The HP HSTNN-DB4Q battery is an internal replacement battery used in several HP business-class laptops, especially the HP EliteBook 840 G1 and related EliteBook G1/G2 series models. It is designed to deliver stable power for professional workloads such as office applications, browsing, conferencing, and light productivity tasks.
This battery is commonly part of the CM03XL / HSTNN-IB4R / HSTNN-DB4Q platform family and features a 3-cell lithium-ion polymer design with a nominal capacity of approximately 50Wh and a voltage of 11.4V (or 11.1V depending on labeling variation).
Compatible with HP EliteBook 840 G1 and related EliteBook models
3-cell lithium-ion polymer design
~50Wh capacity for balanced business performance
Stable 11.4V / 11.1V output depending on variant
CM03XL / HSTNN-IB4R / HSTNN-DB4Q battery platform family
OEM-compatible internal replacement battery
Built-in protection against overheating and overcharging
Designed for business and productivity laptops
HP HSTNN-DB4Q Battery Price in Kenya
Item
Price in Kenya (KES)
HP EliteBook 840 G1 50Wh replacement battery
4,500 – 10,500 KES
HP HSTNN-DB4Q Battery Specifications Table
Specification
Details
Product Name
HP HSTNN-DB4Q battery
Battery Type
Lithium-ion polymer
Voltage
~11.4V
Capacity
~50Wh
Cell Configuration
3-cell
Compatibility
HP EliteBook 840 G1 and related EliteBook models
Replacement Family
CM03XL / HSTNN-IB4R / HSTNN-DB4Q
Installation Type
Internal battery
HP HSTNN-DB4Q Battery Design and Build
Compact internal business laptop battery
Lightweight 3-cell structure for portability
Durable casing for enterprise environments
Precision-fit design for EliteBook chassis
Optimized for Intel business-class platforms
HP HSTNN-DB4Q Battery Performance
Reliable runtime for office productivity tasks
Suitable for documents, email, and browsing
Stable output under light to moderate workloads
Efficient energy delivery for business use
Designed for daily professional computing
HP HSTNN-DB4Q Battery Efficiency
Optimized for low power consumption
Supports sleep and standby power saving
Reduced idle drain for longer battery life
Balanced discharge for consistent performance
Designed for enterprise mobility
HP HSTNN-DB4Q Battery Safety Features
Overcharge protection system
Over-discharge protection
Short circuit protection
Thermal regulation control
Smart battery management circuitry
HP HSTNN-DB4Q Battery Compatibility
HP EliteBook 840 G1
HP EliteBook 840 G2 (select variants)
HP EliteBook 850 G1 / G2 (platform variants)
HP ZBook 14 (some configurations)
HP HSTNN-DB4Q Battery Durability
High-quality lithium-ion cells
Supports multiple charge cycles
Stable performance under daily use
Gradual capacity reduction over time
Designed for long-term business reliability
HP HSTNN-DB4Q Battery Pros and Cons
Pros
Cons
Standard 50Wh business capacity
Internal installation required
Stable performance for office use
Not user-removable
Widely used EliteBook platform
Battery degrades over time
Reliable and efficient
Not suitable for gaming workloads
Easy replacement availability
Moderate runtime under heavy load
HP HSTNN-DB4Q Battery FAQs
What is the battery capacity?
Approximately 50Wh
What voltage does it use?
Around 11.4V (sometimes labeled 11.1V)
Which laptops use this battery?
Mainly HP EliteBook 840 G1 and related EliteBook models
Is it good for gaming?
No, it is designed for business and productivity use
Is it removable?
No, it is an internal battery
HP HSTNN-DB4Q Battery Conclusion
The HP HSTNN-DB4Q battery is a 50Wh CM03XL-series internal replacement designed for HP EliteBook business laptops. It provides stable performance, efficient power usage, and reliable everyday runtime for professional users.
