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| Thread ID: 32581 | 2003-04-23 03:10:00 | Cheap UPS | somebody (208) | Press F1 |
| Post ID | Timestamp | Content | User | ||
| 138032 | 2003-04-23 03:10:00 | I just came up with an idea. Is it possible to make a cheap UPS using a car battery (12v) a car battery charger (or 12v transformer), and a step-up 12v-240v inverter? |
somebody (208) | ||
| 138033 | 2003-04-23 03:17:00 | yes but it would proberly be far easier to get a ready made one, proberly the same price to. | tweak'e (174) | ||
| 138034 | 2003-04-23 05:30:00 | The other problem is that a car battery is a very bad thing to have in the house, especially anywhere near electronic gear (like computers. :D) Everything corrodes. :_| By the time you got a decent capacity of sealed lead acid ("gel") battery, and a proper charger for it (you don't use a "car battery charger" on them) plus a decent capacity inverter, you would certainly (not "proberly", even probably ;-) ) find it costing more than the proper thing. |
Graham L (2) | ||
| 138035 | 2003-04-23 05:34:00 | Car battery charger = $40 Car Battery = $60 Inverter (300 watt) $180 or Inverter (650 Watt) $300 Total $280 - $380 400 Watt UPS = $249, includes software and interface to PC |
godfather (25) | ||
| 138036 | 2003-04-23 06:20:00 | Thanks guys... I guess it was a good idea at the time.... Solar panel?? :) |
somebody (208) | ||
| 138037 | 2003-04-23 07:35:00 | Yaeh, but what if the power fails at night :D lol | Pheonix (280) | ||
| 138038 | 2003-04-23 10:13:00 | > Solar panel?? Assuming (as pointed out) you only want UPS during the sunshine hours, a 500 watt array of solar panels, plus an inverter will be about $7,000 to $10,000. |
godfather (25) | ||
| 138039 | 2003-04-23 10:28:00 | How about peddle power? Toilet breaks could be a challenge though. Hmm ideas starting to flow. Cheers Murray P |
Murray P (44) | ||
| 138040 | 2003-04-23 10:56:00 | now all i need is a big ups to run the whole office and add a solar panel to it to cut down the power bill a bit ;-) | tweak'e (174) | ||
| 138041 | 2003-04-23 22:46:00 | mini-windfarm??? | somebody (208) | ||
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