HP 921439-855 battery
- Battery Type: Li-ion
- Voltage: 11.55V
- Capacity: 51.4wh
- Color: Black
- Condition: Brand New
HP 921439-855 battery
The HP 921439-855 AD03XL 51.4Wh Battery is a replacement lithium-ion battery commonly used in HP Envy 13-AD series laptops. It delivers stable 11.55V output with a 51.4Wh capacity, ensuring reliable backup power for everyday tasks such as browsing, office work, streaming, and light productivity use. Priced at KSh 7,080 in Kenya, it is a dependable replacement option for restoring battery life and mobility.
The AD03XL battery is widely used in HP Envy ultra-thin laptops and is designed for efficient power delivery in slim, lightweight devices that require stable performance and long runtime efficiency.
Who Should Buy This Battery?
This battery is ideal for users of HP Envy 13-AD series laptops (including models using 921439-855) whose original battery has degraded and need a reliable OEM-compatible replacement.
HP 921439-855 AD03XL 51.4Wh Battery Price Table
| Product Model | Specification | Price in Kenya |
|---|---|---|
| HP 921439-855 Battery | AD03XL (51.4Wh, 11.55V) | KSh 7,080 |
HP 921439-855 AD03XL 51.4Wh Battery Key Specifications Table
| Specification | Details |
|---|---|
| Battery Model | AD03XL |
| Part Number | 921439-855 |
| Capacity | 51.4Wh |
| Voltage | 11.55V |
| Battery Type | Li-ion / Li-polymer (variant dependent) |
| Cell Count | 3-cell |
| Compatibility | HP Envy 13-AD series and models using 921439-855 |
| Charging Cycles | 300–500 cycles (typical) |
| Protection Features | Overcharge, over-discharge, short circuit protection |
| Build Quality | OEM-compatible replacement grade |
HP 921439-855 AD03XL Battery Performance and Efficiency
Provides stable backup power for ultrabooks
Supports light productivity, browsing, and media use
Delivers efficient energy consumption for slim laptops
Ensures consistent voltage output under normal workloads
Optimized for HP Envy 13 ultra-thin performance systems
HP 921439-855 AD03XL Battery Safety Protection Technologies
Overcharge protection prevents battery damage
Over-discharge protection extends lifespan
Short circuit protection enhances safety
Thermal protection reduces overheating risks
Stable lithium-based chemistry for safe operation
HP 921439-855 AD03XL Battery Compatibility and Installation
Compatible with HP Envy 13-AD series laptops
Works with devices using 921439-855 / AD03XL battery
Internal installation (requires laptop disassembly)
No drivers or software required
Direct replacement for worn-out batteries
HP 921439-855 AD03XL Battery Durability and Lifespan
Designed for daily ultrabook use
Typical lifespan of 2–3 years depending on usage
Heat and charging cycles affect long-term performance
Suitable for light to moderate workloads
Restores original portability when replaced
HP 921439-855 AD03XL Battery Ideal Use Cases
Office productivity and remote work
Student assignments and online learning
Web browsing and streaming
Light multitasking
Battery replacement for degraded units
HP 921439-855 AD03XL Battery Pros and Cons Table
| Pros | Cons |
|---|---|
| Restores original ultrabook battery life | Not high-capacity for heavy workloads |
| OEM-compatible AD03XL design | Requires internal installation |
| Efficient 51.4Wh output | Limited runtime under heavy use |
| Safe lithium-ion protection | Not universal across HP models |
| Compact and lightweight | Degrades over time like all Li-ion batteries |
HP 921439-855 AD03XL Battery Frequently Asked Questions (FAQs)
What is the price in Kenya?
It costs KSh 7,080.
Is it compatible with all HP laptops?
No, only HP Envy 13-AD series using AD03XL / 921439-855 batteries.
How long does it last?
Typically 3–6 hours depending on usage.
Is it safe to use?
Yes, it includes standard lithium-ion safety protections.
Can it replace the original battery?
Yes, it is a direct OEM-compatible replacement for AD03XL models.
HP 921439-855 AD03XL 51.4Wh Battery Conclusion
The HP 921439-855 AD03XL 51.4Wh Battery is a reliable replacement solution for restoring HP Envy ultrabook performance and portability. With stable power delivery, OEM compatibility, and strong safety features, it ensures dependable daily use. At KSh 7,080 in Kenya, it offers solid value for users needing a quality replacement battery.
| Shipping Cost |
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| Shop Location | Kenya |
