Amp Rechargeable

Amp Rechargeable
I need someone who's really good with amplifiers?

ok so i need to know which ones better:

http://cgi.ebay.com/Car-Motorcycle-12V-Mini-Hi-Fi-Audio-Stereo-Amplifier-/180674537322?pt=UK_AudioTVElectronics_HomeAudioHiFi_Amplifiers&hash=item2a110aa76a

http://cgi.ebay.com/Car-Motorcycle-12V-Mini-Hi-Fi-Audio-Stereo-Amplifier-5W-/150577785549?pt=Car_Amplifiers&hash=item230f22aacd

http://cgi.ebay.com/12V-Mini-Hi-Fi-Audio-Stereo-Amplifier-Mp3-Bass-Car-Home-/120686542930?pt=AU_Electronics_Audio_Amplifiers&hash=item1c197a8052

http://cgi.ebay.com/Lepai-TRIPATH-TA2020-Amp-Mini-Hi-Fi-Audio-Amplifier-/360353418952

I really like the last one the best but im not sure if it will work for what i need it for. I need to be able to power them by a 12v rechargeable battery and I know the first three can be powered by that, but idk about the last one cuz it says that it comes with "1 x 100-240V Power Supply." Does that mean that my 12v wont be able to power it? PLEASE HELP!

For the last one you need a 12V DC 2amp power supply. So be sure your 12v battery can provide 2amp, which for most of the batteries it will.

PA System Battery Tips and Troubleshooting | Rechargeable Batteries AC

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