Astrum Replacement Battery for HP EliteBook & ZBook Series – 11.4V 4000mAh Li-Polymer

SKU: ABT-HPCS03 | 12-Month Warranty | High Capacity | Certified Safe Extended Power for HP EliteBook & ZBook Series – Reliable Performance for Work and Business

Revitalize your HP EliteBook or ZBook laptop with the Astrum 11.4V 4000mAh Replacement Battery, engineered for seamless compatibility and extended runtime. Featuring Li-Polymer technology, CE/RoHS certifications, and advanced safety protections, this battery delivers dependable power for professionals, creatives, and everyday users.

🔥 Key Features

✔ High Capacity – 4000mAh for longer unplugged productivity and entertainment ✔ Universal Compatibility – Perfect fit for HP EliteBook 840/848/850 G3 & G4, 745/755 G3 & G4, and ZBook 15u G3 models ✔ Li-Polymer Technology – Lightweight, efficient, and resistant to memory effect ✔ Multi-Protection Circuit – Safeguards against overcharging, overheating, and short circuits ✔ Certified Safe – CE and RoHS certified for quality and environmental compliance ✔ Easy Installation – Drop-in replacement; no tools required ✔ 12-Month Warranty – Reliable performance with hassle-free support

📊 Technical Specifications

Feature Specification
Voltage 11.4V
Capacity 4000mAh
Chemistry Li-Polymer
Compatible Part No CS03, CSO3, CS03XL, CSO3XL, HSTNN-I33C-4, HSTNN-I33C-5, HSTNN-I41C-4, HSTNN-I41C-5, HSTNN-IB6Y, HSTNN-UB6S, 3ICP6/65/79, 800231-141, 800513-001, ABT-HPCS03
Safety Certifications CE, RoHS
Protections Overcharge, overheat, short-circuit protection

✅ Compatible Model Numbers

HP EliteBook Series:

840 G3, 848 G3, 850 G3, 755 G3, 745 G3
840 G4, 848 G4, 850 G4, 755 G4, 745 G4

HP ZBook Series:
15u G3

Note: Verify your laptop model and original battery part number before purchase.

🛠️ Installation & Maintenance Tips

Power Off – Shut down the laptop and disconnect the AC adapter.
Remove Old Battery – Slide the locking latch to release and remove the old battery.
Insert New Battery – Align and slide the Astrum battery into place until it clicks.
Initial Charge – Charge fully before first use for optimal performance.
Maximize Lifespan – Avoid extreme temperatures; perform full discharge cycles monthly.

📦 What’s Included

1 × Astrum 11.4V 4000mAh Battery
1 × User Manual (with safety guidelines)

"Power your day—backed by a 12-month warranty!"