mareld battery

Parts needed:

10mm x 15mm ON/OFF switch

https://www.aliexpress.com/item/33024631441.html?spm=a2g0o.detail.1000014.3.5a775612a9pAGm&gps-id=pcDetailBottomMoreOtherSeller&scm=1007.40050.266918.0&scm_id=1007.40050.266918.0&scm-url=1007.40050.266918.0&pvid=9ed276c1-7840-4012-959d-2066bb6e0ecf&_t=gps-id:pcDetailBottomMoreOtherSeller,scm-url:1007.40050.266918.0,pvid:9ed276c1-7840-4012-959d-2066bb6e0ecf,tpp_buckets:668%232846%238110%231995&pdp_ext_f=%257B%2522sku_id%2522%253A%252210000013005158054%2522%252C%2522sceneId%2522%253A%252230050%2522%257D&pdp_pi=-1%253B6.74%253B-1%253B-1%2540salePrice%253BNOK%253Brecommend-recommend
DC Power Socket 5.5mm*2.1mm
https://www.aliexpress.com/item/1005003382746968.html?spm=a2g0o.productlist.0.0.3fc1457dRFJlws&algo_pvid=ed715bd9-2921-4de8-82f8-3024039c559d&algo_exp_id=ed715bd9-2921-4de8-82f8-3024039c559d-8&pdp_ext_f=%7B%22sku_id%22%3A%2212000026221873782%22%7D&pdp_pi=-1%3B17.7%3B-1%3B-1%40salePrice%3BNOK%3Bsearch-mainSearch

5.5mm*2.1mm Plug