{"product_id":"speras-lth45-21700-lithium-batter-cold-weather-battery-flashlight-battery","title":"SPERAS LTH45 4500mAh 21700 Low Temperature Lithium Battery","description":"\u003cstyle\u003e\n    \/* 🏆 Speras Universal Hero Banner \u0026 Layout Style *\/\n    .speras-pdp-container { font-family: 'Inter', 'Helvetica Neue', Arial, sans-serif; color: #333; line-height: 1.6; max-width: 950px; margin: 0 auto; padding: 20px; box-sizing: border-box; }\n    .speras-hero-banner { background: linear-gradient(135deg, #0f172a 0%, #1e293b 100%); padding: 50px 30px; border-radius: 20px; margin-bottom: 40px; text-align: center; border-bottom: 6px solid #ea580c; box-shadow: 0 10px 25px rgba(0,0,0,0.15); }\n    .speras-hero-banner h1 { font-size: 38px; font-weight: 900; color: #ffffff !important; margin: 0 0 15px 0; line-height: 1.3; }\n    .speras-hero-banner .subtitle { font-size: 18px; max-width: 850px; margin: 0 auto 20px auto; color: #cbd5e1 !important; line-height: 1.7; }\n    \n    \/* Comparison Table \/ Formatting *\/\n    .speras-table-wrapper { overflow-x: auto; 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box-sizing: border-box !important; }\n        .speras-pdp-container .speras-hero-banner { padding: 30px 15px !important; height: auto !important; }\n        \n        \/* 强制打散所有横向排版的左右图文模块，变更为上下单列 *\/\n        .speras-pdp-container div[style*=\"display: flex\"] { display: block !important; }\n        .speras-pdp-container div[style*=\"flex: 1\"] { \n            display: block !important; \n            width: 100% !important; \n            max-width: 100% !important; \n            margin-bottom: 20px !important; \n            padding: 15px !important; \n            height: auto !important; \n            box-sizing: border-box !important; \n        }\n\n        \/* 强制释放所有文本元素，消灭文字重叠和不换行现象 *\/\n        .speras-pdp-container h1, .speras-pdp-container h2, .speras-pdp-container h3, \n        .speras-pdp-container p, .speras-pdp-container span, .speras-pdp-container li,\n        .speras-pdp-container summary, .speras-pdp-container table, .speras-pdp-container th, .speras-pdp-container td {\n            white-space: normal !important;\n            word-wrap: break-word !important;\n            word-break: break-word !important;\n            overflow-wrap: anywhere !important; \n            line-height: 1.5 !important;\n            height: auto !important;\n            max-height: none !important;\n        }\n        \n        .speras-pdp-container h1 { font-size: 24px !important; line-height: 1.4 !important; margin-bottom: 15px !important; }\n        .speras-pdp-container .speras-section-title { font-size: 22px !important; line-height: 1.4 !important; margin-top: 30px !important; margin-bottom: 20px !important; }\n        .speras-pdp-container img { max-width: 100% !important; height: auto !important; }\n    }\n\u003c\/style\u003e\n\u003cdiv class=\"speras-pdp-container\"\u003e\n\u003cdiv class=\"speras-hero-banner\"\u003e\n\u003cspan style=\"display: inline-block; background: #ea580c; color: #fff; padding: 6px 18px; border-radius: 30px; font-size: 14px; font-weight: 800; text-transform: uppercase; letter-spacing: 1px; margin-bottom: 15px;\"\u003eExtreme Environment Power Cell\u003c\/span\u003e\n\u003ch1\u003eSPERAS LTH45 21700 Battery – 4500mAh Cold Resistant Power\u003c\/h1\u003e\n\u003cp class=\"subtitle\"\u003e🔋 Designed for extreme environments, the \u003cspan style=\"color: #ea580c; font-weight: bold;\"\u003eSPERAS LTH45 Lithium Battery\u003c\/span\u003e delivers reliable performance even in freezing conditions. Compared to standard \u003cstrong\u003e21700 lithium batteries\u003c\/strong\u003e, it performs up to \u003cstrong\u003e3× better at \u003cspan style=\"color: rgb(255, 42, 0);\"\u003e-40°C\/°F\u003c\/span\u003e\u003c\/strong\u003e, making it an ideal power solution for outdoor gear, tactical flashlights, and harsh-weather applications.\u003c\/p\u003e\n\u003cdiv style=\"display: flex; justify-content: center; gap: 15px; flex-wrap: wrap; margin-top: 15px;\"\u003e\n\u003cspan style=\"background: rgba(255,255,255,0.1); color: #fff; padding: 6px 16px; border-radius: 20px; font-size: 13px;\"\u003e❄️ Rated to -40°C\u003c\/span\u003e \u003cspan style=\"background: rgba(255,255,255,0.1); color: #fff; padding: 6px 16px; border-radius: 20px; font-size: 13px;\"\u003e🔋 4500mAh Capacity\u003c\/span\u003e \u003cspan style=\"background: rgba(255,255,255,0.1); color: #fff; padding: 6px 16px; border-radius: 20px; font-size: 13px;\"\u003e🔌 Integrated USB-C\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch2 class=\"speras-section-title\"\u003eWhy Choose SPERAS LTH45?\u003c\/h2\u003e\n\u003cdiv style=\"background: #fafafa; padding: 30px; border-radius: 12px; border: 1px solid #e2e8f0; margin-bottom: 50px;\"\u003e\n\u003cul style=\"font-size: 17px; color: #475569; padding-left: 20px; line-height: 2.2; margin-bottom: 0; font-weight: 500;\"\u003e\n\u003cli\u003e❄️ Outstanding performance in extreme cold (-40°C \/ -40°F)\u003c\/li\u003e\n\u003cli\u003e🔋 High-capacity 4500mAh for longer runtime\u003c\/li\u003e\n\u003cli\u003e⚡ Stable output for high-drain devices (10A Max)\u003c\/li\u003e\n\u003cli\u003e🔌 Convenient direct USB-C charging support\u003c\/li\u003e\n\u003cli\u003e🛠️ Reliable SPERAS quality and safety standards\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display: flex; flex-wrap: wrap; align-items: center; margin-bottom: 40px; background: #fafafa; border-radius: 8px; overflow: hidden; border: 1px solid #f0f0f0;\"\u003e\n\u003cdiv style=\"flex: 1 1 300px; padding: 30px;\"\u003e\n\u003ch3 style=\"font-size: 22px; font-weight: bold; color: #ea580c; margin-top: 0;\"\u003eDefeat the Freeze: Rated to -40°C\u003c\/h3\u003e\n\u003cp style=\"font-size: 16px; margin-bottom: 15px;\"\u003eStandard lithium batteries fail quickly when the temperature drops. The SPERAS LTH45 is specifically engineered for low-temperature environments, performing reliably where other power cells shut down.\u003c\/p\u003e\n\u003cp style=\"font-size: 16px; margin-bottom: 0;\"\u003eAs shown in the performance data, LTH45 delivers stable voltage and runtime even at \u003cstrong\u003e-40°C (-40°F)\u003c\/strong\u003e, ensuring your tactical lights and outdoor gear stay running when you need them most.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex: 1 1 300px; padding: 20px;\"\u003e\u003cimg style=\"width: 100%; border-radius: 8px; display: block; margin: 0 auto;\" alt=\"21700 battery cold weather performance graph SPERAS LTH45 vs standard battery at -40C\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0605\/4549\/9313\/files\/SPERAS_LTH45_4500mAh_21700_Low_Temperature_Lithium_Battery-2_600x600.jpg?v=1770101840\" class=\"speras-zoom\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display: flex; flex-wrap: wrap; align-items: center; margin-bottom: 40px; background: #fafafa; border-radius: 8px; overflow: hidden; flex-direction: row-reverse; border: 1px solid #f0f0f0;\"\u003e\n\u003cdiv style=\"flex: 1 1 300px; padding: 30px;\"\u003e\n\u003ch3 style=\"font-size: 22px; font-weight: bold; color: #ea580c; margin-top: 0;\"\u003e4500mAh Capacity \u0026amp; Integrated USB-C Charging\u003c\/h3\u003e\n\u003cp style=\"font-size: 16px; margin-bottom: 15px;\"\u003eWith a robust \u003cstrong\u003e4500mAh capacity\u003c\/strong\u003e, this battery provides stable energy output (5A Continuous \/ 10A Max) for high-performance flashlights and devices that demand reliable energy in harsh conditions.\u003c\/p\u003e\n\u003cp style=\"font-size: 16px; margin-bottom: 0;\"\u003e🔋 The innovative integrated \u003cstrong\u003eUSB-C charging port\u003c\/strong\u003e eliminates the need for a separate charger, offering a convenient and efficient recharging method wherever power is available.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex: 1 1 300px; padding: 20px;\"\u003e\u003cimg style=\"width: 100%; border-radius: 8px; display: block; margin: 0 auto;\" alt=\"SPERAS LTH45 4500mAh 21700 battery wrap showcasing integrated USB-C charging port\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0605\/4549\/9313\/files\/SPERAS_LTH45_4500mAh_21700_Low_Temperature_Lithium_Battery-1_600x600.jpg?v=1770101828\" class=\"speras-zoom\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch2 class=\"speras-section-title\"\u003eEngineered Specifications: Technical Details\u003c\/h2\u003e\n\u003cdiv class=\"speras-table-wrapper\"\u003e\n\u003ctable class=\"speras-table\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd class=\"speras-highlight-col\"\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eSPERAS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"speras-highlight-col\"\u003eModel\u003c\/td\u003e\n\u003ctd\u003eLTH45\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"speras-highlight-col\"\u003eBattery Type\u003c\/td\u003e\n\u003ctd\u003e21700 Lithium Battery\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"speras-highlight-col\"\u003eCapacity\u003c\/td\u003e\n\u003ctd\u003e4500mAh\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"speras-highlight-col\"\u003eVoltage\u003c\/td\u003e\n\u003ctd\u003e3.6V (Power: 12.6Wh)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"speras-highlight-col\"\u003eCharging\u003c\/td\u003e\n\u003ctd\u003eUSB-C (1A)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"speras-highlight-col\"\u003eContinuous Output\u003c\/td\u003e\n\u003ctd\u003e5A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"speras-highlight-col\"\u003eMax Output\u003c\/td\u003e\n\u003ctd\u003e10A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"speras-highlight-col\"\u003eWorking Temperature\u003c\/td\u003e\n\u003ctd\u003e-40°C to 60°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"speras-highlight-col\"\u003eWarranty\u003c\/td\u003e\n\u003ctd\u003e1 Year\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"speras-highlight-col\"\u003eLength\u003c\/td\u003e\n\u003ctd\u003e75mm (+0.3~0.5mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"speras-highlight-col\"\u003eDiameter\u003c\/td\u003e\n\u003ctd\u003e21.4mm (+0.1~0.15mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"speras-highlight-col\"\u003eNet Weight\u003c\/td\u003e\n\u003ctd\u003e71.1g (Gross: 78.8g)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: #fff; padding: 40px 20px; border: 2px solid #ea580c; border-radius: 12px; text-align: center; margin: 50px 0; box-shadow: 0 10px 25px rgba(234, 88, 12, 0.08);\"\u003e\n\u003ch2 style=\"font-size: 28px; color: #0f172a; margin-top: 0; margin-bottom: 15px; font-weight: 900;\"\u003eEquip Your Extreme Gear\u003c\/h2\u003e\n\u003cp style=\"font-size: 16px; color: #475569; margin-bottom: 25px; max-width: 650px; margin-left: auto; margin-right: auto;\"\u003esettle for standard power cells that fail in the cold. Upgrade to the SPERAS LTH45 and experience 3× better performance at -40°C with integrated USB-C convenience.\u003c\/p\u003e\n\u003ca style=\"display: inline-block; background: #ea580c; color: #fff; padding: 16px 40px; border-radius: 8px; font-weight: 900; font-size: 18px; text-transform: uppercase; box-shadow: 0 6px 20px rgba(234, 88, 12, 0.35); text-decoration: none; transition: background 0.3s ease;\" href=\"#top\"\u003e🛒 Select Options \u0026amp; Add To Cart\u003c\/a\u003e\n\u003cp style=\"font-size: 14px; color: #64748b; margin-top: 15px; font-weight: bold;\"\u003eSecure Checkout | Speras Official Warranty\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch2 class=\"speras-section-title\"\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cdiv style=\"margin-bottom: 40px;\"\u003e\n\u003cdetails open=\"\" style=\"background-color: #fff; padding: 18px 20px; margin-bottom: 15px; border: 1px solid #cbd5e1; border-radius: 8px; cursor: pointer;\"\u003e\n\u003csummary style=\"font-size: 18px; font-weight: bold; color: #0f172a; outline: none;\"\u003eCan this lithium battery be used in extreme cold weather?\u003c\/summary\u003e\n\u003cp style=\"margin-top: 12px; font-size: 16px; color: #475569; line-height: 1.6;\"\u003eYes, the SPERAS LTH45 is specifically designed for low-temperature environments and performs reliably even at -40°C \/ -40°F.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails open=\"\" style=\"background-color: #fff; padding: 18px 20px; margin-bottom: 15px; border: 1px solid #cbd5e1; border-radius: 8px; cursor: pointer;\"\u003e\n\u003csummary style=\"font-size: 18px; font-weight: bold; color: #0f172a; outline: none;\"\u003eIs this battery compatible with all 21700 devices?\u003c\/summary\u003e\n\u003cp style=\"margin-top: 12px; font-size: 16px; color: #475569; line-height: 1.6;\"\u003eIt is compatible with most devices that support standard 21700 lithium batteries. However, it is a protected, long-cell (75mm), so always check your device's physical space and voltage specifications before use.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails style=\"background-color: #fff; padding: 18px 20px; margin-bottom: 15px; border: 1px solid #cbd5e1; border-radius: 8px; cursor: pointer;\"\u003e\n\u003csummary style=\"font-size: 18px; font-weight: bold; color: #0f172a; outline: none;\"\u003eDoes the battery support direct USB-C charging?\u003c\/summary\u003e\n\u003cp style=\"margin-top: 12px; font-size: 16px; color: #475569; line-height: 1.6;\"\u003eYes, the battery supports direct USB-C charging via the built-in port for convenient and efficient recharging.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails open=\"\" style=\"background-color: #fff; padding: 18px 20px; margin-bottom: 15px; border: 1px solid #cbd5e1; border-radius: 8px; cursor: pointer;\"\u003e\n\u003csummary style=\"font-size: 18px; font-weight: bold; color: #0f172a; outline: none;\"\u003eWhat devices is this battery best suited for?\u003c\/summary\u003e\n\u003cp style=\"margin-top: 12px; font-size: 16px; color: #475569; line-height: 1.6;\"\u003eThis battery is ideal for high-performance tactical flashlights, outdoor gear used by hikers and mountaineers, and any high-drain devices used in cold environments.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails open=\"\" style=\"background-color: #fff; padding: 18px 20px; margin-bottom: 15px; border: 1px solid #cbd5e1; border-radius: 8px; cursor: pointer;\"\u003e\n\u003csummary style=\"font-size: 18px; font-weight: bold; color: #0f172a; outline: none;\"\u003eIs it safe for high-drain applications?\u003c\/summary\u003e\n\u003cp style=\"margin-top: 12px; font-size: 16px; color: #475569; line-height: 1.6;\"\u003eYes, with a maximum output of 10A and a stable voltage curve, it is suitable for high-current devices requiring dependable performance.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003c\/div\u003e\n\u003cscript type=\"application\/ld+json\"\u003e\n    {\n      \"@context\": \"https:\/\/schema.org\",\n      \"@type\": \"FAQPage\",\n      \"mainEntity\": [{\n        \"@type\": \"Question\",\n        \"name\": \"Can this lithium battery be used in extreme cold weather?\",\n        \"acceptedAnswer\": {\n          \"@type\": \"Answer\",\n          \"text\": \"Yes, the SPERAS LTH45 is specifically designed for low-temperature environments and performs reliably even at -40°C \/ -40°F.\"\n        }\n      },{\n        \"@type\": \"Question\",\n        \"name\": \"Is this battery compatible with all 21700 devices?\",\n        \"acceptedAnswer\": {\n          \"@type\": \"Answer\",\n          \"text\": \"It is compatible with most devices that support standard 21700 lithium batteries. However, it is a protected, long-cell (75mm), so always check your device specifications before use.\"\n        }\n      },{\n        \"@type\": \"Question\",\n        \"name\": \"Does the battery support direct USB-C charging?\",\n        \"acceptedAnswer\": {\n          \"@type\": \"Answer\",\n          \"text\": \"Yes, the battery supports USB-C charging for convenient and efficient recharging.\"\n        }\n      },{\n        \"@type\": \"Question\",\n        \"name\": \"What devices is this battery best suited for?\",\n        \"acceptedAnswer\": {\n          \"@type\": \"Answer\",\n          \"text\": \"This battery is ideal for high-performance tactical flashlights, outdoor gear, and any devices used in cold environments.\"\n        }\n      },{\n        \"@type\": \"Question\",\n        \"name\": \"Is it safe for high-drain applications?\",\n        \"acceptedAnswer\": {\n          \"@type\": \"Answer\",\n          \"text\": \"Yes, with a maximum output of 10A, it is suitable for high-current devices requiring stable performance.\"\n        }\n      }]\n    }\n\u003c\/script\u003e\n\u003cdiv id=\"speras-lightbox\"\u003e\u003cimg alt=\"Enlarged product image\" id=\"speras-lightbox-img\"\u003e\u003c\/div\u003e\n\u003cscript\u003e\n    document.addEventListener(\"DOMContentLoaded\", function() {\n        var lightbox = document.getElementById('speras-lightbox');\n        var lightboxImg = document.getElementById('speras-lightbox-img');\n        var images = document.querySelectorAll('.speras-zoom');\n\n        if (lightbox \u0026\u0026 lightboxImg) {\n            images.forEach(function(img) {\n                img.addEventListener('click', function(e) {\n                    e.preventDefault();\n                    lightboxImg.src = this.src;\n                    lightbox.classList.add('active');\n                    document.body.style.overflow = 'hidden';\n                });\n            });\n\n            lightbox.addEventListener('click', function() {\n                lightbox.classList.remove('active');\n                document.body.style.overflow = '';\n                setTimeout(function() {\n                    lightboxImg.src = '';\n                }, 300);\n            });\n        }\n    });\n\u003c\/script\u003e\n\u003c\/div\u003e","brand":"SPERAS","offers":[{"title":"Black \/ SPERAS LTH45","offer_id":46633093922993,"sku":null,"price":28.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0605\/4549\/9313\/files\/SPERASLTH454500mAh21700LowTemperatureLithiumBattery-1.jpg?v=1770101850","url":"https:\/\/sperasflashlight.com\/products\/speras-lth45-21700-lithium-batter-cold-weather-battery-flashlight-battery","provider":"Speras Light","version":"1.0","type":"link"}