The Aspire CF Battery series are high-end e-cigarette power systems. This battery series features stainless steel endpoints, a metal button, & a carbon fiber coated tube. The Aspire CF Batteries contain a revolutionary spring connector. This unique technology ensures that there will always be a strong connection between the battery & e-cigarette tank. The structural design & control circuit of this battery series makes using it extremely reliable & stable. Aspire cf subΩ battery supply intense power for low resistance atomizer. (CHARGER INCLUDED)