1S 3.7V 18650 PCB board and 4.2V cylindrical protection circuit with 4A constant working current for single li-ion cell

1)Do not apply the PCB which beyonds the specified criterias as above :

2)Sometime , the battery may not discharge when connected this PCB , please connect it to the charge and it can recover to the normal

status .

3)The PCB may not work normarly When Mixing cells which were over-discharged or over-charged ,

4) Do not shock this PCB with big static even though the PCB has been designed with anti-stastic protection function.

My distinuished customers : you can contac us through trademanager or by email if you have any further questions with our product

Please choose the shipment way as you like ,you you can consider express delivery way if your order is urgent , but you

should afford the extra freight cost by express delivery .

As post by air ,usually it takes around 20-60 days ,please notice it and do not open the disputes easily before reaching the

contact with us ,we will try our best to solve the problem with our joint efforts .

Return Policy

We guarantee the product from us with a 12 months warranty against defects in quality, but we are not responsible

for buyers’ mistake or wrong handling, our product must be maintained in proper way. If Item is defective and not working

on arrival, please report the item to us within 7 days of receiving the defective product so we can issue a RMA.

Please contact us to request a return authorization. Please include your name, auction number, and reason for return when you

contact us. All items returned must contain all original packaging materials. Please carefully repack the item. Items returned will

be tested and if found defective, the buyer will be shipped a new replacement unit immediately. In the event that a suitable

replacement is not available a refund will be issued.

The return shipment cost should be afforded by buyer if you can not accept our policy ,please do not buy the item from us ,fair deal is importable

for both of us .

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items and services.

If you have any problems with our itmes or services, please feel free to contact us first before you leave negative feedback. We will do

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