The Aspire CF Battery series are high-end e-cigarette power systems. This battery series features stainless steel endpoints, a metal button, and a carbon fiber coated tube. The following three models make up the CF Battery Series: G-power, VV, and Passthrough. The Aspire CF Batteries contain a revolutionary spring connector. This unique technology ensures that there will always be a strong connection between the battery and e-cigarette tank.Aspire CF VV Series: VV 650mah, VV 900mah, VV 1100mah, VV 1300mah, VV 1600mahAspire CF VV+ Series: VV+ 1000mahAspire CF G-Power Series: G-Power 650mah, G-Power 900mah, G-Power 1100mah, G-Power 1300mah, G-Power 1600 mahFeatures:*Carbon Fibre Coated Tube*Stainless Steel Parts*Spring Connector*Metal Button*Safety Holes*Revolutionary Rotary Knob Design*High Quality Cell and Control Circuit*Perfect Inner Structure Design* Colors: Black, Grey, Red and Blue(includes aspire battery charger)