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FINALLY!!! The wait is over! A custom cell level fused nickel design that can be spot welded with ease, works perfect, and is super cheap. Battery safety just reached a new affordable and time saving level. These fit the standard 18650 cell holders everyone uses. If you don't have the cell holders we have them here for very cheap. 20.2mm cell spacing which is the standard spacing for the normal cell holders found everywhere.

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