Channel: Unboxingexperience7
Category: People & Blogs
Tags: how to18650liionprotectionpositivebatteryreversemagnetbuttonnegativefixtopflatspacerflashlightpolarity
Description: Some flashlights have a mechanical reverse polarity protection. This means, you need to use button top 18650 batteries. Batteries with flat top won't work unless you make use of this trick. on.fb.me/unboxingexperience