TESTER WANTED If given the chance to have a device that not only charges your 18650-21700 battery but can be used as a power bank for your phone, would you say Yes❤️ to me? Come on and join us here!! Rules to enter 1. Like and share this post. 2. Tell us the charger you are using now. 3. If you want to review this product is also ok, just PM us to know your review history. This contest will end at 19th/Aug. Good luck to everyone here PM us your information and your previous review works.