{"product_id":"21700-3-7v-3500mah-rechargeable-li-ion-battery-with-xh2-54-connector-or-wire-leads","title":"21700 3.7V 3500mAh Rechargeable Li-ion Battery with XH2.54 Connector or Wire Leads","description":"\u003ch2 data-section-id=\"1p927wt\" data-start=\"373\" data-end=\"392\"\u003eOverview\u003c\/h2\u003e\n\u003cp data-start=\"394\" data-end=\"816\"\u003eThe \u003cstrong data-start=\"398\" data-end=\"448\"\u003e21700 3.7V 3500mAh rechargeable Li-ion battery\u003c\/strong\u003e is a single-cell lithium battery pack designed for DIY electronics, RC devices, toys, LED lighting, small robots, portable instruments, wireless modules, and other low-voltage equipment. It uses a \u003cstrong data-start=\"646\" data-end=\"676\"\u003e21700 lithium battery cell\u003c\/strong\u003e, with a \u003cstrong data-start=\"685\" data-end=\"709\"\u003e3.7V nominal voltage\u003c\/strong\u003e, \u003cstrong data-start=\"711\" data-end=\"747\"\u003e3.6–4.2V operating voltage range\u003c\/strong\u003e, and \u003cstrong data-start=\"753\" data-end=\"773\"\u003e3500mAh capacity\u003c\/strong\u003e for longer runtime and stable performance.\u003c\/p\u003e\n\u003cp data-start=\"818\" data-end=\"1110\"\u003eThis product is available in two connection styles: \u003cstrong data-start=\"870\" data-end=\"900\"\u003eXH2.54 red-black connector\u003c\/strong\u003e and \u003cstrong data-start=\"905\" data-end=\"929\"\u003ered-black wire leads\u003c\/strong\u003e. The XH2.54 version is suitable for devices with a matching 2-pin battery plug, while the wire leads version is suitable for soldering, DIY wiring, or custom connector replacement.\u003c\/p\u003e\n\u003ch2 data-section-id=\"qzbkb0\" data-start=\"1112\" data-end=\"1132\"\u003eAvailable Options\u003c\/h2\u003e\n\u003cdiv class=\"TyagGW_tableContainer\"\u003e\n\u003cdiv class=\"group TyagGW_tableWrapper flex flex-col-reverse w-fit\" tabindex=\"-1\"\u003e\n\u003ctable data-start=\"1134\" data-end=\"1494\" class=\"w-fit min-w-(--thread-content-width)\"\u003e\n\u003cthead data-start=\"1134\" data-end=\"1175\"\u003e\n\u003ctr data-start=\"1134\" data-end=\"1175\"\u003e\n\u003cth data-start=\"1134\" data-end=\"1143\" data-col-size=\"md\" class=\"last:pe-10\"\u003eOption\u003c\/th\u003e\n\u003cth data-start=\"1143\" data-end=\"1160\" data-col-size=\"sm\" class=\"last:pe-10\"\u003eConnector Type\u003c\/th\u003e\n\u003cth data-start=\"1160\" data-end=\"1175\" data-col-size=\"md\" class=\"last:pe-10\"\u003eDescription\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody data-start=\"1190\" data-end=\"1494\"\u003e\n\u003ctr data-start=\"1190\" data-end=\"1340\"\u003e\n\u003ctd data-start=\"1190\" data-end=\"1241\" data-col-size=\"md\"\u003e21700 3.7V 3500mAh Battery with XH2.54 Connector\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-start=\"1241\" data-end=\"1265\"\u003eXH2.54 red-black plug\u003c\/td\u003e\n\u003ctd data-col-size=\"md\" data-start=\"1265\" data-end=\"1340\"\u003eReady-to-use version for devices using a 2-pin XH2.54 battery connector\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"1341\" data-end=\"1494\"\u003e\n\u003ctd data-start=\"1341\" data-end=\"1386\" data-col-size=\"md\"\u003e21700 3.7V 3500mAh Battery with Wire Leads\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-start=\"1386\" data-end=\"1409\"\u003eRed-black wire leads\u003c\/td\u003e\n\u003ctd data-col-size=\"md\" data-start=\"1409\" data-end=\"1494\"\u003eNo plug included, suitable for soldering, custom wiring, or connector replacement\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch2 data-section-id=\"1ma7m6t\" data-start=\"1496\" data-end=\"1511\"\u003eKey Features\u003c\/h2\u003e\n\u003cp data-start=\"1513\" data-end=\"1766\"\u003eThe \u003cstrong data-start=\"1517\" data-end=\"1547\"\u003e21700 3.7V 3500mAh battery\u003c\/strong\u003e offers a practical balance of compact size, rechargeable performance, and longer runtime. With a 3500mAh capacity, it is suitable for many small devices that require more battery life than lower-capacity lithium packs.\u003c\/p\u003e\n\u003cp data-start=\"1768\" data-end=\"2077\"\u003eThe battery includes an \u003cstrong data-start=\"1792\" data-end=\"1827\"\u003eintelligent IC protection board\u003c\/strong\u003e, designed to help protect against overcharge, over-discharge, and abnormal use conditions during normal charging and discharging. This makes it more suitable for replacement battery applications and DIY projects compared with unprotected bare cells.\u003c\/p\u003e\n\u003cp data-start=\"2079\" data-end=\"2391\"\u003eThe \u003cstrong data-start=\"2083\" data-end=\"2111\"\u003eXH2.54 connector version\u003c\/strong\u003e includes red and black wires with a 2-pin plug, while the \u003cstrong data-start=\"2170\" data-end=\"2192\"\u003ewire leads version\u003c\/strong\u003e provides red and black output wires for flexible installation. The wire leads version shown in the image has approximately \u003cstrong data-start=\"2316\" data-end=\"2336\"\u003e15cm wire length\u003c\/strong\u003e, making it convenient for DIY connection or soldering.\u003c\/p\u003e\n\u003ch2 data-section-id=\"1a3ueyz\" data-start=\"2393\" data-end=\"2410\"\u003eSpecifications\u003c\/h2\u003e\n\u003cdiv class=\"TyagGW_tableContainer\"\u003e\n\u003cdiv class=\"group TyagGW_tableWrapper flex flex-col-reverse w-fit\" tabindex=\"-1\"\u003e\n\u003ctable data-start=\"2412\" data-end=\"2978\" class=\"w-fit min-w-(--thread-content-width)\"\u003e\n\u003cthead data-start=\"2412\" data-end=\"2435\"\u003e\n\u003ctr data-start=\"2412\" data-end=\"2435\"\u003e\n\u003cth data-start=\"2412\" data-end=\"2424\" data-col-size=\"sm\" class=\"last:pe-10\"\u003eParameter\u003c\/th\u003e\n\u003cth data-start=\"2424\" data-end=\"2435\" data-col-size=\"sm\" class=\"last:pe-10\"\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody data-start=\"2446\" data-end=\"2978\"\u003e\n\u003ctr data-start=\"2446\" data-end=\"2492\"\u003e\n\u003ctd data-start=\"2446\" data-end=\"2461\" data-col-size=\"sm\"\u003eProduct Type\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-start=\"2461\" data-end=\"2492\"\u003eRechargeable Li-ion Battery\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"2493\" data-end=\"2530\"\u003e\n\u003ctd data-start=\"2493\" data-end=\"2505\" data-col-size=\"sm\"\u003eCell Type\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-start=\"2505\" data-end=\"2530\"\u003e21700 Lithium Battery\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"2531\" data-end=\"2557\"\u003e\n\u003ctd data-start=\"2531\" data-end=\"2549\" data-col-size=\"sm\"\u003eNominal Voltage\u003c\/td\u003e\n\u003ctd data-start=\"2549\" data-end=\"2557\" data-col-size=\"sm\"\u003e3.7V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"2558\" data-end=\"2609\"\u003e\n\u003ctd data-start=\"2558\" data-end=\"2584\" data-col-size=\"sm\"\u003eOperating Voltage Range\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-start=\"2584\" data-end=\"2609\"\u003e3.6V–4.2V \/ 3.7V–4.2V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"2610\" data-end=\"2642\"\u003e\n\u003ctd data-start=\"2610\" data-end=\"2634\" data-col-size=\"sm\"\u003eFull Charging Voltage\u003c\/td\u003e\n\u003ctd data-start=\"2634\" data-end=\"2642\" data-col-size=\"sm\"\u003e4.2V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"2643\" data-end=\"2665\"\u003e\n\u003ctd data-start=\"2643\" data-end=\"2654\" data-col-size=\"sm\"\u003eCapacity\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-start=\"2654\" data-end=\"2665\"\u003e3500mAh\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"2666\" data-end=\"2710\"\u003e\n\u003ctd data-start=\"2666\" data-end=\"2690\" data-col-size=\"sm\"\u003eBattery Configuration\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-start=\"2690\" data-end=\"2710\"\u003eSingle Cell \/ 1S\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"2711\" data-end=\"2738\"\u003e\n\u003ctd data-start=\"2711\" data-end=\"2722\" data-col-size=\"sm\"\u003eDiameter\u003c\/td\u003e\n\u003ctd data-start=\"2722\" data-end=\"2738\" data-col-size=\"sm\"\u003eApprox. 21mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"2739\" data-end=\"2764\"\u003e\n\u003ctd data-start=\"2739\" data-end=\"2748\" data-col-size=\"sm\"\u003eLength\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-start=\"2748\" data-end=\"2764\"\u003eApprox. 70mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"2765\" data-end=\"2818\"\u003e\n\u003ctd data-start=\"2765\" data-end=\"2785\" data-col-size=\"sm\"\u003eConnector Options\u003c\/td\u003e\n\u003ctd data-start=\"2785\" data-end=\"2818\" data-col-size=\"sm\"\u003eXH2.54 connector \/ wire leads\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"2819\" data-end=\"2849\"\u003e\n\u003ctd data-start=\"2819\" data-end=\"2832\" data-col-size=\"sm\"\u003eWire Color\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-start=\"2832\" data-end=\"2849\"\u003eRed and black\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"2850\" data-end=\"2903\"\u003e\n\u003ctd data-start=\"2850\" data-end=\"2864\" data-col-size=\"sm\"\u003eWire Length\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-start=\"2864\" data-end=\"2903\"\u003eApprox. 15cm for wire leads version\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"2904\" data-end=\"2955\"\u003e\n\u003ctd data-start=\"2904\" data-end=\"2923\" data-col-size=\"sm\"\u003eProtection Board\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-start=\"2923\" data-end=\"2955\"\u003eBuilt-in IC protection board\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"2956\" data-end=\"2978\"\u003e\n\u003ctd data-start=\"2956\" data-end=\"2971\" data-col-size=\"sm\"\u003eRechargeable\u003c\/td\u003e\n\u003ctd data-start=\"2971\" data-end=\"2978\" data-col-size=\"sm\"\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch2 data-section-id=\"fkrnno\" data-start=\"2980\" data-end=\"3000\"\u003eConnector Details\u003c\/h2\u003e\n\u003cdiv class=\"TyagGW_tableContainer\"\u003e\n\u003cdiv class=\"group TyagGW_tableWrapper flex flex-col-reverse w-fit\" tabindex=\"-1\"\u003e\n\u003ctable data-start=\"3002\" data-end=\"3319\" class=\"w-fit min-w-(--thread-content-width)\"\u003e\n\u003cthead data-start=\"3002\" data-end=\"3038\"\u003e\n\u003ctr data-start=\"3002\" data-end=\"3038\"\u003e\n\u003cth data-start=\"3002\" data-end=\"3012\" data-col-size=\"sm\" class=\"last:pe-10\"\u003eVersion\u003c\/th\u003e\n\u003cth data-start=\"3012\" data-end=\"3026\" data-col-size=\"sm\" class=\"last:pe-10\"\u003eOutput Type\u003c\/th\u003e\n\u003cth data-start=\"3026\" data-end=\"3038\" data-col-size=\"md\" class=\"last:pe-10\"\u003eBest For\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody data-start=\"3053\" data-end=\"3319\"\u003e\n\u003ctr data-start=\"3053\" data-end=\"3171\"\u003e\n\u003ctd data-start=\"3053\" data-end=\"3080\" data-col-size=\"sm\"\u003eXH2.54 Connector Version\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-start=\"3080\" data-end=\"3110\"\u003e2-pin XH2.54 red-black plug\u003c\/td\u003e\n\u003ctd data-col-size=\"md\" data-start=\"3110\" data-end=\"3171\"\u003eDirect replacement for devices using the same XH2.54 plug\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"3172\" data-end=\"3319\"\u003e\n\u003ctd data-start=\"3172\" data-end=\"3193\" data-col-size=\"sm\"\u003eWire Leads Version\u003c\/td\u003e\n\u003ctd data-start=\"3193\" data-end=\"3228\" data-col-size=\"sm\"\u003eRed and black wires without plug\u003c\/td\u003e\n\u003ctd data-col-size=\"md\" data-start=\"3228\" data-end=\"3319\"\u003eDIY electronics, soldering, custom connector installation, battery replacement projects\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp data-start=\"3321\" data-end=\"3589\"\u003eThe red wire is normally \u003cstrong data-start=\"3346\" data-end=\"3362\"\u003epositive (+)\u003c\/strong\u003e, and the black wire is normally \u003cstrong data-start=\"3395\" data-end=\"3411\"\u003enegative (-)\u003c\/strong\u003e. Before installation, please compare the polarity of your original battery connector. Some devices may use the same plug size but different positive and negative wire positions.\u003c\/p\u003e\n\u003ch2 data-section-id=\"mu966k\" data-start=\"3591\" data-end=\"3606\"\u003eApplications\u003c\/h2\u003e\n\u003cp data-start=\"3608\" data-end=\"3861\"\u003eThis \u003cstrong data-start=\"3613\" data-end=\"3656\"\u003e21700 3.7V 3500mAh rechargeable battery\u003c\/strong\u003e can be used for DIY electronics, RC models, educational kits, small robots, LED lights, wireless devices, toys, portable equipment, and other products requiring a \u003cstrong data-start=\"3820\" data-end=\"3860\"\u003e3.7V single-cell Li-ion battery pack\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch2 data-section-id=\"6hv2og\" data-start=\"3863\" data-end=\"3882\"\u003ePackage Includes\u003c\/h2\u003e\n\u003cdiv class=\"TyagGW_tableContainer\"\u003e\n\u003cdiv class=\"group TyagGW_tableWrapper flex flex-col-reverse w-fit\" tabindex=\"-1\"\u003e\n\u003ctable data-start=\"3884\" data-end=\"4107\" class=\"w-fit min-w-(--thread-content-width)\"\u003e\n\u003cthead data-start=\"3884\" data-end=\"3921\"\u003e\n\u003ctr data-start=\"3884\" data-end=\"3921\"\u003e\n\u003cth data-start=\"3884\" data-end=\"3902\" data-col-size=\"sm\" class=\"last:pe-10\"\u003eSelected Option\u003c\/th\u003e\n\u003cth data-start=\"3902\" data-end=\"3921\" data-col-size=\"md\" class=\"last:pe-10\"\u003ePackage Content\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody data-start=\"3932\" data-end=\"4107\"\u003e\n\u003ctr data-start=\"3932\" data-end=\"4025\"\u003e\n\u003ctd data-start=\"3932\" data-end=\"3959\" data-col-size=\"sm\"\u003eXH2.54 Connector Version\u003c\/td\u003e\n\u003ctd data-start=\"3959\" data-end=\"4025\" data-col-size=\"md\"\u003e1 × 21700 3.7V 3500mAh battery with XH2.54 red-black connector\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"4026\" data-end=\"4107\"\u003e\n\u003ctd data-start=\"4026\" data-end=\"4047\" data-col-size=\"sm\"\u003eWire Leads Version\u003c\/td\u003e\n\u003ctd data-col-size=\"md\" data-start=\"4047\" data-end=\"4107\"\u003e1 × 21700 3.7V 3500mAh battery with red-black wire leads\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch2 data-section-id=\"9ghvog\" data-start=\"4109\" data-end=\"4127\"\u003eImportant Notes\u003c\/h2\u003e\n\u003cp data-start=\"4129\" data-end=\"4540\" data-is-last-node=\"\" data-is-only-node=\"\"\u003ePlease confirm the \u003cstrong data-start=\"4148\" data-end=\"4223\"\u003ebattery voltage, capacity, connector type, plug size, and wire polarity\u003c\/strong\u003e before purchase. The XH2.54 connector must match your device socket. If your device uses a different connector or polarity, choose the wire leads version or replace the connector carefully. Do not reverse-connect, short-circuit, puncture, crush, overcharge, over-discharge, or expose the battery to high temperature.\u003c\/p\u003e","brand":"TSolar","offers":[{"title":"XH2.54 \/ 1PCS","offer_id":52288365592850,"sku":"21700-3.7V-3500mAh-1","price":15.59,"currency_code":"USD","in_stock":true},{"title":"XH2.54 \/ 2PCS","offer_id":52288369262866,"sku":"21700-3.7V-3500mAh-3","price":23.99,"currency_code":"USD","in_stock":true},{"title":"Wire Leads \/ 1PCS","offer_id":52288365625618,"sku":"21700-3.7V-3500mAh-2","price":15.59,"currency_code":"USD","in_stock":true},{"title":"Wire Leads \/ 2PCS","offer_id":52288369295634,"sku":"21700-3.7V-3500mAh-4","price":23.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0863\/2860\/6994\/files\/3500-1_0437a123-abfd-458e-b7bc-06be176ae393.png?v=1779371757","url":"https:\/\/tsolar.top\/products\/21700-3-7v-3500mah-rechargeable-li-ion-battery-with-xh2-54-connector-or-wire-leads","provider":"TSolar","version":"1.0","type":"link"}