Keep your workstation organized while charging your Critical Universal Batteries with the Critical Universal Battery Dock. Compatible for both RCA and 3.5mm connection type batteries. 

This dock features a no fuss easy battery swap, so you can swap out batteries quickly with just one hand. 

Built-in magnetic bottom allows unlimited mounting capabilities for easy access during your tattooing sessions. 


  • Compatible for both RCA & 3.5mm Critical Universal Batteries
  • Two charge slots for Universal Critical Batteries
  • Unlimited magnetic mounting capabilities
  • Batteries fit easily, precisely and will stay in place at most angles
  • Quick battery swap
  • Approximately 2-3 hours charge time from depleted to full


  • Dimensions2″ x 4″ x 1.2″
  • USB-C Cable
  • USB-C Wall Plug
  • Color: Black


  1. US Patent Pending
  2. CA Patent Pending
  3. CN Patent Pending
  4. EU Patent No. 008363311-0002