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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ExpertPower EXP1272 12V 7.2 Amp Rechargeable Battery
ExpertPower EXP1272 12V 7.2 Amp Rechargeable Battery
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ExpertPower Sealed Lead Acid Batteries are made with the highest quality of materials available. Our Lead Acid Batteries are typically used for: Home Alarm Systems, Uninterruptible Power Supply(UPS), Lighting Equipment, General Electronics, Home Security Systems, Emergency Systems, Medical Devices, Electric Scooters, Solar Collectors, Wheelchairs and many Other Applications. Whether it's the SECUR...

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PowerStar® Replacement Power-Sonic PS-1290 12 Volt 9 Amp Hour Rechargeable SLA Battery (F2 Terminals)
PowerStar® Replacement Power-Sonic PS-1290 12 Volt 9 Amp Hour Rechargeable SLA Battery (F2 Terminals)
$23.88
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Don't be Stuck to an Outlet - Take Your Charging On-the-Go!Solar ReStore XL uses a high-efficiency solar panel with a 300mA charging rate in direct sunlight, absorbing enough energy to charge most phones after only 4-6 hours! Leave the pack in direct sunlight for 13 hours to fully charge its 4000mAh battery. The Li-polymer battery pack stores emergency power for weeks without degradation, so you'l...
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The perfect solution for users of several wireless systems on stage, for laboratory and industrial applications. Latest charging technology integrated in a professional, practical housing ready to be mounted in a rack. These processor-controlled ultra rapid Fischer Amps chargers make the decision on working with rechargeable batteries easy. -delta cutoff with micro-controlled electronics. No memor...
ExpertPower EXP1270 Black 12V 7 Amp Rechargeable Lead Acid Battery
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$16.49
ExpertPower Sealed Lead Acid Batteries are made with the highest quality of materials available. Our Lead Acid Batteries are typically used for: Home Alarm Systems, Uninterruptible Power Supply(UPS), Lighting Equipment, General Electronics, Home Security Systems, Emergency Systems, Medical Devices, Electric Scooters, Solar Collectors, Wheelchairs and many Other Applications. Whether it's the SECUR...