Power-Pond 2x high performance cells (model 18650) PCB PROTECTED | 3.7V | Lithium-ion | Battery 3400 mAh | Button Top (higher positive) cell Panasonic (electronics)
First Impression: Three days delivery time ........ Top Battery, meticulously crafted, German inscription, made in Japan. Three hours into my new Xtar VP1 charger, battery fully, 4,2Volt. Battery fits perfectly, with no air in my Sunwayman C20C flash