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    WRT54G Solar Power Project

    Hi Guys, I am looking at building the below http://www.voltsxamps.com/?p=532 My question if I buy a 7Ah 12v battery which I have read elsewhere should last around 29hrs (over night would be fine) ideally what solar panel wattage would I need. Because I need to keep unit running in the day but...
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    Car Battery Charger

    I've decided not to go down the computer psu route. I'll probably build a few systems or look for a really big charger. Daniel
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    Car Battery Charger

    Thanks guys for your replies. Steve that story sounds interesting. 99.99% of the time the psu would be providing the power to the inverter, if mains power went off the deep cycle batteries would take the load. I am still pondering over a few things as to safety and if its all going to work as I...
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    Car Battery Charger

    Resqueline, Thought so. I'm trying to find a way around this. I have a couple of basic questions though before I decide: 1. Would using a 500watt computer psu provide enough power to use a 400-500 watt inverter on the 12v output? 2. I have had issues with our breaker tripping due to the...
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    Car Battery Charger

    Hi Guys, After my last post about the ups system I have an idea of whats required sorta of. Does anyone have a working circuit layout for a car battery charger. The thing is I am trying to figure out whether its worth building one or buying one. I am looking at around 40-70amps charging...
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    UPS System Advice

    I managed to hook up 5 pcs on the following: 20amp charger, 800watt inverter However when adding the sixth the inverter squeeks about low power. These machines were old and the power used was 230-260 watts with 5. I'm happy to say the mains breaker doesn't trip when running the machines so...
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    UPS System Advice

    Resqueline, Does the following diagram below conform to "double conversion / online topology"? 240vac > car battery charger > 12vdc > batteries > 12vdc > inverter > 240vac > pcs I can't see any other way of setting it up really. Daniel
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    UPS System Advice

    I see thank you. Daniel
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    UPS System Advice

    Hi Guys, I hope this is the right place to post? I'm looking at building a ups system comprising for deep cycle leisure batteries and an inverter plus a few more bits and peices etc. The setup would go something like this: 240vac > car battery charger > 12vdc > batteries > 12vdc > inverter >...
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