HUNK is playable in the Mercenaries minigame in Resident Evil 4, but has no relation to the story. HUNK appears as a side character in Resident Evil: Operation Raccoon City, where he works with other Umbrella Security Service operatives to recover a sample of the G-virus prior to the events of Resident Evil 2. He is also a playable character in Resident Evil: The Mercenaries 3D and Resident Evil Revelations.
Nowadays most laptops has a battery life of about 4 hours. Old ones bought in the 2000~2004 Last about 2 hours.
The most common problem is that the motherboard's capacitors go out first leading to a non-bootable(and thus non-usable laptop). These capacitors have up to 5000 hours of life. A rough estimate for someone who uses laptops as their primary computer (e.g. without a desktop) is 5 hours a day average; this yields 2.7 years.