Peak Forge Battery Pack — RCA — Pick Color

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Weight 0.500000

Universal Battery by Peak with RCA Jack and Removable 18500 Battery — Pick Color

Plug into wireless power with the Peak Forge battery pack. This rechargeable battery pack gives you hours of tattooing power on a single charge. The Forge battery pack comes with a removable 18500 battery, which can be charged using the Efest Slim K2 USB Battery Charger, sold separately.

Balanced, lightweight, and compact, this rechargeable battery pack is made with durable aluminum housing. It features an intuitive user interface for simple voltage adjustments, and a clear readout screen so you can see your battery life and operating voltage.

This listing is for the Peak Forge battery pack + 18500 removable battery with an RCA jack in your choice of color: black, red, or pink.


  • Color Options: Black, Red, Pink
  • Battery is removable
  • Capacity: 2000MaH
  • Weight with Battery: 91g
  • Weight without Battery: 59g
  • Dimensions: 2 5/8" (~66mm) height, 1.25" (~32mm) width
  • RCA Jack
  • Also available with 3.5mm jack
  • Durable aluminum housing
  • Lightweight, compact, and balanced
  • Average Run Time: ~5–8 hours (with standard settings)
  • Includes jumpstart feature; starts at 9v
  • Battery life depends on voltage + tattoo machine
  • Intuitive user interface; easy power-on and voltage adjustments
  • Voltage Range: 4v –12v

Related Products:
Spare Peak 18500 removable battery
Peak Forge-C RCA battery pack (battery built in to housing)
Efest Slim K2 USB Battery Charger

Peak Forge RCA Battery Pack Manual

Size Table

Standard Body Jewelry Measurements

The following webchart is a quick reference guide for standard body jewelry measurements and how to measure basic body jewelry. Please print this webchart to help measure your body jewelry accurately.

Size Reference Chart

Visit our PainfulPleasures Infocenter for additional body jewelry information. There, you will find detailed articles on standard body jewelry sizes, how to measure body jewelry, basic body jewelry, and more.

Standard Body Jewelry Threading

Ensure compatibility between standard (non-custom) PainfulPleasures body jewelry parts using the tables below. More information on threading, including custom thread patterns, can be found in our Threading Infocenter article.

Internally threaded jewelry has a threaded post on the top and/or end, which is then inserted into a threaded hole in the barbell shaft.

Internal Thread Patterns by Gauge


18g, 16g

14g, 12g


Internal Thread Pattern

0.8mm or 0.9mm



Externally threaded jewelry has a threaded post on the barbell shaft, which is then inserted into a threaded hole in the top and/or end.

External Thread Patterns by Gauge


18g, 16g

14g, 12g, 10g

External Thread Pattern



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