my laptop will only work when it's plugged in to the power as soon as i take it out all goes dead.it's a brand new battery

[odehill]

fawlty laptop that only works when connected to the mains

 

[webworkings]

Is the battery charging? Also, is it a brand battery or an after market one? If it is the latter, that may well be your problem.

 

[EvilHamster]

I don't think it is the case. But, if it is a removable battery, perhaps there is insulation on the end? (like a small tape). Some manufacturers do that. You would have to remove that first.


Other than that, as webworkings has said, when you use it with a charger, what does the battery say? Is it being detected at all?

Try running HWinfo and see what it says under battery (smartbattery? last thing usually on the list on the right. Double click it and then select primary battery. On the right you get the readout).