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Where are the products shipped from?

We have Japan, The United States and Poland warehouses that can ship to all over the world, we will choose a suitable warehouse according to the customer's country

How long does it take to ship after placing an order?

Generally we will ship your package within 24 hours after receive your order on business days. In special situation such as product pre-sales or out of stock, we will explain the shipping time on the product page

How to apply for return and exchange?

Please kindly contact us: or feel free to send message with online chat, we will response as soon as possible.

If I want to apply for a return or exchange, when should I apply?

We support 30 days return and exchange, please contact with us to return or exchange within 30 days after receive your package

Can multiple ports be used to recharge the product at the same time?

Of course, CellPowa 500 has a total of three input ports, and the fastest full recharging time is about 3 hours

How to know if CellPowa 500 power station can charge my device?

Please check out your device's operating power, if it is no more than the output power of the CellPowa 500, then our power station can charge your device

How many times does CellPowa 500 has a cycle life? And how many years can I use?

CellPowa 500 power station has over 2000 times cycle life, in the case of meeting the normal use needs of the family, it can be used for 10-15 years

What kind of battery is used in CellPowa 500?

We are not using traditional ternary lithium battery, we use more safe and reliable LiFePO4 battery, you can rest assured to use it, we promise no explosion, no fire, no leakage

Does CellPowa 500 use a pure sine wave inverter?

Of course we use pure sine wave inverter, so you can store the mains electricity in our power station

What's the BigBlue's mission?

In the future, we look forward to combining portable power station with solar panels to build mobile solar generator to realize the vision of bringing green energy available everywhere. In particular, it will bring sufficient power to families in areas with insufficient power to inject strength into development

 Where does BigBlue come from? 

BigBlue was founded in 2015 in HongKong, China, with branches and local warehouses in the United States, Europe and Japan to provide customers with fast delivery and convenient after-sales service

What are the advantages of BigBlue?

We have a professional R&D team of more than 100 engineers, an independent and complete R&D center, and we have first-class manufacturing technology for energy storage products, our all products are designed by ourselves and have unique performance and appearance

How can I find my order?

Please login in our website and you can find your order details in user center

How can I know the tracking information of my order?

We will send tracking information to your email after shipment, and you can also find tracking information in your order details page

How can I be notified when you offer any discounts? 

You can see discount information in our product page, and you will receive our latest news after subscribing