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Vacuum cleaner power tool battery protection board PCBA

1) Overcharge protection 2) Over discharge protection 3) Short circuit protection 4) Overcurrent protection

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Product Description

1. Technical parameters

Serial number	Test items		Specification	Unit	Remarks
1	Current	Permanent discharge current	20A-25A	A
		Instantaneous discharge current	30A-40A	A
2	Voltage	Charging voltage	Lithium battery charger 5V	V
		Recharging current	/	A
3	Overcharge protection	Overcharge detection voltage	3.75-4.25±0.05V	V	Single core
		Overcharge protection delay	0.5	S
		Overcharge release voltage	3.6-4.08±0.05V	V	Single core
4	Power balance	Cell balance detection voltage	/	V
		Cell balance release voltage	/	V
		Cell balancing current	45±5	mA
5	Over discharge protection	Over-discharge detection voltage	2.1-2.5±0.08V	V
		Over-discharge detection delay	0.1S	S
		Over-discharge release voltage	2.0-2.9±0.1V	V
6	Overcurrent protection	Overcurrent detection voltage	75±5	mV
		Overcurrent detection delay	40mS	mS
		Overcurrent detection current	/	A
		Overcurrent protection release conditions	Disconnect load
7	Short circuit protection	Short circuit protection conditions	Short circuit of external load
		Short circuit detection delay	250uS	uS
		Short circuit protection release condition	Disconnect load
8	Temperature protection	Temperature protection	/	℃	Temperature switch can be added
9	Internal resistance	Main circuit conduction internal resistance	≤20	mΩ
10	Self-consumption	Working current	≤30	uA
		Sleep current (when current is over-discharged)	≤20	uA
11	Operating temperature	Temperature range	﹣20～+80℃	℃
12	Board size	Board size	60251.2mm	mm

2. Four major protections

1) Overcharge protection

2) Over discharge protection

3) Short circuit protection

4) Overcurrent protection

3. Our advantage

1) Quality assurance, excellent materials, advanced equipment, strict quality system

2) Fast delivery, one-stop solution from customer information and requirements, reduces customer costs, and accelerates product launch.

3) It can be customized, and various PCBAs can be customized according to customer requirements.

4) Good service, one-to-one dedicated customer service, seamless connection throughout the process.

4. Custom instructions: Custom instructions:

As long as you tell us your functional requirements, our engineers will provide you with design, development and production solutions. We can design into any shape and size. We have completed tens of thousands of customizations, and we know how to design and produce electronic products that require professionalism and consistency. Our production is fully automatic production line, which can provide you with products with stable quality and consistent performance. Establishing long-term cooperative relations is conducive to maintaining stable product quality and follow-up technical services.

Our company mainly does customization and there are no ready-made ones. The pictures on the Internet are some samples that we have ordered and produced for our customers.

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