BTI ThinkPad R40e Series Laptop battery - Lithium Ion (Li-Ion) - 10.8V DC
- Smaller and lighter than other rechargeable batteries, proving ideal for portable devices
- Proprietary Battery Size battery size for better reliance and optimal performance
- Delivers 11.1 V DC to your compatible notebook, ensuring that your device is ready to use when needed
- Rechargeable battery - Lasts longer on a single charge than its disposable counterparts
- 4400 mAh battery capacity for dependable, faster charging to ensure maximum convenience and usability
- Proprietary Battery Size battery - Ideal for replacing the older notebook battery easily
