{"id":176299,"date":"2026-10-07T22:11:25","date_gmt":"2026-10-07T20:11:25","guid":{"rendered":"https:\/\/mpb.kh.ua\/product\/21700-tesla-battery-cell-salvaged-4-0-4-2-ah-13-14-mom\/"},"modified":"2026-10-16T20:41:22","modified_gmt":"2026-10-16T18:41:22","slug":"21700-tesla-battery-cell-salvaged-4-0-4-2-ah-13-14-mom","status":"publish","type":"product","link":"https:\/\/mpb.kh.ua\/en\/product\/21700-tesla-battery-cell-salvaged-4-0-4-2-ah-13-14-mom\/","title":{"rendered":"21700 Tesla Battery Cell (salvaged) 4.0\u20134.2 Ah \/ 13\u201314 mOm, in heat shrink with insulating ring"},"content":{"rendered":"<p>21700 cells from disassembled Tesla batteries. Each cell comes in new heat shrink with an insulating ring on the positive terminal, ready for assembly. 100% of cells are tested and sorted: this group has a capacity of 4.0\u20134.2 Ah and an internal resistance of 13\u201314 mOm. Use cells from the same group in one battery pack so the cells work evenly and charge the same way. The lower the internal resistance, the better a cell holds current and the less it heats up. For a pack built from matched cells, the difference between neighboring resistance groups is small. What matters is that all cells in the pack come from the same group. For convenience, we can laser-weld bimetallic aluminum\u2013nickel contact pads onto the cells. Wire is easy to solder to these pads, and nickel strip can be spot-welded to them. The service costs 20 UAH per cell.<\/p>\n","protected":false},"excerpt":{"rendered":"<p class=\"mpb-crm-spec\"><strong>Origin:<\/strong> disassembled Tesla batteries<\/p>\n<p class=\"mpb-crm-spec\"><strong>Form factor:<\/strong> 21700<\/p>\n<p class=\"mpb-crm-spec\"><strong>Capacity:<\/strong> 4.0\u20134.2 Ah<\/p>\n<p class=\"mpb-crm-spec\"><strong>Internal resistance:<\/strong> 13\u201314 mOm<\/p>\n<p class=\"mpb-crm-spec\"><strong>Insulation:<\/strong> new heat shrink + insulating ring on the positive terminal<\/p>\n<p class=\"mpb-crm-spec\"><strong>Quality control:<\/strong> 100% of cells tested and sorted by capacity and internal resistance<\/p>\n<p class=\"mpb-crm-spec\"><strong>Service:<\/strong> laser welding of bimetallic aluminum\u2013nickel contact pads for soldering and spot welding \u2014 20 UAH per cell<\/p>\n","protected":false},"featured_media":176330,"comment_status":"open","ping_status":"closed","template":"","meta":{"_monsterinsights_skip_tracking":false},"product_brand":[],"product_cat":[405],"class_list":["post-176299","product","type-product","status-publish","has-post-thumbnail","product_cat-battery-cells","first","onbackorder","shipping-taxable","purchasable","product-type-simple"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.2 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>21700 Tesla Battery Cell (salvaged) 4.0\u20134.2 Ah \/ 13\u201314 mOm, in heat shrink with insulating ring - Power for the military and for home. Always ready!<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/mpb.kh.ua\/en\/product\/21700-tesla-battery-cell-salvaged-4-0-4-2-ah-13-14-mom\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"21700 Tesla Battery Cell (salvaged) 4.0\u20134.2 Ah \/ 13\u201314 mOm, in heat shrink with insulating ring - Power for the military and for home. 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