Im currently refurbishing my wife's old Dell D430 laptop so my daughter can use it for school. I have replaced her business copy of Vista with Linux Mint 11 and chopped out the old Broadcom wifi card with an Intel Pro one (Mint recognises it straight off the bat). However the battery (Dell GG386) is old and faulty. It currently gives only 45 minutes on a full charge. Subsequently I am looking to replace that as well. Has any body used any third party laptop batteries and can the be deemed as safe and reliable? Any help would be much appreciated.