5V Boost Converter Step-Up Power Module Lithium Battery Charging Protection Board LED Display USB For DIY Charger 134N3P

Product D escription

Usable batteries: 18650 batteries, mobile phone batteries, tablet batteries, MP3 batteries and other 3.1V-4.2V polymer lithium batteries, (note: parallel connection increases capacity, series connection increases voltage, and can only be used in parallel!) Unusable batteries: dry batteries, accumulators, 1.2V rechargeable batteries, nickel-metal hydride batteries, 3.2V -lithium polymer lithium batteries, etc.

Product Parameter

Small size supports charging and discharging Overcharge and over discharge protection

Input port: Micro USB

Input requirements: 5V constant voltage power supply can be used as charging input power

Output port: USB

Output : 5V1A

Product size: 18*20mm

Pay A ttention

1. The batteries must be connected in parallel, and the voltage must be between 3.2-4.2V to work. Both 18650 flat-head and polymer batteries can work;

2. The battery is positively connected to the motherboard B+ negatively connected to B-, if it is installed reversely, the resistance will be burned out;

3. It is not recommended to mix old and new batteries, batteries with high internal resistance, and batteries with large capacity gaps.

About shipping
Shipping and Packaging All it will be double checked and well packed before sending.It will be dispatched within 2 business days ar buyers pay for the order. It usually takes about 14 to 18 working days for delivering the package to the destination(for remote 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 ant 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.