{"product_id":"sunstone-wh2-battery-welding-electrodes","title":"Sunstone WH2 Battery Welding Electrodes","description":"\u003ch2\u003e3\"³ Battery Spot Welder Electrodes\u003c\/h2\u003e\n\u003cp\u003eThese electrodes are use with Sunstones WH2 weld head for battery welding applications.\u003c\/p\u003e\n\u003ch3 class=\"text-text-100 mt-2 -mb-1 text-base font-bold\"\u003eChoosing Your Variant: 1\/8\" or 1\/4\" Electrode Diameter\u003c\/h3\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eThese battery welding electrodes come in two diameter sizes. \u003cstrong\u003eThe right choice depends on which WH2 weld head variant you have\u003c\/strong\u003e — the electrode diameter must match the head's holder size. Beyond compatibility, diameter also affects weld spot size and the amount of current the electrode can carry.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eEL125BATT — 1\/8\" (0.125\") Diameter, 1 Pair\u003c\/strong\u003e For use with the \u003cstrong\u003eWH2125 weld head\u003c\/strong\u003e (the standard configuration). The 1\/8\" electrode features a \u003cstrong\u003e1\/16\" step on each side\u003c\/strong\u003e, creating a narrow tip that concentrates weld energy into a small, precise spot. This is the correct electrode for most \u003cstrong\u003estandard nickel strip battery tab welding\u003c\/strong\u003e on 18650, 21700, and similar cylindrical cells. If you're unsure which size to order, and you have the standard WH2125 head, \u003cstrong\u003ethis is your electrode\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eEL250BATT — 1\/4\" (0.250\") Diameter, 1 Pair\u003c\/strong\u003e For use with the \u003cstrong\u003eWH2250 weld head\u003c\/strong\u003e (the upgraded configuration). The 1\/4\" electrode features a \u003cstrong\u003e1\/16\" step on one side and a 3\/32\" step on the other\u003c\/strong\u003e, giving you two usable tip profiles in one electrode for added versatility. The larger shank carries more current without degrading, making it the right match for \u003cstrong\u003ehigher-power welders, thicker tab materials\u003c\/strong\u003e, or applications where the 1\/8\" electrode shows wear quickly.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cem\u003eNote: These electrodes are sold in pairs and are designed specifically for the Sunstone WH2 weld head. They are not interchangeable between WH2125 and WH2250 head variants. If you're unsure which head you have, check the model number on your weld head — WH2125 takes the 1\/8\" electrode, WH2250 takes the 1\/4\".\u003c\/em\u003e\u003c\/p\u003e\n\u003ch4\u003eStruggling to know what electrodes to use? Check out our\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/www.sunstonewelders.com\/pages\/electrode-selection-guide?electrode_product_page_batt\"\u003eELECTRODE SELECTION GUIDE\u003c\/a\u003e\u003cspan\u003e to find what will work best for your project.\u003c\/span\u003e\n\u003c\/h4\u003e","brand":"Sunstone Welders","offers":[{"title":"EL250BATT","offer_id":56442144260262,"sku":"305090","price":119.0,"currency_code":"USD","in_stock":true},{"title":"EL125BATT","offer_id":56442144293030,"sku":"305070","price":59.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0051\/6833\/2890\/files\/sunstone-welders-battery-welder-electrodeelbatt.jpg?v=1778047061","url":"https:\/\/themakerschest.com\/products\/sunstone-wh2-battery-welding-electrodes","provider":"The Maker's Chest","version":"1.0","type":"link"}