Power is supplied to the module from an external power source
within a voltage range of 7.4 to 8.4 V. While the module is not a
charger in itself, it can be used in conjunction with a step-up
voltage converter with a current limiter for charging applications.
This flexibility allows for seamless integration into various
charging setups, providing users with a versatile and adaptable
solution for their battery management needs.
The compact size of the module is specifically designed to
accommodate a two-cell battery pack, making it an ideal choice for
applications where space is at a premium. It’s simple and
convenient circuit design facilitates easy connections, reducing
installation time and complexity. The inclusion of over-charge and
over-discharge protection further enhances the safety and
reliability of the battery management system, ensuring peace of
mind for users. It is important to note that product images are
shown for illustrative purposes only and may differ from the actual
product. Customers are advised to refer to the product
specifications and documentation for accurate information regarding
the module’s features and capabilities.
Technical Parameters
Enerkey Lithium Battery Protection Board (BMS) 2S 20A 30A 7.4V 8.4V For Photovoltaic Solar Panels and Industrial Power & Home Energy
Storage System and Electric Car and Scooter and Motorcycle
|
| Product model | EK-B2S20AS | EK-B2S20AM | EK-B2S30AM |
Suitable battery strings | | 2S | |
| Product size(mm) | L46xW20xT4 | L52xW22xT3.6 | L58xW22xT4 |
| Weight with box | 0.01kg | 0.012kg | 0.014kg |
| Rated discharge current | Typ 20A | Typ 20A | Typ 30A |
| Peak starting current | Typ 100A | Typ 100A | Typ 100A |
| Over current protection current | Typ 50A | Typ 50A | Min 80A/Typ 90A
Max 100A |
| Specical function | 100A high peak starting current power tool |
| Suitable battery type | Lithium(NCM) |
| Rated working voltage B+B- | Max 8.4V |
P+P- input withstand voltage | Max 33V |
Charging overcurrent protection value | Not limited |
| Charge detection voltage | Min 4.225V / Typ 4.28V / Max 4.305V |
Charge detection delay time | Min 0.5S / Typ 1S / Max 1.5S |
Overcharge release voltage | Min 4.03V / Typ 4.05V / Max 4.13V |
Discharge detection voltage | Min 2.17V / Typ 2.25V / Max 2.33V |
| Discharge detection delay time | Min 20ms / Typ 100ms / Max 150ms |
| Discharge release voltage | Min 2.8V / Typ 2.95V / Max 3.05V |
Conditions for lifting protection | Disconnect external load or charge self-recovery |
| Overcurrent detection voltage | Typ 0.1V | Min 0.175V / Typ 0.2V
Max 0.225V |
| Overcurrent protection time | Typ 100MS | Min 5S / Typ 10S
Max 15S |
| Conditions for lifting protection | Disconnect external load or charge self-recovery |
| Short circuit protection current | Typ 100A | Min 45A/Typ 50A
Max 55A |
| Detection delay time | Typ 250μS | Min 150μS/Typ 250μS
Max 400μS |
| Conditions for lifting protection | Disconnect external load or charge self-recovery |
| Main circuit on-state resistance | Typ 5mΩ / Max 9mΩ | Typ 2mΩ / Max 2.5mΩ |
| Normal working current consumption | Typ 5μA / Max 9μA |
| Current consumption during sleep | Max 0.1μA |
Operating Temperature | |
Size $ Packing List
Wire Diagram
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!
FAQ
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.
Noted: We are source manufacturer, We have own brand for "EnerKey",We can customized product as your requirement(Voltage, Wire,Etc) .
We can provide you competitive price in the market if you have bulk
order, Please don't hesitate to contact us.
Mobile & WhatsApp & Wechat: +86 15387469240; Email: kiwi@enerkey.cn
