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BackType 103 battery holder with leaf spring, Keystone, https://ken.keyeuro.eu/cat/590.pdf AA battery holder Keystone type 2993 negative battery contact Keystone type 3008 coin cell Panasonic CR-2477/VCN battery, https://industrial.panasonic.com/cdbs/www-data/pdf2/AAA4000/AAA4000D502.PDF battery.
- 1.90135 3.26879 vertex -3.72964 -9.00415 3.26879.
- 2.510463e-03 -9.885301e-01 facet normal -0.301695.