TP4056 Product sheet (In Chinese only) – NanJing Top Power ASIChttp://www.tp-asic.com/te_product_a/2008-04-09/2236.chtml TP4056 Datasheet (In Chinese only) – NanJing Top Power ASIChttp://www.tp-asic.com/res/tp-asic/pdres/202206/TP4056_42.pdf NanJing Top Power ASIC Websitehttp://www.tp-asic.com/