$ ShopinJA Electronics $ => Home Electronics For Sale/Wanted => Topic started by: mairaliang13 on February 18, 2014, 02:50:59 AM $ ShopinJA Electronics $ => Home Electronics For Sale/Wanted => Topic started by: mairaliang13 on February 18, 2014, 02:50:59 AM|
Title: three types of battery cells which will cut down cost? Post by: mairaliang13 on February 18, 2014, 02:50:59 AM Hello I am hunting for a power bank which there is no need for any extra cables. Is there any restriction or consideration for the purchashing of power bank In USA? It is a bit hard for me to make a decision that market prices of power bank products vary widely. I am astonished to learn that some manufacturers even to gain the order form to spare no sacrifice the product quality is a price. When they have to choose between quality and price, quality usually comes off second - best. Well, how to cut down the cost?? Replace the battery cells with those with weak quality!Most super low price power bank might use three types of battery cells: (content from www.koeok.com (http://www.koeok.com)) 1. refurbished and used battery cells which are at end of their life span. 2. under specification cells (another word: power bamk is over marked) in capacity. 3. B, C grade cells or rejected cells from production line which usually cost less than A grade cells (quality product), As regards ways to distinguish these battery cells from normal ones, there are so many article online that you can simulate to identify them, Trust to luck for the rest. |