Regarding this topic for those rechargeable, barrel type batteries that start to leak after a while. When I replaced the battery in my A4000T (converted from a desktop machine), I had my dealer desolder it from the motherboard and solder jumper pins to the appropriate holes in its place. Wires with a plug to connect to the jumper pins were soldered to the new battery. It was then velcro'ed to the bottom of my A4000T's case as far away from the motherboard as possible. If/When the current one starts leaking, it will not kill the motherboard and it will be much easier to replace again.
