIME_BANK_TRANSFER, RMB
Q7. How do you guarantee the quality?
* All our products are subjected to professional laboratory 100% testing, as well as repeated aging tests.
* Obtained FCC, CE, ROHS and other international standard certification.
* Provide 3 years after-sales warranty service. Free spare units for replace in 3 years.
Q8. How to choose a BMS suitable for our battery?
*Depending on the voltage and current that matches your battery, you can consult our customer service and we will provide it for you equipped with the most suitable battery management system.
Q9. How can i contact you?
*We have 7x24 hours online service, Please leave us a message online.
*You can also contact us by Email, WhatsApp, WeChat, etc(see below). We are so glad to work with you.
|
18650 bms with Balancer for lithium battery bms 3S 50a lithium battery pack case 12v bms for Home appliances
25.2V 6S 50A Lithium Battery Protection BMS Board Battery Management System BMS
25.2V 29.4V Lithium Battery BMS Protection Board Smart BMS 6S 7S 30A For RV
Rechargeable Lithium Ion Battery Pack With BMS 9S 40A 37V Li-Ion Cell 18650 BMS
18650 / 21700 Battery BMS 10S 40A 42V Lifepo4 Lithium Ion Battery For RV Car
Enerkey 2S 20A 7.4V 8.4V 18650 Lithium Battery Protection Board BMS 2S For Battery Pack
Enerkey 2S 20A Hardware BMS 7.4V 8.4V 18650 Lithium Li-ion Battery BMS Charger Protection Board
BMS 3S 50A 12.6V lithium battery bms circuit board smart bms for lithium batteries pack repair tools
Electronic Car Lithium Battery BMS 3S 4S 50A Board Li Ion Battery Protection Board
350w 500w 750w 1000w 1500w Li Ion Battery BMS 8S 40A Smart Bms For Electric Scooter
