EGO battery with charger in front 1.ego mega battery 2.ego tank battery 3.short time usb charger EGO battery with charger in front 1.Battery Capacity & Length(2 options) 650mA/84mm,900mA/97mm 2.Outer Diamter of Battery:14.1mm 3.Thread Specifications:(5 options) 510/M7*0.5mm,4081/M8*0.75mm,750/M7.5*0.75mm, 750D/M7.5*0.75mm,808D/M8*0.5mm 4.Electroplated Thread: Gold/Chromium/Nickel Plated 5.Light ...