ITEM NAME:EU 2 pin plug 16.8V 1A charger adapter for lithium Ion battery li-ion liPo 4s FT Description : Input : 110~240V AC Â 50/60HZ Output : DC 16.8V 1A DC Plug Dimension: 5.5mm*2.1mm DC Plug polarity: Positive Inside, Negative Outside. Auto stop when battery is fully charged. EU Wall socket. Please make sure the output and connector is the same as it will fit for. If you want buy more please go into my shop, and find the Bulk Price, it is a very good price for you! LookupPacking including : 1 X Â EU 16.8V 1A 5.5mm x 2.1mm Adapter.1 X EU 16.8V 1A 5.5mm x 2.1mm Adapter. Output : DC 16.8V 1A. EU Wall socket. DC Plug polarity: Positive Inside, Negative Outside.