awt 21700 lithium battery kits 35a 50a 3.7v 4000mah batteries blue colors optional

note: 1. buyer should take the charge for tax or vat. normally would generate tariff. so please check your country`s customs rules before you purchasing it. 2. if some of the colors and models are out of stock, we will send a message to you on dhgate, pls kindly check your inbox and reply us asap . or,we will replace it with other color and models for you.thank you very much for your understanding.3.due to different light and monitor, the color of the pictures and real product has a little different. pls understand it.