Banggood Dear customer, Thank you for your order and before even attempting to explain the reasons leading to this unintended mistake, we would like to sincerely apologize to you. In our attempt to serve you better and retain you as one of our valuable customers, please contact our customer service representatives by this link: http://www.banggood.com/Contact-Us_hi111 We would highly appreciate if you could send us all the information listed here below: 1.Some photos of the shipping label, which can be found on the external side of the package; 2.The SKU number of the products you received. You can find this information on the label placed on the item itself; 3.Some photos or video to show the entity of the problem; 4.The order number and the product ID. Looking for your kindly reply. Have a nice day. Best regards, Banggood team  

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vova123 Ensure that you have placed 2 (two) batteries. Looks like you put only one battery.

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Patty @vova123 Wow,thank you. Indeed there were just one cell. Now, with two batteries, it works! - Thank you!

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