BMS 5S 18V 21V 20A 18650 Lithium Battery Charging Protection Board Circuit PCM

5S 21V 20A

Product selling point

1: Wide range of application

2: Simple to use

3: Real-time detection of the voltage of each battery

4: Realize the protection functions of battery overcharge, overdischarge, discharge overcurrent, short circuit, charging overcurrent, temperature protection, etc.

5: cost-effective

This product uses 5 series lithium battery special IC as the proceor to detect the voltage, charge and discharge current and ambient temperature of each battery in real time, and realize the overcharge, overdischarge, discharge overcurrent, short circuit, charge overcurrent, temperature and other information of the battery. protection, etc.

Charging voltage: 21V

Single-cell charging voltage: 4.225V

Continuous discharge current: 0-20A

Overcharge single cell detection voltage: 4.225V

Overcharge protection delay: 1

Overcharge single cell recovery voltage: 4.1V

Overcharge protection release delay: 1m

Over-discharge single cell detection voltage: 2.7V

Over-discharge protection delay: 1

Over-discharge single cell recovery voltage: 3.0v

Over-discharge protection release delay: 1S±20m

Overcurrent detection voltage: 0.1-0.2V

Overcurrent detection current: 50±5A

Overcurrent detection delay: 1

Recovery status: automatic recovery

With or without short circuit protection: ye

Short circuit detection delay: 250u

Short circuit release delay: 1S

Short circuit detection voltage: 0.5V

Recovery state: automatic recovery after disconnecting the load

Over temperature protection temperature: 70±5℃

Over temperature recovery temperature: 55±5℃

Working status: 15uA (25℃)

Sleep state: 6uA (25℃)

Discharge main circuit internal resistance: 10±2mΩ

Working temperature: -40℃-85℃ Relative humidity≤75%

Storage temperature: -40℃-125℃ Relative humidity≤75%

L*W: 80.5*45 (mm)

Net weight: 25G

1*Lithium battery protection board

5S 18V 21V 20A

feature:

The protection plate is used for 5 series lithium-ion batteries, mainly for power tools.

It uses an IC dedicated to 5S lithium battery as a proceor to detect the real-time voltage, charge and discharge current and ambient temperature of each battery.

Stable various charge and discharge protection functions, such as overcharge protection, overdischarge protection and short circuit protection.

Low power consumption, the working current is about 25uA, and the quiescent current is about 6uA.

Choosing the right protective plate and using it properly is critical to extending battery life.

Product Specifications:

Charging voltage: 19/21V

Single battery charging voltage: 3.8 / 4.25V

Continuous discharge current: 8-20A

Overcharged single battery detection voltage: 3.85-4.25V

Overcharge protection delay: 1S

Overcharged single battery recovery voltage: 3.75-4.13V

Overcharge protection release delay: 1mS

Over-discharge single battery detection voltage: 2-2.8V

Over-discharge protection delay: 1S

Over-discharge single battery recovery voltage: 2.5-3.0V

Over-discharge protection release delay: 100±20mS

Overcurrent detection voltage: 0.1-0.4V

Overcurrent detection current: 30±5A

Overcurrent detection delay: 1S

Short Circuit Protection Support: Ye

Short circuit detection delay: 250uS

Short circuit release delay: 1S

Short circuit detection voltage: 0.8V

Recovery state: automatically after disconnecting the load

Over temperature protection protection temperature: 70±5°

Recovery temperature: 55±5°

Working status: 25uA (25°)

Standby state: 6uA (25°)

Discharge main circuit internal resistance: 30±5mΩ

Working temperature: -40°-85°RH≤75%

Storage temperature: -40°-125°RH≤75%

Dimensions LxW: 45x40mm/1.77*1.57"

Notice:

Please allow 1-3mm error due to manual measurement. Make sure you don't mind before bidding

Due to differences between different monitors, the picture may not reflect the actual color of the item. Thanks!

Package Contents:

1 PC x Battery Charger Protection Board

About shipping
Shipping and Packaging All itwill be double checked and well packed before sending.Itwill be dispatched within 2 business days after buyers pay for the order. It usually takes about 14 to 18 working days for delivering the package to the destination(for e areas,it may take a little longer). 

Special Announcement:
Please fill in the correct and detailed consignee, address and phone number in the order. For fast and correct delivery.If you do not receive order within 30 working days,please feel free to contact Customer Service before leaving Negative and Neutral Feedback, we will do our best to help you resolve the problem.TaxNo, you will only pay what is quoted as total cost at checkout, no more. You are not expected to pay any additional duties ores. If you are asked by Customs or our logistic partner to pay duties, please contact our Customer Service .

Your 100% satisfaction is very important to us
If the product is not on good condition, You can return this product within 14 working days, please contact customer service center before returning.FeedbackYour satisfaction is our first priorityIf you receive the order and it is in good condition,we would be grateful if you would leave us 5 star Positive Feedback for the transaction.