There are many battery holders for Parkside X20VTeam here. I made this one few years ago. Tested with PAP 20 A1/A3 batteries. For mounting purpose, you can use PDF template (print with 100% scale) and 3x D3,5mm Wood screws.

My printing setup:

Material: Prusament PETG
Nozzle diameter: 0.4 mm
Layer height: 0.2 mm
Infill density: 20% (Gyroid)
Support: Yes
Filament used: 18g
Print time: cca 1:30h

EDIT: Added model with two screws

PARKSIDE X20V Team Battery Holder

by Pajaa · original on Printables ↗

Hobby & Makers / Mechanical Parts

♥ 127⬇ 1.2k🖨 12 prints

License: Creative Commons — Attribution ↗parksidebatteryholder

Print profiles

Parkside_Battery_Holder_Pajaa.STLDEFAULT
⏱ time and weight estimated after preparation · 1 material(s)
Made to order: we prepare this file when you order, which adds a few minutes before printing starts.
Prints on: A1 mini 0.4PLA
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Parkside_Battery_Holder-2_Pajaa.STL
⏱ time and weight estimated after preparation · 1 material(s)
Made to order: we prepare this file when you order, which adds a few minutes before printing starts.
Prints on: A1 mini 0.4PLA
Order this print