{"product_id":"kastar-2-pack-battery-replacement-for-honeywell-lynx-high-capacity","title":"Kastar 2-Pack Battery Replacement for Honeywell Lynx - High Capacity","description":"\u003cp\u003eIn this review the Kastar 2-Pack Battery Replacement is evaluated for owners of Honeywell and ADT Honeywell alarm panels who need dependable backup power. The bottom line: this Ni-MH 7.2V, 3700mAh replacement is aimed at users who want longer runtime and proven cycle life for Honeywell Lynx series units; its highest appeal is the large capacity and safety features that reduce the need for frequent battery swaps. For anyone running Lynx 5100, 5200 or similar panels, it offers a simple, high-capacity swap with familiar dimensions and good durability.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh Capacity:\u003c\/strong\u003e The 3700mAh rating provides noticeably longer run time for alarm panels compared with many standard replacements, reducing maintenance intervals.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible Form Factor:\u003c\/strong\u003e At about 3.94 in x 2.68 in x 0.68 in, the pack matches the size expected by Honeywell Lynx series and related modules, simplifying installation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNi-MH Chemistry:\u003c\/strong\u003e Uses environmentally friendlier Ni-MH cells that avoid heavy metals like Hg, Cd, and Pb while delivering reliable discharge performance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExtended Cycle Life:\u003c\/strong\u003e Kastar adds a protective additive to the cathode to limit material degradation so cells can last up to roughly 1,200 recharge cycles under proper use.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLow Self-Discharge:\u003c\/strong\u003e An embedded seal structure reduces self-discharge so the batteries hold charge longer when the alarm is idle or unused.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSafety Construction:\u003c\/strong\u003e DBCK steel shell and internal protections reduce the risk of rupture or explosion from overpressure, improving long-term safety in a home security enclosure.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWho It's For\u003c\/h2\u003e\n\u003cp\u003eThis pack is for homeowners, small businesses and security technicians who maintain Honeywell Lynx series panels and compatible ADT Honeywell units and want a higher-capacity, longer-lasting replacement. It is particularly suitable where longer standby time and fewer replacements are priorities, such as vacation homes or rarely serviced systems.\u003c\/p\u003e\n\u003cp\u003eThose who should look elsewhere include users who require factory-branded OEM batteries with original part numbering for warranty tracking, or systems that specify a different voltage or physical configuration; verify the model compatibility list for specific panel models before purchase.\u003c\/p\u003e\n\u003ch2\u003ePros \u0026amp; Cons\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003ePros\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eHigh 3700mAh capacity delivers extended runtime for alarm panels compared with standard cells.\u003c\/li\u003e\n\u003cli\u003eNi-MH chemistry is more eco-friendly and avoids toxic heavy metals.\u003c\/li\u003e\n\u003cli\u003eDesigned with safety features and a robust steel shell to reduce failure modes in enclosed installations.\u003c\/li\u003e\n\u003cli\u003eLow self-discharge helps preserve charge during long idle periods.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eNot an OEM-labeled Honeywell pack, which may matter for users who prefer manufacturer-branded parts.\u003c\/li\u003e\n\u003cli\u003ePhysical dimensions are specific; users must confirm fit in non-standard enclosures before purchase.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eBattery Type\u003c\/td\u003e\n\u003ctd\u003eNi-MH\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVoltage\u003c\/td\u003e\n\u003ctd\u003e7.2V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCapacity\u003c\/td\u003e\n\u003ctd\u003e3700mAh\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e3.94 in x 2.68 in x 0.68 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCycle Life\u003c\/td\u003e\n\u003ctd\u003eUp to 1,200 cycles (manufacturer guidance)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSafety Features\u003c\/td\u003e\n\u003ctd\u003eDBCK steel shell, cathode additive protection\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch2\u003eOur Verdict\u003c\/h2\u003e\n\u003cp\u003eThe Kastar 2-Pack is a practical, value-minded replacement for Honeywell Lynx and compatible ADT Honeywell alarm panels when longer runtime and improved cycle life are priorities. It is a good buy for users comfortable fitting a third-party high-capacity Ni-MH pack who want fewer battery replacements and added safety features without paying for OEM labeling.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eWill this battery fit my Honeywell Lynx 5200?\u003c\/strong\u003e\u003cbr\u003eYes, it is listed compatible with Lynx 5200 and several Lynx models, but confirm the physical dimensions and connector match your unit before installation.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow long will the battery last in normal use?\u003c\/strong\u003e\u003cbr\u003eRuntime depends on system draw, but the 3700mAh capacity and low self-discharge design provide noticeably longer standby life than many standard replacements.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs the chemistry safe for home use?\u003c\/strong\u003e\u003cbr\u003eYes, the Ni-MH cells avoid heavy metals like Hg, Cd and Pb and include a steel shell and cathode protection to reduce degradation and pressure-related risks.\u003c\/p\u003e","brand":"Kastar","offers":[{"title":"Default Title","offer_id":48199777485019,"sku":"B09N8Z1D58","price":39.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/71cwNSbSFcL._AC_SL1500.jpg?v=1770268949","url":"https:\/\/gearmusthave.com\/products\/kastar-2-pack-battery-replacement-for-honeywell-lynx-high-capacity","provider":"GearMustHave","version":"1.0","type":"link"}