10.8V wurth / Bosch BAT4 + makita milwaukee accu battery cover

12v power cover flashlight, Quad battery,with 3digit voltmeter.
0.36 inch DC 4.7-32V 2 Wires Mini Digit Display Voltmeter Mini LED Digital Panel Volt Voltage Meter Instrument Car 12V 24V
https://www.aliexpress.com/item/4000355278185.html?spm=a2g0s.9042311.0.0.27424c4dO8R7Gy

copper plate 6 x 17 *0.4-1mm cut and put 90 degree-11 mm on the battery side.

• pole is red cable.
  My quad 250xx flight 8 min this bat.1500MaH.
  stl is on up the battery.

Makita, wurth, bosch 10.8 fits perfect
M12 not test dimension / (copper plate fits)
H version = stronger wall

rings = 10.8 Wurth battery TPU black lighted cover see illustration.

• Makita 3Digit version 22mm high.