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Power inverter at art shows
Hi,
I need some AC power for our next show. I saw someone using a power inverter with a battery at a show last week, but wasn't able to speak with them. Has anyone used this? I will use if for my credit card machine, maybe a fan. I was thinking of buying one that handles 400 watts at Home Depot, but my main question is regarding the battery. What kind of battery should I buy? How long will it last? Is it rechargeable? I won't be close enough to plug into my car. Also, I read that the inverter should be about 10 feet from the battery, but I haven't seen how people extend that length. Any advice, or direction to somewhere on the web, will be greatly appreciated. Thanks! Perplexed Paul |
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On 13 Jul 2004 09:56:54 -0700, Perplexed Paul wrote:
I need some AC power for our next show. I saw someone using a power ^^^^^^^ inverter with a battery at a show last week, but wasn't able to speak with them. ^^^^ Well, make up your mind. Was it a someone, or was it multiple ones. Has anyone used this? Obviously. You already said you saw one in use. I will use if for my credit card machine, maybe a fan. I was thinking of buying one that handles 400 watts at Home Depot, but my main question is regarding the battery. What kind of battery should I buy? How long will it last? Is it rechargeable? An RV battery would fit the ticket. Check at *-Mart. Automotive batteries are designed for the short-term large current draw required by the engine's starter. RV batteries are designed for lower current draw for longer periods of time. Let's say you get one that's rated at 50 amp hours (pulling a number out of thin air). That means you can draw 1 amp (~10 watts AC) for 50 hours or 10 amps (~105 watts AC) for 5 hours. I won't be close enough to plug into my car. Also, I read that the inverter should be about 10 feet from the battery, but I haven't seen how people extend that length. Where did you read that? Any advice, or direction to somewhere on the web, will be greatly appreciated. Thanks! http://www.harborfreight.com/cpi/cta...emnumber=47006 If the inverter needed to be 10 feet from the battery, why would they only put a 2½' cord on it? -- When did schools stop teaching that a plural pronoun needs a plural antecedent? |
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Thank you very much for the information and the reply. I truly appreciate it.
I apologize that my post as written annoyed you. |
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"Some Anon" wrote in message ... On 13 Jul 2004 09:56:54 -0700, Perplexed Paul wrote: I need some AC power for our next show. I saw someone using a power ^^^^^^^ inverter with a battery at a show last week, but wasn't able to speak with them. ^^^^ Well, make up your mind. Was it a someone, or was it multiple ones. Has anyone used this? Obviously. You already said you saw one in use. I will use if for my credit card machine, maybe a fan. I was thinking of buying one that handles 400 watts at Home Depot, but my main question is regarding the battery. What kind of battery should I buy? How long will it last? Is it rechargeable? An RV battery would fit the ticket. Check at *-Mart. Automotive batteries are designed for the short-term large current draw required by the engine's starter. RV batteries are designed for lower current draw for longer periods of time. Let's say you get one that's rated at 50 amp hours (pulling a number out of thin air). That means you can draw 1 amp (~10 watts AC) for 50 hours or 10 amps (~105 watts AC) for 5 hours. I won't be close enough to plug into my car. Also, I read that the inverter should be about 10 feet from the battery, but I haven't seen how people extend that length. Where did you read that? Any advice, or direction to somewhere on the web, will be greatly appreciated. Thanks! http://www.harborfreight.com/cpi/cta...emnumber=47006 If the inverter needed to be 10 feet from the battery, why would they only put a 2½' cord on it? -- When did schools stop teaching that a plural pronoun needs a plural antecedent? wow.... when did potters start giving a ____? I guess I'm still a 60's hippie... |
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On Fri, 16 Jul 2004 07:33:27 GMT, Some Anon
wrote: On 13 Jul 2004 09:56:54 -0700, Perplexed Paul wrote: I won't be close enough to plug into my car. Also, I read that the inverter should be about 10 feet from the battery, but I haven't seen how people extend that length. Where did you read that? Any advice, or direction to somewhere on the web, will be greatly appreciated. Thanks! http://www.harborfreight.com/cpi/cta...emnumber=47006 If the inverter needed to be 10 feet from the battery, why would they only put a 2½' cord on it? I suspect the recommendation was that the inverter should be 10 feet *or less* from the battery, as longer leads will mean higher resistance and more voltage drop under heavy loads. If you truly need longer leads, you could use heavier-gage (lower number) wire to give lower resistance. You'd have to determine what gage the inverter maker said was OK at 10 feet and not exceed that equivalent resistance. Write back with the specified gage for 10 feet, and the length you really need, if you want help selecting a heavier gage. Bob Masta dqatechATdaqartaDOTcom D A Q A R T A Data AcQuisition And Real-Time Analysis www.daqarta.com |
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