Stay unplugged longer with the help of a spare ThinkPad system battery. Help increase your productivity by achieving longer system operation times than with just the standard system battery. Get the power you need whenever and wherever you need it for your ThinkPad T40 or R50 Series notebook.<br> <br><b>Features & Benefits:</b> <br> <br>- Original equipment specifications for correct fit and capabilities <br>- With the unique IBM SmartBattery capability, your system can maximise the amount of time you can be up and running, and can tell you how much power you have left <br>- Lithium-Ion technology gives this battery a long life and light weight <br>- Spare battery convenience allows you to work unplugged longer <br>- Backed by IBM Service and Support.
| Type | Battery |
| Weight | 300 g |
| Battery voltage | 10.8 V |
| Battery capacity | 4800 mAh |
| Battery technology | Lithium-Ion (Li-Ion) |
| Brand compatibility | Lenovo |
| Number of battery cells | 6 |
| Operating temperature (T-T) | 5 - 35 °C |
| Operating relative humidity (H-H) | 8 - 80% |
No verified substitutes available.