{"product_id":"kastar-replacement-battery-pack-3-7v-1900mah-2-pack","title":"Kastar Replacement Battery Pack 3.7V 1900mAh (2-Pack)","description":"\u003cp\u003e\u003cstrong\u003eKastar 2-pack replacement lithium-ion batteries (3.7V, 1900mAh) designed to restore power to compatible URC universal remote controls quickly and reliably.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eIf your URC remote has grown sluggish or stopped responding, these Kastar replacement cells are sized and specified to match the original rechargeable pack used in many MX and X-series remotes. This listing includes two high-density 1900mAh Li-ion batteries that fit the listed URC models and arrive ready to swap in for minimal downtime. They are intended as direct replacements for worn-out internal battery modules so you can avoid buying a new remote.\u003c\/p\u003e\n\n\u003ch3\u003eWill these batteries fit my URC remote model?\u003c\/h3\u003e\n\u003cp\u003eThese Kastar batteries are compatible with a broad range of URC universal remotes, including MX-series and several legacy models. Confirm the model printed on your remote or inside its battery compartment before ordering to ensure the connector and dimensions match.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eCompatible models: URC 11N09T \/ NC0910 \/ RLI-007-1 \/ LIT0404\u003c\/li\u003e\n  \u003cli\u003eAlso fits: URC MX-810, MX-880, MX-890, MX-950, MX-980, MX-990, MX-1200, and URC X-8\u003c\/li\u003e\n  \u003cli\u003eSold as a 2-pack so you can replace both cells at once if required\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow long will a single charge last compared to the original battery?\u003c\/h3\u003e\n\u003cp\u003eWith a 1900mAh capacity at 3.7V, these Li-ion cells are specified to approximate the original battery performance in typical remote use. Actual runtime depends on features like backlighting and RF\/IR transmission habits, but capacity parity means similar standby and active durations.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eRated capacity: 1900mAh for extended usage between charges\u003c\/li\u003e\n  \u003cli\u003eVoltage: 3.7V — matches standard URC rechargeable packs\u003c\/li\u003e\n  \u003cli\u003eBattery chemistry: lithium-ion for consistent discharge and recharge cycles\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow do I install these replacement batteries safely?\u003c\/h3\u003e\n\u003cp\u003eInstallation is straightforward for anyone comfortable opening the remote’s battery compartment or casing. Power down the remote, remove the old battery pack, note the connector orientation, and plug the new pack in with matching polarity. If the remote requires soldering or adhesive removal, follow manufacturer guidance or seek professional help.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eTurn off the remote and remove external screws if needed\u003c\/li\u003e\n  \u003cli\u003eDisconnect the old pack, then connect the Kastar pack with the same polarity\u003c\/li\u003e\n  \u003cli\u003eReassemble the housing and perform a full charge cycle before regular use\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat should I expect regarding safety and lifespan?\u003c\/h3\u003e\n\u003cp\u003eThese Kastar Li-ion batteries are designed for standard rechargeable device use, but like all lithium cells they should be handled and charged with compatible chargers and within recommended temperatures. Proper charging, avoiding deep discharges, and not exposing the pack to extreme heat will help preserve cycle life.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eUse only the remote’s recommended charging method and voltage\u003c\/li\u003e\n  \u003cli\u003eAvoid puncturing, shorting, or exposing batteries to high temperatures\u003c\/li\u003e\n  \u003cli\u003eReplace both batteries if the old pack shows swelling or leakage\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: This Kastar 2-pack is aimed at owners of compatible URC universal remotes who need a reliable, direct replacement for an aging internal battery. It’s suited to DIYers comfortable opening a remote housing, electronics repair shops replacing remote packs for customers, and anyone wanting to restore original battery capacity without replacing the entire remote. Check model compatibility before purchase and follow safe installation practices to maximize performance and lifespan.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Are these batteries the same voltage as the original URC pack?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. Each Kastar battery is 3.7V, matching the original URC rechargeable pack specifications.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Do I need tools to install the replacement batteries?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Basic tools may be needed to open the remote; some models require screwdrivers or gentle prying, but no soldering in most cases.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Kastar","offers":[{"title":"Default Title","offer_id":48412898623645,"sku":"B079Y1FXFF","price":19.02,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0766\/9596\/1757\/files\/kastar-front-packaging-remote-battery.jpg?v=1781252723","url":"https:\/\/nexoltic.com\/products\/kastar-replacement-battery-pack-3-7v-1900mah-2-pack","provider":"Nexoltic","version":"1.0","type":"link"}