{"product_id":"ghu-48wh-replacement-battery-for-lenovo-thinkpad-t400-r400","title":"GHU 48Wh Replacement Battery for Lenovo ThinkPad T400 R400","description":"\u003cp\u003e\u003cstrong\u003eGHU's 33+ 48Wh replacement battery restores portable power for older Lenovo ThinkPad models like the T400, R400, R61 and T61 so you can work unplugged again.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eDesigned as a direct replacement for factory packs, this GHU battery delivers 48 Wh (approximately 4400 mAh) of capacity and fits many legacy IBM\/Lenovo part numbers (including 43R2499, 42T4644, 41U3198, 42T4677 and others). It’s built to physically match the original battery bay and provide predictable run time and charging behavior on compatible 14-inch widescreen ThinkPad notebooks.\u003c\/p\u003e\n\n\u003ch3\u003eWill this battery physically fit my Lenovo T400 or R400?\u003c\/h3\u003e\n\n\u003cp\u003eYes — the GHU 33+ battery is made to the same dimensions and connector layout as the original packs used in the T400, R400, R61 and T61 families. It is compatible with many OEM part numbers so installation is plug-and-play on matching models.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eFits Lenovo ThinkPad models: T400, R400, R61, T61 and compatible variants.\u003c\/li\u003e\n  \u003cli\u003eCross-references OEM numbers like 43R2499, 42T5225, 41U3196 and more.\u003c\/li\u003e\n  \u003cli\u003eDesigned for 14-inch widescreen ThinkPad notebooks.\u003c\/li\u003e\n  \u003cli\u003eConnector and latch align with original battery bays for easy swap-in.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow much run time and power can I expect from the 48 Wh GHU battery?\u003c\/h3\u003e\n\n\u003cp\u003eThe pack provides 48 watt-hours (about 4400 mAh), which gives reliable runtime depending on your system configuration and workload. Light web browsing and document editing will achieve several hours; heavier tasks or high brightness will reduce that time proportionally.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eRated capacity: 48 Wh \/ ~4400 mAh for consistent energy delivery.\u003c\/li\u003e\n  \u003cli\u003eSuitable for typical productivity use — email, office apps, web tasks.\u003c\/li\u003e\n  \u003cli\u003eActual life varies with CPU load, screen brightness, and peripherals.\u003c\/li\u003e\n  \u003cli\u003eFast-charge compatible to shorten time between sessions.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eIs the GHU replacement battery safe and reliable?\u003c\/h3\u003e\n\n\u003cp\u003eGHU batteries undergo safety testing to meet common product safety standards and are manufactured with protection circuits to guard against overcharge and short-circuit conditions. These measures help ensure predictable behavior when used with approved Lenovo ThinkPad systems.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eBuilt-in protection circuitry for stable charging and discharging.\u003c\/li\u003e\n  \u003cli\u003eManufactured and tested to recognized safety benchmarks.\u003c\/li\u003e\n  \u003cli\u003eIntended as a direct replacement for compatible models; follow manufacturer charging guidelines.\u003c\/li\u003e\n  \u003cli\u003eInstall by powering down and removing the original battery first for a safe swap.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow easy is installation and setup on my ThinkPad?\u003c\/h3\u003e\n\n\u003cp\u003eInstallation is straightforward: power off the notebook, unlock and slide out the original pack, then align and snap the GHU battery into place. The laptop will recognize the new battery and report charge status via the operating system or BIOS battery indicator.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eNo special tools required — standard battery latch removal.\u003c\/li\u003e\n  \u003cli\u003eImmediate plug-and-play recognition by ThinkPad power management.\u003c\/li\u003e\n  \u003cli\u003eSupports both AC charging and standard power management features.\u003c\/li\u003e\n  \u003cli\u003eShip-ready with clear label and orientation marking for correct insertion.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho this is for: The GHU 33+ 48Wh replacement battery is aimed at owners of older Lenovo ThinkPad T400, R400, R61 and T61 laptops who need a reliable, OEM-compatible power pack to restore unplugged use. It’s ideal for professionals, students, and technicians maintaining legacy ThinkPad systems who want a safe, straightforward replacement with familiar fit, a clear capacity rating, and broad compatibility across legacy part numbers.\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: Which Lenovo models does this battery support?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: It supports ThinkPad T400, R400, R61 and T61 families and cross-references OEM numbers like 43R2499 and 42T5225.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: What are the battery capacity and expected runtime?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Rated at 48 Wh (about 4400 mAh); runtime varies by workload but is suitable for several hours of typical productivity use.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"GHU","offers":[{"title":"Default Title","offer_id":48413429858461,"sku":"B01N7O4OCB","price":52.58,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0766\/9596\/1757\/files\/ghu-front-view-packaging.jpg?v=1781265307","url":"https:\/\/nexoltic.com\/products\/ghu-48wh-replacement-battery-for-lenovo-thinkpad-t400-r400","provider":"Nexoltic","version":"1.0","type":"link"}