Lipo Problems !!

[pistol_pete_2011]

Hi all hope you can help please, new to lipos.

im using a core-rc uac-40 charger and trying to charge a lipo 7.4v 2s losi receiver pack its coming up with ERROR LOW VOLTAGE when trying to charger and will not charge.

Ive seen on another link to charge lipo at very low rate on nimh for 30 seconds to up the rate so it can pick the voltage up, so i tried that and got it from 1.8v to 5.0v in 30 seconds but still saying ERROR when putting it back on lipo settings

Thanks Dave...