{"product_id":"artisan-power-replacement-battery-for-cisco-8821-and-8821-ex-2100","title":"Artisan Power Replacement Battery for Cisco 8821 and 8821-EX - 2100","description":"\u003cp\u003eIn this review the Artisan Power replacement battery is evaluated as a direct swap for Cisco 8821 and 8821-EX handsets. The bottom line: this pack is for business users and IT teams who need a higher-capacity, certified replacement to restore reliable talk time without replacing handsets. The reviewer found the extended 2100 mAh capacity and UL\/UN safety certifications to be the primary reasons to choose this cell, plus a user-friendly pull tab that makes installation quick and foolproof.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eExtended capacity:\u003c\/strong\u003e The 2100 mAh rating delivers noticeably longer talk and standby time compared with older or depleted OEM cells, reducing mid-shift swaps.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSafety certified:\u003c\/strong\u003e UL 2054 and UN 38.3 certification provide reassurance against overheating and transit hazards for workplace deployments.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible voltage:\u003c\/strong\u003e The DC 3.8 Volt design matches the original phone requirements so it works with existing Cisco 8821 charging stations and docks.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuality cells:\u003c\/strong\u003e The lithium ion cells are made in Japan, which is associated with consistent performance and longevity in repeated charge cycles.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSimple installation:\u003c\/strong\u003e The included easy pull tab makes battery replacement fast and reduces the chance of misalignment when installing into a handset.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eWho It's For\u003c\/h2\u003e\u003cp\u003eThis replacement battery is best for businesses, maintenance techs, and heavy handset users who need to restore or extend the usable runtime of Cisco 8821 and 8821-EX phones without buying new devices. It is especially useful where handsets are in continuous use and longer talk time per charge improves workflow.\u003c\/p\u003e\u003cp\u003eUsers who require manufacturer warranty support tied to original branded batteries or who need a built-in battery option should consider OEM service channels instead. For most office and industrial deployments, this aftermarket pack offers a practical, cost-effective alternative.\u003c\/p\u003e\u003ch2\u003ePros \u0026amp; Cons\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003ePros\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eHigher 2100 mAh capacity increases time between charges for real-world phone use.\u003c\/li\u003e\n\u003cli\u003eUL 2054 and UN 38.3 certification addresses safety concerns for shipping and operation.\u003c\/li\u003e\n\u003cli\u003eWorks with existing Cisco 8821 chargers and docks, avoiding accessory replacements.\u003c\/li\u003e\n\u003cli\u003eEasy pull tab speeds installation and reduces downtime when swapping batteries.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eAs an aftermarket replacement, some organizations may prefer OEM-branded batteries for warranty alignment.\u003c\/li\u003e\n\u003cli\u003ePhysical dimensions and fit are implied to match the phone, but buyers should confirm compatibility before ordering.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eArtisan Power\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel replacement for\u003c\/td\u003e\n\u003ctd\u003eCisco 8821 and 8821-EX\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCapacity\u003c\/td\u003e\n\u003ctd\u003e2100 mAh\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVoltage\u003c\/td\u003e\n\u003ctd\u003eDC 3.8 Volt\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCertifications\u003c\/td\u003e\n\u003ctd\u003eUL 2054, UN 38.3\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCell origin\u003c\/td\u003e\n\u003ctd\u003eJapan\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch2\u003eOur Verdict\u003c\/h2\u003e\u003cp\u003eThe Artisan Power 2100 mAh replacement is a practical, value-oriented choice for restoring battery life on Cisco 8821 and 8821-EX phones. With higher capacity, recognized safety certifications, and an easy install pull tab, it suits office and industrial environments needing reliable runtime without replacing handsets.\u003c\/p\u003e\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eWill this battery fit my Cisco 8821 phone?\u003c\/strong\u003e\u003cbr\u003eYes, it is designed as a replacement for Cisco 8821 and 8821-EX phones and works with compatible Cisco 8821 chargers.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the battery safe for shipping and use?\u003c\/strong\u003e\u003cbr\u003eYes, the pack is UL 2054 listed and certified to UN 38.3 standards for lithium ion battery safety.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow difficult is installation?\u003c\/strong\u003e\u003cbr\u003eThe included easy pull tab lets most users install the battery in seconds without tools.\u003c\/p\u003e","brand":"Artisan Power","offers":[{"title":"Default Title","offer_id":48244191953115,"sku":"B07612T1CT","price":43.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/51o40x7fXjL._AC_SL1000.jpg?v=1770975805","url":"https:\/\/gearmusthave.com\/products\/artisan-power-replacement-battery-for-cisco-8821-and-8821-ex-2100","provider":"GearMustHave","version":"1.0","type":"link"}