LEOPARD, BATTERIES, POWER SUPPLY and other power issues

Hello ALL!
Happy New Year!
In fact I feel a bit scary last two days. Never had this kind of feeling since LB replaced :-D My scare related to the topics i've read here about batteries and leopard. Later below i will write my questions specific.
I just summarise my problem:
1. With battery installed unplug from mains leads to instant shutdown like it is some desktop.
2. The battery now does not have LED indication at all even in system it comes up as 100 charged and System Profiler reads information from battery.
3. When In unplug the laptop from mains first time, the battery did not give any indication of level of charge before i plug it in mains, after that it started charging and system indicator was trying to calculate remaining time till the end of charge endless...
4. This battery was working fine since 3 years without significant reduction in capacity. Before yesterday it was enough power to watch 2-2.5 hours DVD.
5. Battery seem to be dead. Mind that it was no slow reduction in capacity (keeping charge)
6. I was making calibration with some regularity.
7. While sleep mode with leopard seems battery drains faster even for me seems general operation after upgrade became longer.
So my questions are:
1. Is my battery really dead and needs replacement?
2. If yes, what are the symptoms of normal dying of battery?
3. Regarding all the posts which incline to Leopard as main cause of dying batteries should I run to buy a new one ....
4.... or it is hardware problem which lays in DC in board (heard also about battery board) which was discussed here but nobody directly gave indication that it was real cause of the problem?
5. Is it possible that even the battery will be brand new when i plug it in laptop it will die if it something related to hardware?
Thank you very much even for some smallest but helpful suggestion.
Ivan
PS: I am not in USA and not in any closest distance to Apple Store genius, most of my friends now on MB or MBP or iMac so even have nobody to try battery on exchange or even power adapter.

You didn't answer Illaass question, the newer minis have an internal power supply and should be connected directly to your mains, older ones have an external "brick". Since you mention the internal power supply, I guess your mini is one of the former, 120-240 V mains connected directly to the computer. If so, it should not be a problem using the tv power cord, if you actually have one of the older minis I don't see how you could connect the tv power cord, the contacts are really different.
So, if you have a new mini without power brick between the mains outlet and your computer, there should be no problem using any other mains cord, provided the contacts are the same. These power cords are massmanufactured by several manufacturers according to intnational standards and freely exchangeable.
Mikael

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    Disclaimer
    The Author of this posting offers the information contained within this posting without consideration and with the reader's understanding that there's no implied or expressed suitability or fitness for any purpose. Information provided is for informational purposes only and should not be construed as rendering professional advice of any kind. Usage of this posting's information is solely at reader's own risk.
    Liability Disclaimer
    In no event shall Author be liable for any damages whatsoever (including, without limitation, damages for loss of use, data or profit) arising out of the use or inability to use the posting's information even if Author has been advised of the possibility of such damage.
    Posting
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