HP MR03 Original Battery

Core Specifications

• Part Numbers: MR03, MR03XL, TPN‑Q135, 740005‑121, 740722‑001, HSTNN‑IB5T, MR03028‑CL
• Chemistry: Lithium‑Ion (Li‑Ion), 3‑cell configuration 
• Voltage: Nominal 10.8 V (compatible with 11.1 V systems) 
• Capacity: Typically 2,200 mAh (~24 Wh), though 2,600 mAh (~28 Wh) versions are known
• Dimensions & Weight: ~207 × 31–33 × 22 mm, ~230 g

Compatibility

Fits HP Pavilion TouchSmart and x360 10″ series, including:

• Pavilion TouchSmart 10‑e000*, 10‑e001*, 10‑e002*, 10‑e003*, etc.
• Pavilion x360 10.1″ models
• Other listings confirm compatibility with the “HP Pavilion 10 TouchSmart” line and early Envy x360 devices

Performance & Runtime

• Expected runtime: ~2–4.5 hours for general use; actual runtime varies with capacity (2,600 mAh offers longer use)
• Recharge cycles: Rated ~500 cycles

Safety Features & Certifications

• Includes protection circuitry for over-charge, over-discharge, short-circuit, and temperature control
• Compliance with ISO 9001, UN38.3, RoHS, IATA, and other international safety standards

Installation & Maintenance

• Initial charge: Fully charge new battery before first use
• Regular top-ups recommended before reaching 20% to prolong lifespan
• Storage tips: If unused for a while, store at ~40% charge and in cool environments (15–25 °C); recharge monthly