Shipping policy

. Normal processing can take 2 business days if the order doesn't need further payment verification & approval. During the holiday season or if the batteries are out of stock, it will take a longer time.

If you need to have your order ship out the same day, you must call our customer service at 510-525-2328 (M-F between 9:00 AM-2:00 PM) to check if the item is available to ship out the same day. We charge a $10 expediting fee. Customized items, Polymer and Li-ion battery pack, might take up to 2-3 weeks for assembly and testing. 

Please bear in mind that shipping times within the US (UPS/FedEx)represent the time it normally takes packages to arrive from the day of shipment, not the day of submission, and do not include non-business days (i.e., Saturdays, Sundays, & holidays). Thus, for example, an order for UPS/FedEx 2nd-day delivery placed on Thursday could take until next Tuesday to arrive at its destination, assuming processing is completed within 24 hours and the package ships out on Friday (Friday + 2 business days = Tuesday). It could take longer if the order cannot be processed in time to be shipped out on Friday. For orders placed on Saturday and Sunday, most of them will be ship out on Tuesday since a large number of orders come in during the weekend. When the items have been shipped out, you will get a notice via email. So please make sure to provide a valid email account.

2. We do generate the shipping label before shipping the order. Even though a UPS/FedEx tracking# is available to you, it does not mean the order is ready to ship out.

3. Our shipping label is automatically generated by our system. If you want to use your own UPS/FedEx account, we need to do it manually and there will be a $10 handling fee for that.

4. We don't use USPS normally to ship items due to USPS does not provide a good tracking system. However, if you still prefer to use USPS to ship then we are NOT liable for any damage/ miss shipment and we will charge you $5.00 + whatever USPS shipping cost for handling this.

Important: If your order contains Li-ion battery, Lithium battery or polymer battery, we cannot ship by USPS. It has to be UPS or FedEx.

If this is acceptable to you, you can just place an order using UPS/FedEx and then we can refund you the difference using USPS to ship to you. Please enter the comment section -  ' I like to use USPS to ship and willing to accept the risk of loss or damage shipment.'  Also, please send me an email with your order # so I can follow up for you.

5. UPS/FedEx pick up packages at 4:30 pm every business day. The carrier will update the tracking information 24 hours after they received the packages. That means if you received the shipping confirmation by email on Monday evening, you can check the status of your packages on Tuesday evening. 

 

Q: How to calculate my shipping fee?
 

US customers -- We calculate shipping fees by weight. You can first add the items into a shopping cart and then click the 'view cart' button, type in the zip code, then the shipping cost of different choices will show out.

International customers -- Please process check out first, enter your shipping address, before making the payment, the estimated shipping cost will come out. We don't accept the customer's carrier shipping account.

   
Q: Never receive the package/ stolen packages.
 

Please use the tracking# check at carrier's website, if tracking information shows that the package has been delivered and you are sure no other family members get it, please call UPS / FedEx to speak with an agent to report and file an investigation. It will take around 10-15 business days to investigate. If the carrier finds the package, they will ship to you, if they can not, we will send the same packages or issue a store credit after UPS's verification. Please note that it is not our responsibility for the lost packages.

   
Q: Shipping regulations for Lithium-Ion Batteries
 
Hazardous Materials Shipping Regulation. Due to the Department of Transportation's regulations for shipping Lithium battery, there is an additional hazardous material handling cost that UPS / FedEx charges "per box" that is NOT included as part of the shipping cost.