Battery Life ============ (Warning: it's an older text I have found on my MC600 laptop. But I think that It is still valid.) How long can your laptop survive in suspend? One week? Three months? Well, I just opened my PSION MC400 (a laptop made by PSION which uses their OS - the early version of the SIBO which is more known as OS for PSION Series 3 and Workabout devices). I replaced the batteries (8xAA) before more than 20 months. Of course I ran it for just few times and usually for few minutes. The batteries still have over 30% of their capacity. They are modern ENELOOPs, of course. Anyway, this is not so bad battery life! The newer DOS-based MC600 laptop is not so good, though. Update: I have had to replace the backup battery today. The main batteries are still working.