Shenzhen Juyi Science And Trade Co., Ltd.
Shenzhen Juyi Science And Trade Co., Ltd.
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Enerkey Hardware BMS 200A 5S 6S 7S 12V 24V Battery Protection Board With Passive Balance and NTC
Types of lithium battery protection boards:
1. From the overcharge and over-discharge functions of lithium batteries
If we divide them from the performance of lithium battery charging and discharging, the protection boards can be roughly divided into two types. One is a single function, that is, a unidirectional overcharge protection for the battery, or a unidirectional over-discharge protection for the battery. The other is a bidirectional protection, which has both overcharge and over-discharge functions. At present, the application of bidirectional protection boards is wider than that of single protection boards.
2. From the combination of lithium battery packs
The different series and parallel connection methods of lithium battery packs also directly lead to different lithium battery protection boards. Battery packs can be roughly divided into two categories: series and parallel. The series battery pack is to increase the overall voltage, and the parallel battery pack is to increase the overall capacity. Therefore, the lithium battery protection board is also divided into two types according to the two connection methods of the battery pack.
3. From the perspective of customer requirements
Lithium battery protection boards are used in various fields, but the voltage and current requirements for lithium battery packs in each field are different. It is precisely because of the different parameter requirements that the lithium battery protection board needs to change the internal components to change the specific parameters of the protection board.
4. From the perspective of board quality
The boards of lithium battery protection boards are divided into hard boards, which are commonly known as hard boards. This type of board is currently the most commonly used; the opposite is soft boards; there are also single-layer boards; corresponding multi-layer boards; and double-layer boards; these are the five most basic boards. If these boards are combined in different ways, they will be divided into more types.
| Item type | Parameters | |||||||||
| 1 | Parameter Overview | Product Model | EK-BM5R7S200A | EK-BM5R7S200A | EK-BM5R7S200A | EK-BM5R7S200A | ||||
| Product Size(mm) | L120*W68*T15 | L120*W68*T15 | L120*W68*T15 | L120*W68*T15 | ||||||
| Product Weight(kg) | 0.12 | 0.12 | 0.12 | 0.12 | ||||||
| Product Material | FR-4 / Lead-free spray tin | FR-4 / Lead-free spray tin | FR-4 / Lead-free spray tin | FR-4 / Lead-free spray tin | ||||||
| Applicable battery type | Lifepo4 | Li-ion | Lto | SIB | ||||||
| Applicable battery string number | 5S / 6S / 7S | 5S / 6S / 7S | 5S / 6S / 7S | 5S / 6S / 7S | ||||||
| Rated discharge current | 200A | 200A | 200A | 200A | ||||||
| Peak starting current | 300A | 300A | 300A | 300A | ||||||
| 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 | ||||||
| Balanced phase difference voltage value | 30Mv/1s | / | ||||||||
| Balanced voltage value | 3.45V | / | ||||||||
| Overcurrent value | 60A/2s | / | ||||||||
| ①Low temperature value | -5℃/2s | 0℃/2s | ||||||||
| ①Overtemperature value | 75℃/2s | 65℃/2s | ||||||||
| ②Low temperature value | -5℃/2s | 0℃/2s | ||||||||
| ②Overtemperature value | 55℃/2s | 50℃/2s | ||||||||
| 3 | Discharge protection | Undervoltage protection voltage value | 2.3V/0.5s | 2.7V/0.5s | ||||||
| ①Overcurrent protection value | 120A/2s | / | ||||||||
| ②Overcurrent protection value | 160A/250ms | / | ||||||||
| Short circuit protection value | 500A/64us | / | ||||||||
| ①Low temperature value | -20℃/2s | -10℃/2s | ||||||||
| ①Overtemperature value | 80℃/2s | 55℃/2s | ||||||||
| ②Low temperature value | -20℃/2s | -10℃/2s | ||||||||
| ②Overtemperature value | 65℃/2s | 60℃/2s | ||||||||
| 4 | Others | Standby current consumption | 25mA/180s | / | ||||||
| Motherboard lock voltage | 0.8V/30s | / | ||||||||
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.