my son has a chrome sb that worked fine til yesterday when i changed his carto on his tank. the carto works fine on my provari but is getting nothing from the sb. i put my 3.0 carto on his sb and it works as well as you could expect 3.0 to work on a 3.7v. could this be a center pin problem? ive never experienced this before, help please.
also tried a vivi tank on the sb and nothing?
also tried a vivi tank on the sb and nothing?
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