Swap your optical drive for a second battery to increase your unplugged usage time. The ThinkPad Advanced UltraBay Battery fits neatly into the UltraBay media bay of ThinkPad Z Series notebooks and can be used in conjunction with the system battery. For all day computing use the Advanced UltraBay Battery with the optional ThinkPad Z60t Series 7 Cell Li-Ion Battery or the optional ThinkPad Z60m Series 9 Cell Li-Ion Battery.
These combinations provide up to 8 hours run time on select systems with the 7 cell battery and up to 8.5 hours run time on select systems with the 9 cell battery. Battery life (and recharge times) depends on many factors including screen brightness, applications, features, power management, battery condition and other customer preferences.
| Type | Battery |
| Weight | 235 g |
| Battery voltage | 10.8 V |
| Battery capacity | 2700 mAh |
| Brand compatibility | Lenovo |
| Number of battery cells | 3 |
| Operating temperature (T-T) | 5 - 35 °C |
| Operating relative humidity (H-H) | 8 - 80% |
No verified substitutes available.