{"product_id":"01av477-00ny493-77-77-laptop-battery-90wh-extended-runtime","title":"01AV477 00NY493 77+ 77++ Laptop Battery 90Wh - Extended Runtime","description":"\u003cp\u003eOur review of the 01AV477 00NY493 77+ 77++ laptop battery focuses on replacement power for Lenovo ThinkPad P50, P51 and P52 users who need reliable capacity without replacing the whole machine. This battery supplies a high-capacity 90Wh Li-ion pack in a 9-cell configuration, and the single biggest reason to consider it is the extended runtime it can restore to older mobile workstations. It is presented as 100% new from manufacturer, supports up to 500 recharge cycles, and includes guidance for initial conditioning to maximize lifespan.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh capacity:\u003c\/strong\u003e The 90Wh rating provides noticeably longer run time compared with lower-capacity replacements, so users can work away from power outlets for extended sessions.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible voltages:\u003c\/strong\u003e With nominal voltages of 11.25V and 11.4V listed, it matches the electrical requirements of several ThinkPad P50\/P51\/P52 variants for safe operation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWide compatibility:\u003c\/strong\u003e Labeled to replace many part numbers, it fits a range of P50, P51 and P52 model series so owners of these laptops can often swap batteries without searching multiple SKUs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e9-cell chemistry:\u003c\/strong\u003e The 9-cell Li-ion construction balances energy density and reliability for workstation-style laptops that demand sustained performance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer new:\u003c\/strong\u003e Sold as 100% new from the manufacturer, it arrives as a fresh battery rather than a refurbished unit, which may reassure buyers concerned about cycle history.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWho It's For\u003c\/h2\u003e\n\u003cp\u003eThis battery is aimed at professionals and technicians who use Lenovo ThinkPad P50, P51 or P52 series laptops and need to restore original-like battery life without upgrading the whole system. It makes sense for mobile engineers, designers and anyone who spends hours away from a power source and values consistent runtime.\u003c\/p\u003e\n\u003cp\u003eIt is not ideal for users whose specific model is not listed among the compatible series, or for buyers who require manufacturer warranty parity from an official brand channel; compatibility reports from customers are mixed, so confirm your exact model and part number 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 90Wh capacity delivers extended on-battery time for intensive tasks.\u003c\/li\u003e\n\u003cli\u003eList of replaced part numbers and series increases the chance of a direct fit for many P50\/P51\/P52 units.\u003c\/li\u003e\n\u003cli\u003eRated for up to 500 recharge cycles when used and conditioned per instructions, suggesting reasonable long-term durability.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSome customers report compatibility issues with specific P50 units, so model verification is necessary before buying.\u003c\/li\u003e\n\u003cli\u003eActual runtime varies with workload and settings, so heavy users may see less than expected battery life.\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\u003eLi-ion\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVoltage\u003c\/td\u003e\n\u003ctd\u003e11.25V \/ 11.4V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCapacity\u003c\/td\u003e\n\u003ctd\u003e90Wh\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCells\u003c\/td\u003e\n\u003ctd\u003e9-cell\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible models\u003c\/td\u003e\n\u003ctd\u003eLenovo ThinkPad P50, P51, P52 series\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eReplace part numbers\u003c\/td\u003e\n\u003ctd\u003e01AV477, 00NY490-00NY493, 01AV495\/01AV496, SB10K97634\/35, L17L6P51\/L17M6P51\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCycle life\u003c\/td\u003e\n\u003ctd\u003eUp to 500 recharge cycles\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch2\u003eOur Verdict\u003c\/h2\u003e\n\u003cp\u003eThe 01AV477 00NY493 77+ 77++ 90Wh battery is a practical value for ThinkPad P50\/P51\/P52 owners who need extended on-battery runtime and a manufacturer-new replacement. It provides a large 90Wh capacity and a long expected cycle life, but buyers should verify exact model compatibility because a few users experienced fit issues. For confirmed-fit systems, this battery restores mobility at a lower cost than system replacement.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eWill this battery fit my ThinkPad P50?\u003c\/strong\u003e\u003cbr\u003eCheck your laptop's original part number or service tag and compare it to the listed replace part numbers; some customers reported mixed compatibility so confirmation is recommended.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow long will the battery last on a full charge?\u003c\/strong\u003e\u003cbr\u003eActual runtime depends on workload and settings, but the 90Wh capacity should offer noticeably longer use than lower-capacity replacements for typical office and light multimedia tasks.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAre there conditioning steps for first use?\u003c\/strong\u003e\u003cbr\u003eYes, follow the seller guidance: discharge to about 5% (not 0%) then charge to 95% and repeat for 3-4 cycles to help condition the pack.\u003c\/p\u003e","brand":"RDSJ","offers":[{"title":"Default Title","offer_id":48639157338331,"sku":"B08C521HK1","price":40.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/71D3A2Ehy_L._AC_SL1500.jpg?v=1778546334","url":"https:\/\/gearmusthave.com\/products\/01av477-00ny493-77-77-laptop-battery-90wh-extended-runtime","provider":"GearMustHave","version":"1.0","type":"link"}