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#1
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1200mA Power supply and 12Ah battery
hi,
Hi, I have a mini LCD TV screen which requires a power supply of 12v - 1200mA. I would like to power the device using a battery. As i don't want to blow up the TV i wanted to make sure the battery I use is correct. The voltage is correct, but I don't know what 12Ah means, which are on the batteries. Can someone clarify this please? Thanks! Regards, James |
#2
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-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1 jaffy james wrote: hi, Hi, I have a mini LCD TV screen which requires a power supply of 12v - 1200mA. I would like to power the device using a battery. As i don't want to blow up the TV i wanted to make sure the battery I use is correct. The voltage is correct, but I don't know what 12Ah means, which are on the batteries. Can someone clarify this please? Thanks! Regards, James Hi, 12 Ah means twelve Amp-Hours (i.e. your battery could provide 1 Amp for 12 hours, or 12 Amps for 1 hour, or whatever. A simple calculation of 12 Ah divided by 1.2 A (1200mA) gives 10 hours of runtime on this battery (that's assuming a perfect world and exact specs - you'll probably get *around* ten hours). No worries about damaging anything, though. Chris -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.4 (GNU/Linux) iD8DBQFBMPNAgxSrXuMbw1YRApG3AJ9EWjVr3TPPY3UCs3M0O4 pjCOoXSgCgoJZP A5EX0u1vPR1Va3AZws4lNmg= =XW4l -----END PGP SIGNATURE----- |
#3
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On Sat, 28 Aug 2004 21:04:03 GMT, Chris wrote:
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 jaffy james wrote: hi, Hi, I have a mini LCD TV screen which requires a power supply of 12v - 1200mA. I would like to power the device using a battery. As i don't want to blow up the TV i wanted to make sure the battery I use is correct. The voltage is correct, but I don't know what 12Ah means, which are on the batteries. Can someone clarify this please? Thanks! Regards, James Hi, 12 Ah means twelve Amp-Hours (i.e. your battery could provide 1 Amp for 12 hours, or 12 Amps for 1 hour, or whatever. A simple calculation of 12 Ah divided by 1.2 A (1200mA) gives 10 hours of runtime on this battery (that's assuming a perfect world and exact specs - you'll probably get *around* ten hours). No worries about damaging anything, though. Chris Thanks for the info, much appreciated Regards, James |
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