DMKAOLLK CS03XL Laptop Battery for HP EliteBook 840/850/745/755 G3/G4 | 48Wh 4-Cell Replacement

Overview

The DMKAOLLK CS03XL laptop battery is a practical replacement option for select HP business notebooks, including the EliteBook and ZBook lines. Crafted with Li-polymer cells, it operates at 11.4V and 48Wh, delivering a balanced energy density in a compact 4-cell design. This power solution is designed to help you maintain productivity on the go, whether you’re commuting, traveling, or working between meetings.

Key compatibility and specs

• Compatible with HP EliteBook models such as 745 G3/G4, 755 G3/G4, 840 G3/G4, and 850 G3/G4, as well as HP ZBook 15u G3/G4
• Voltage and capacity: 11.4V, 48Wh, 4-cell Li-polymer construction for a slim profile
• Part numbers and variants addressed include CS03XL and related IDs such as HSTNN-I33C-4, HSTNN-IB6Y, HSTNN-UB6S, and 800231-141/800513-001
• Quality and safety: CE, FCC, ROHS, and UL certified; brand-new from the manufacturer
• Recharge cycles: designed to handle up to 1000 recharge cycles, depending on usage

What you get

• CS03XL Battery
• Two screwdrivers for installation
• User manual with basic safety and setup notes

Real-world use and installation tips

On a busy workday, a fresh CS03XL can provide steady power for presentations, coding sessions, or fieldwork. The included screwdrivers simplify replacement, and the compact form fits neatly into many HP notebooks. While the exact runtime depends on your device and workload, users may experience longer intervals between charges with this replacement battery.

Note that while this battery is designed to meet common compatibility and safety standards, actual performance may vary by device, usage patterns, and charging habits. Treat this as a reliable upgrade option that could extend notebook uptime in daily scenarios rather than a guaranteed outcome.