Dell Latitude 7640 i7-1365U 11.4V 57Wh Laptop Battery Specifications
- Battery Type: Li-ion / Li-polymer high-density cells
- Capacity: 57Wh standard configuration
- Voltage: 11.4V stable output
- Cells: 3-cell internal lithium-polymer pack
- Compatibility: Dell Latitude 7640 battery family
- Platform Support: Dell Latitude 7640 / Latitude 7640 2-in-1
- Design: Internal OEM replacement battery
- Charging Support: Dell ExpressCharge / USB-C fast charging
- Part Numbers: WW8N8 / 66DWX / V0W55 compatible variants
Dell Latitude 7640 i7-1365U 11.4V 57Wh Laptop Battery Overview
The Dell Latitude 7640 i7-1365U 11.4V 57Wh laptop battery is an OEM internal replacement battery designed for Dell’s premium business ultrabooks. It delivers stable voltage output, balanced energy capacity, and reliable runtime for office work, browsing, video conferencing, and productivity tasks.
The Latitude 7640 platform commonly uses a 57Wh 3-cell 11.4V lithium-polymer battery, which is the higher-capacity option compared to the 38Wh variant. Dell confirms that this platform supports both configurations depending on chassis and configuration, with 57Wh offering significantly longer runtime for mobile professionals.
The 11.4V rating is the standard nominal voltage for this 3-cell lithium-polymer design, and it is widely used across Latitude 7340/7440/7640 shared battery families.
Dell Latitude 7640 i7-1365U 11.4V 57Wh Laptop Battery Price Table
| Product | Price in Kenya (KSh) |
|---|---|
| Dell Latitude 7640 i7-1365U 11.4V 57Wh Laptop Battery | 8,500 – 17,500 |
Dell Latitude 7640 i7-1365U 11.4V 57Wh Laptop Battery Key Specifications
| Specification | Details |
|---|---|
| Model | Dell Latitude 7640 |
| Platform | Latitude 7000 series ultrabook |
| Processor Support | Intel Core i7-1365U |
| Battery Type | Lithium-ion / Lithium-polymer |
| Capacity | 57Wh |
| Voltage | 11.4V |
| Cell Configuration | 3-cell |
| Build Type | Internal replacement battery |
| Cycle Life | ~300–500 cycles |
| Charging System | Dell ExpressCharge / USB-C |
Dell Latitude 7640 i7-1365U 11.4V 57Wh Laptop Battery Charging Performance
- Stable charging for business workloads
- Supports Dell ExpressCharge technology
- Efficient USB-C power delivery
- Full charge typically in ~2.5–3.5 hours
- Optimized for extended daily usage
Dell Latitude 7640 i7-1365U 11.4V 57Wh Laptop Battery Safety Features
- Overcharge protection
- Over-discharge protection
- Short-circuit protection
- Thermal regulation system
- Smart battery IC management
Dell Latitude 7640 i7-1365U 11.4V 57Wh Laptop Battery Compatibility
- Dell Latitude 7640
- Dell Latitude 7640 2-in-1
- Dell Latitude 7340 / 7440 (shared battery family variants)
- Compatible WW8N8 / 66DWX battery family systems
- Always confirm exact part number before purchase
Dell Latitude 7640 i7-1365U 11.4V 57Wh Laptop Battery Durability & Build
- High-density lithium-polymer cells
- OEM-grade internal casing
- Stable discharge under daily workloads
- Designed for business ultrabooks
- Secure internal connector design
Dell Latitude 7640 i7-1365U 11.4V 57Wh Laptop Battery Energy Efficiency
- Optimized for longer runtime vs 38Wh version
- Stable voltage under multitasking
- Efficient Intel U-series CPU pairing
- Balanced portability and endurance
Dell Latitude 7640 i7-1365U 11.4V 57Wh Laptop Battery Ideal Use Cases
- Business professionals
- Corporate users
- Students
- Remote workers
- Frequent travelers
Dell Latitude 7640 i7-1365U 11.4V 57Wh Laptop Battery Pros and Cons
| Pros | Cons |
|---|---|
| Longer 57Wh runtime | Internal installation required |
| Stable 11.4V output | Not user-removable |
| OEM safety protections | Must confirm exact compatibility |
| Good for travel use | Heavier than 38Wh version |
| Wide Latitude compatibility | Slightly higher cost |
Dell Latitude 7640 i7-1365U 11.4V 57Wh Laptop Battery Conclusion
The Dell Latitude 7640 i7-1365U 11.4V 57Wh laptop battery is a reliable OEM replacement designed for Dell’s premium ultrabooks. It provides strong runtime, stable performance, and safe charging, making it a practical replacement option in Kenya for users who need longer battery life for business and mobile productivity.
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