Tektronix 222 Battery Charger – Introduction
The Tektronix 222 and its variants (such as the Tektronix 224, 222A, and 222PS) had a sealed lead-acid (SLA) battery (P/N 146-0075-00) as original equipment. Unfortunately, no one makes replacements for these SLA batteries any more. They have been unavailable for quite a long time. In addition, there are few (if any) currently available SLA batteries that will fit in the scope. As a result, there is a need for a modern, readily available replacement for the original equipment battery. Enter the Tektronix 222 Battery Adapter Kit!
Tektronix 222 Battery Charger – Kit Description
The battery adapter kit replaces the original equipment battery with up to three readily available 18650 rechargeable lithium batteries. Conveniently, you do not have to modify the scope to make use of the kit (other than to remove the original 146-0075-00 SLA battery). Because the kit provides both charging and protection circuitry, you can use either protected or unprotected 18650 cells.
- 1- Assembled and tested battery charger circuit board
- 1 – 3D printed case
- 3 – Light pipes to bring the LED indicators to the front of the case
- 1 – Jumper cable to attach to the scope’s battery connector
- 1 – Label (see photos)
- The kit does not include rechargeable 18650 lithium batteries (required for operation).
- Tektronix 222
- Tektronix 222A
- Tektronix 222PS
- Tektronix 224
Attributions and more information
Circuit board design based upon the work of Kitsune-Denshi. licensed under the Creative Commons Attribution-ShareAlike License.