WO03XL Battery for HP Split 13-M 13T-M000 X2 HSTNN-IB5I 725496-1B1 11.1V Product Description (Conversion-Optimized with SEO Keywords) Genuine WO03XL Replacement Battery for HP Split 13/X2 & Pavilion 13 Detachables Revive the versatility of your 2-in-1 detachable. This brand new, OEM-specification Li-ion battery is a direct replacement for the original WO03XL (HSTNN-IB5I), designed to deliver reliable power and restored mobility for your HP Split 13, 13T-M000, X2, and Pavilion 13-P100 series detachable laptops.