{"id":1118,"date":"2026-06-21T15:34:40","date_gmt":"2026-06-21T07:34:40","guid":{"rendered":"https:\/\/www.ifunpower.com\/?p=1118"},"modified":"2026-09-16T01:32:28","modified_gmt":"2026-09-15T17:32:28","slug":"ifungoo-b3-lithium-battery-waterproof-lithium-battery-for-paddle-board-thrusters","status":"publish","type":"post","link":"https:\/\/www.ifunpower.com\/index.php\/2026\/06\/21\/ifungoo-b3-lithium-battery-waterproof-lithium-battery-for-paddle-board-thrusters\/","title":{"rendered":"IFUNGOO B3 Lithium battery | Waterproof lithium battery for paddle board thrusters"},"content":{"rendered":"<p class=\"wp-block-paragraph\">The IFUNGOO B3 Compact &#038; Portable Long-Lasting Power LiFePO4 Battery is the workhorse power pack for the IFUNGOO Y-series electric thrusters. With 30Ah \/ 672Wh capacity and a 5.5kg IP68 waterproof hard case, the B3 strikes a strong balance between runtime and portability for serious paddlers who don&#8217;t want a heavy battery. The digital display panel shows remaining capacity at a glance.<\/p>\n<p>The B3 is rated IP68 waterproof \u2014 fully sealed, safe and reliable for on-water use. It carries the full set of international safety certifications: CE, FCC, UN38.3, UL, ISED, MSDS, RoHS. IFUNGOO holds over 20 invention and utility model patents. The B3 pairs with the Y01, Y02, Y03, Y04, Y01-K, Y02-K, Y03-K, H01 and all other IFUNGOO Y-series and H-series thrusters.<\/p>\n<p>Always wear a certified life jacket, secure the ankle leash, operate in water deeper than 0.5 m, keep fingers away from the propeller, and rinse with fresh water after every saltwater use. Only OEM-specified batteries are recommended. Minors under 18 must be supervised.<\/p>\n<p>Direct factory pricing, free shipping on bulk orders, 12-month warranty. Order yours at iFUNPOWER.com.<\/p>\n<figure class=\"wp-block-image alignfull size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"738\" height=\"1024\" src=\"https:\/\/www.ifunpower.com\/wp-content\/uploads\/2026\/06\/B3\u8be6\u60c5\u9875\u82f1\u6587_01-738x1024.jpg\" alt=\"IFUNGOO B3 battery - cover image\" class=\"wp-image-1120\" srcset=\"https:\/\/www.ifunpower.com\/wp-content\/uploads\/2026\/06\/B3\u8be6\u60c5\u9875\u82f1\u6587_01-738x1024.jpg 738w, https:\/\/www.ifunpower.com\/wp-content\/uploads\/2026\/06\/B3\u8be6\u60c5\u9875\u82f1\u6587_01-216x300.jpg 216w, https:\/\/www.ifunpower.com\/wp-content\/uploads\/2026\/06\/B3\u8be6\u60c5\u9875\u82f1\u6587_01.jpg 750w\" sizes=\"auto, (max-width: 738px) 100vw, 738px\" \/><\/figure>\n<figure class=\"wp-block-image alignfull size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"750\" height=\"1013\" src=\"https:\/\/www.ifunpower.com\/wp-content\/uploads\/2026\/06\/B3\u8be6\u60c5\u9875\u82f1\u6587_02.jpg\" alt=\"IFUNGOO B3 battery - key features\" class=\"wp-image-1121\" srcset=\"https:\/\/www.ifunpower.com\/wp-content\/uploads\/2026\/06\/B3\u8be6\u60c5\u9875\u82f1\u6587_02.jpg 750w, https:\/\/www.ifunpower.com\/wp-content\/uploads\/2026\/06\/B3\u8be6\u60c5\u9875\u82f1\u6587_02-222x300.jpg 222w\" sizes=\"auto, (max-width: 750px) 100vw, 750px\" \/><\/figure>\n<figure class=\"wp-block-image alignfull size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"750\" height=\"836\" src=\"https:\/\/www.ifunpower.com\/wp-content\/uploads\/2026\/06\/B3\u8be6\u60c5\u9875\u82f1\u6587_03.jpg\" alt=\"IFUNGOO B3 battery - product details\" class=\"wp-image-1122\" srcset=\"https:\/\/www.ifunpower.com\/wp-content\/uploads\/2026\/06\/B3\u8be6\u60c5\u9875\u82f1\u6587_03.jpg 750w, https:\/\/www.ifunpower.com\/wp-content\/uploads\/2026\/06\/B3\u8be6\u60c5\u9875\u82f1\u6587_03-269x300.jpg 269w\" sizes=\"auto, (max-width: 750px) 100vw, 750px\" \/><\/figure>\n<figure class=\"wp-block-image alignfull size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"750\" height=\"772\" src=\"https:\/\/www.ifunpower.com\/wp-content\/uploads\/2026\/06\/B3\u8be6\u60c5\u9875\u82f1\u6587_04.jpg\" alt=\"IFUNGOO B3 battery - detail view 3\" class=\"wp-image-1123\" srcset=\"https:\/\/www.ifunpower.com\/wp-content\/uploads\/2026\/06\/B3\u8be6\u60c5\u9875\u82f1\u6587_04.jpg 750w, https:\/\/www.ifunpower.com\/wp-content\/uploads\/2026\/06\/B3\u8be6\u60c5\u9875\u82f1\u6587_04-291x300.jpg 291w\" sizes=\"auto, (max-width: 750px) 100vw, 750px\" \/><\/figure>\n<figure class=\"wp-block-image alignfull size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"746\" height=\"1024\" src=\"https:\/\/www.ifunpower.com\/wp-content\/uploads\/2026\/06\/B3\u8be6\u60c5\u9875\u82f1\u6587_05-746x1024.jpg\" alt=\"IFUNGOO B3 battery - specs and features 4\" class=\"wp-image-1124\" srcset=\"https:\/\/www.ifunpower.com\/wp-content\/uploads\/2026\/06\/B3\u8be6\u60c5\u9875\u82f1\u6587_05-746x1024.jpg 746w, https:\/\/www.ifunpower.com\/wp-content\/uploads\/2026\/06\/B3\u8be6\u60c5\u9875\u82f1\u6587_05-218x300.jpg 218w, https:\/\/www.ifunpower.com\/wp-content\/uploads\/2026\/06\/B3\u8be6\u60c5\u9875\u82f1\u6587_05.jpg 750w\" sizes=\"auto, (max-width: 746px) 100vw, 746px\" \/><\/figure>\n<figure class=\"wp-block-image alignfull size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"750\" height=\"663\" src=\"https:\/\/www.ifunpower.com\/wp-content\/uploads\/2026\/06\/B3\u8be6\u60c5\u9875\u82f1\u6587_06.jpg\" alt=\"IFUNGOO B3 battery - specs and features 5\" class=\"wp-image-1125\" srcset=\"https:\/\/www.ifunpower.com\/wp-content\/uploads\/2026\/06\/B3\u8be6\u60c5\u9875\u82f1\u6587_06.jpg 750w, https:\/\/www.ifunpower.com\/wp-content\/uploads\/2026\/06\/B3\u8be6\u60c5\u9875\u82f1\u6587_06-300x265.jpg 300w\" sizes=\"auto, (max-width: 750px) 100vw, 750px\" \/><\/figure>\n<figure class=\"wp-block-image alignfull size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"592\" height=\"1024\" src=\"https:\/\/www.ifunpower.com\/wp-content\/uploads\/2026\/06\/B3\u8be6\u60c5\u9875\u82f1\u6587_07-592x1024.jpg\" alt=\"IFUNGOO B3 battery - specs and features 6\" class=\"wp-image-1126\" srcset=\"https:\/\/www.ifunpower.com\/wp-content\/uploads\/2026\/06\/B3\u8be6\u60c5\u9875\u82f1\u6587_07-592x1024.jpg 592w, https:\/\/www.ifunpower.com\/wp-content\/uploads\/2026\/06\/B3\u8be6\u60c5\u9875\u82f1\u6587_07-173x300.jpg 173w, https:\/\/www.ifunpower.com\/wp-content\/uploads\/2026\/06\/B3\u8be6\u60c5\u9875\u82f1\u6587_07.jpg 750w\" sizes=\"auto, (max-width: 592px) 100vw, 592px\" \/><\/figure>\n<figure class=\"wp-block-image alignfull size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"638\" height=\"1024\" src=\"https:\/\/www.ifunpower.com\/wp-content\/uploads\/2026\/06\/B3\u8be6\u60c5\u9875\u82f1\u6587_08-638x1024.jpg\" alt=\"IFUNGOO B3 battery - specs and features 7\" class=\"wp-image-1127\" srcset=\"https:\/\/www.ifunpower.com\/wp-content\/uploads\/2026\/06\/B3\u8be6\u60c5\u9875\u82f1\u6587_08-638x1024.jpg 638w, https:\/\/www.ifunpower.com\/wp-content\/uploads\/2026\/06\/B3\u8be6\u60c5\u9875\u82f1\u6587_08-187x300.jpg 187w, https:\/\/www.ifunpower.com\/wp-content\/uploads\/2026\/06\/B3\u8be6\u60c5\u9875\u82f1\u6587_08.jpg 750w\" sizes=\"auto, (max-width: 638px) 100vw, 638px\" \/><\/figure>\n<figure class=\"wp-block-image alignfull size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"588\" height=\"1024\" src=\"https:\/\/www.ifunpower.com\/wp-content\/uploads\/2026\/06\/B3\u8be6\u60c5\u9875\u82f1\u6587_09-588x1024.jpg\" alt=\"IFUNGOO B3 battery - usage illustration 8\" class=\"wp-image-1128\" srcset=\"https:\/\/www.ifunpower.com\/wp-content\/uploads\/2026\/06\/B3\u8be6\u60c5\u9875\u82f1\u6587_09-588x1024.jpg 588w, https:\/\/www.ifunpower.com\/wp-content\/uploads\/2026\/06\/B3\u8be6\u60c5\u9875\u82f1\u6587_09-172x300.jpg 172w, https:\/\/www.ifunpower.com\/wp-content\/uploads\/2026\/06\/B3\u8be6\u60c5\u9875\u82f1\u6587_09.jpg 750w\" sizes=\"auto, (max-width: 588px) 100vw, 588px\" \/><\/figure>\n<figure class=\"wp-block-image alignfull size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"691\" height=\"1024\" src=\"https:\/\/www.ifunpower.com\/wp-content\/uploads\/2026\/06\/B3\u8be6\u60c5\u9875\u82f1\u6587_10-691x1024.jpg\" alt=\"IFUNGOO B3 battery - usage illustration 9\" class=\"wp-image-1129\" srcset=\"https:\/\/www.ifunpower.com\/wp-content\/uploads\/2026\/06\/B3\u8be6\u60c5\u9875\u82f1\u6587_10-691x1024.jpg 691w, https:\/\/www.ifunpower.com\/wp-content\/uploads\/2026\/06\/B3\u8be6\u60c5\u9875\u82f1\u6587_10-203x300.jpg 203w, https:\/\/www.ifunpower.com\/wp-content\/uploads\/2026\/06\/B3\u8be6\u60c5\u9875\u82f1\u6587_10.jpg 750w\" sizes=\"auto, (max-width: 691px) 100vw, 691px\" \/><\/figure>\n<figure class=\"wp-block-image alignfull size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"750\" height=\"822\" src=\"https:\/\/www.ifunpower.com\/wp-content\/uploads\/2026\/06\/B3\u8be6\u60c5\u9875\u82f1\u6587_11.jpg\" alt=\"IFUNGOO B3 battery - usage illustration 10\" class=\"wp-image-1130\" srcset=\"https:\/\/www.ifunpower.com\/wp-content\/uploads\/2026\/06\/B3\u8be6\u60c5\u9875\u82f1\u6587_11.jpg 750w, https:\/\/www.ifunpower.com\/wp-content\/uploads\/2026\/06\/B3\u8be6\u60c5\u9875\u82f1\u6587_11-274x300.jpg 274w\" sizes=\"auto, (max-width: 750px) 100vw, 750px\" \/><\/figure>\n<figure class=\"wp-block-image alignfull size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"709\" height=\"1024\" src=\"https:\/\/www.ifunpower.com\/wp-content\/uploads\/2026\/06\/B3\u8be6\u60c5\u9875\u82f1\u6587_12-709x1024.jpg\" alt=\"IFUNGOO B3 battery - usage illustration 11\" class=\"wp-image-1131\" srcset=\"https:\/\/www.ifunpower.com\/wp-content\/uploads\/2026\/06\/B3\u8be6\u60c5\u9875\u82f1\u6587_12-709x1024.jpg 709w, https:\/\/www.ifunpower.com\/wp-content\/uploads\/2026\/06\/B3\u8be6\u60c5\u9875\u82f1\u6587_12-208x300.jpg 208w, https:\/\/www.ifunpower.com\/wp-content\/uploads\/2026\/06\/B3\u8be6\u60c5\u9875\u82f1\u6587_12.jpg 750w\" sizes=\"auto, (max-width: 709px) 100vw, 709px\" \/><\/figure>\n<figure class=\"wp-block-image alignfull size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"642\" height=\"1024\" src=\"https:\/\/www.ifunpower.com\/wp-content\/uploads\/2026\/06\/B3\u8be6\u60c5\u9875\u82f1\u6587_13-642x1024.jpg\" alt=\"IFUNGOO B3 battery - usage illustration 12\" class=\"wp-image-1132\" srcset=\"https:\/\/www.ifunpower.com\/wp-content\/uploads\/2026\/06\/B3\u8be6\u60c5\u9875\u82f1\u6587_13-642x1024.jpg 642w, https:\/\/www.ifunpower.com\/wp-content\/uploads\/2026\/06\/B3\u8be6\u60c5\u9875\u82f1\u6587_13-188x300.jpg 188w, https:\/\/www.ifunpower.com\/wp-content\/uploads\/2026\/06\/B3\u8be6\u60c5\u9875\u82f1\u6587_13.jpg 750w\" sizes=\"auto, (max-width: 642px) 100vw, 642px\" \/><\/figure>\n<figure class=\"wp-block-image alignfull size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"750\" height=\"909\" src=\"https:\/\/www.ifunpower.com\/wp-content\/uploads\/2026\/06\/B3\u8be6\u60c5\u9875\u82f1\u6587_14.jpg\" alt=\"IFUNGOO B3 battery - safety precautions\" class=\"wp-image-1133\" srcset=\"https:\/\/www.ifunpower.com\/wp-content\/uploads\/2026\/06\/B3\u8be6\u60c5\u9875\u82f1\u6587_14.jpg 750w, https:\/\/www.ifunpower.com\/wp-content\/uploads\/2026\/06\/B3\u8be6\u60c5\u9875\u82f1\u6587_14-248x300.jpg 248w\" sizes=\"auto, (max-width: 750px) 100vw, 750px\" \/><\/figure>\n","protected":false},"excerpt":{"rendered":"<p>The IFUNGOO B3 Compact &#038; Portable Long-Lasting Power LiFePO4 Battery is the workhorse power pack for the IFUNGOO Y-series electric thrusters. With 30Ah \/ 672Wh capacity and a 5.5kg IP68 waterproof hard case, the B3 strikes a strong balance between runtime and portability for serious paddlers who don&#8217;t want a heavy battery. The digital display [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":1119,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"shop_links":"","footnotes":""},"categories":[3],"tags":[99,39,8,54],"class_list":["post-1118","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-product","tag-b3-lithium-battery","tag-electricfin","tag-ifungoo","tag-sup-electric-fin"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.5 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>IFUNGOO B3 Lithium Battery | IFUNGOO<\/title>\n<meta name=\"description\" content=\"IFUNGOO B3 lithium battery \u2014 waterproof power source designed for paddle board thrusters. 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