⚠️ IMPORTANT BUYING NOTICE:

• TA03XL Block Internal Layout Blueprint: This professional-grade 11.40V Lithium-Polymer (Li-Polymer) internal replacement battery pack features a specialized dense-profile architecture measuring exactly 197.80 x 102.80 x 7.10 mm and weighing an agile 222.00 g. It seats securely inside the designated sub-frame battery bay without placing upward stress on your internal hardware components, preventing palm rest warps or trackpad button stiffness.

• Model Generation & Series Verification (Crucial Rule): This custom power module is engineered exclusively for specific fourth-generation (G4) premium enterprise configurations, including the HP EliteBook 840 G4, 745 G4, 755 G4, 848 G4, and 855 G4. Please note that it will not fit older generations (such as EliteBook 840 G1, G2, or G3 lines) or newer generations (such as EliteBook 840 G5 or G6), which rely on different internal shapes, casing thicknesses, connector locations, and fastening brackets. Before completing your purchase, unscrew your notebook's bottom cover panel to physically verify that your original stock battery explicitly displays compatibility parts like TA03XL, TA03051XL, HSTNN-LB7J, or 854047-1C1.
  
  

⚡ DEPENDABLE MOBILITY & SUSTAINED RUNTIME PERFORMANCE RESTORATION: Recover the original wireless freedom and active multi-tasking endurance of your corporate workspace notebook with this brand-new, premium replacement internal battery engine. Engineered around a highly stable 11.40V power routing architecture and packed with a high-density capacity of 4000 mAh (45.50 Wh), this battery module ensures low internal resistance and consistent voltage flow. It easily handles multi-tab web browsing, secure corporate networks, data parsing, and everyday office workflows. It serves as an immediate remedy to correct common age-related hardware degradation symptoms, including sharp percentage indicator drops, thermal processing throttling under heavy application bursts, or an immediate system blackout whenever you disconnect your factory AC wall charger. Outfitted with an on-board smart protection chipset array, it continuously safeguards your premium business machine from over-charge, over-discharge, unexpected short circuits, and localized internal thermal shifts.

Compatible Original Part Numbers: TA03XL, TA03, TA03051XL, HSTNN-LB7J, HSTNN-172C-4, HSTNN-175C-5, 854047-1C1, 854047-271, 854133-850, 915230-855

Comprehensive Laptop Compatibility List:

HP EliteBook Flagship 700 & 800 Enterprise G4 Series

• HP EliteBook 14-Inch Sub-Frames: EliteBook 840 G4, EliteBook 745 G4, EliteBook 848 G4 Series

• HP EliteBook 15.6-Inch Sub-Frames: EliteBook 755 G4, EliteBook 855 G4 Series
  
  

Disclaimer: The batteries and other products supplied by our Company are [replacement for] sold for use with certain products of computer manufacturers, and any reference to products or trademarks of such companies is purely for the purpose of identifying the computers with which our products [are replacement for] may be used. Our Company and this Website are neither affiliated with, authorized by, licensed by, distributors for, nor related in any way to these computer manufacturers, nor are the products offered for sale through our Website manufactured by or sold with the authorization of the manufacturers with which our products [are replacement for] may be used