{"product_id":"two-pack-7-4v-700mah-li-ion-sm-4p-rechargeable-bat","title":"Two Pack 7.4V 700mAh Li Ion SM-4P Rechargeable Battery With Cable For HJ812 HJ820 HJ825 HJ822 HJ138 And Bezgar TX126 RC Boats Designed For Quick Swaps Reliable Power And Long Runtimes For Hobbyists","description":"\u003cdiv\u003eTwo-Pack 7.4V 700mAh SM-4P RC Boat Battery with Cable\u003cbr\u003e\n✔️ Two 7.4V 700mAh Li-ion SM-4P packs for HJ812\/HJ820\/HJ825\/HJ822\/HJ138 \u003cp\u003eThis two-pack 7.4V 700mAh Li-ion battery set uses SM-4P plugs, designed for quick swaps on specific RC boats. It’s a compact power source that helps hobbyists keep their HJ812, HJ820, HJ825, HJ822, HJ138, and Bezgar TX126 boats running longer between charges.\u003c\/p\u003e \u003cp\u003e✅ Real capacity: 700mAh at 7.4V Li-ion (actual may vary 700-800mAh).\u003cbr\u003e✅ Compatible only with HJ812, HJ820, HJ825, HJ822, HJ138 and TX126 RC boats.\u003cbr\u003e✅ SM-4P plug; red wire is positive, black negative; ensure polarity matches your device.\u003cbr\u003e✅ Dimensions: 54 x 28.5 x 14.6 mm (2.14 x 1.12 x 0.57 in).\u003cbr\u003e✅ Weight: 45 g per battery.\u003cbr\u003e✅ Discharge 10C, charge 1C.\u003cbr\u003e✅ USB charging cable included; red LED shows charging, green when full.\u003cbr\u003e✅ Package includes 2 batteries and 2 USB charge cables.\u003cbr\u003e✅ Note: not for RC cars; verify correct polarity before use.\u003c\/p\u003e \u003cp\u003e💡 What is a 7.4V RC boat battery used for and how do you pick the right one? Here’s a handy guide for hobbyists chasing longer runtimes.\u003cbr\u003e- Compatibility: choose a 7.4V pack with the correct plug (SM-4P) to fit your hull\u003cbr\u003e- Capacity matters: target 700mAh+ with 10C discharge for steady power\u003cbr\u003e- Safety: ensure polarity matches and use the included USB charger\u003cbr\u003e- Application fit: designed for specific boats like HJ812, HJ820, HJ825, HJ822, HJ138 and TX126\u003c\/p\u003e✝️\u003c\/div\u003e","brand":"Amazon","offers":[{"title":"Default Title","offer_id":48952948752619,"sku":"VXB0F8BQK6XG","price":61.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0662\/3268\/0683\/files\/71_o2pIhGZL.jpg?v=1782648527","url":"https:\/\/vxb.com\/products\/two-pack-7-4v-700mah-li-ion-sm-4p-rechargeable-bat","provider":"VXB Bearings","version":"1.0","type":"link"}