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12VDC Car Charger for Hewlett-PackardHP R707 Digital Camera
Hello All:
Please forgive my mis-post if this is not the correct place for this question. I am looking to any info leading to finding a 12VDC, cigarette-lighter-pluggable car charger [or schematic for] that will fully charge the battery that comes in the box with the Hewlett-Packard HP R707 Photosmart digital camera. The 120VAC wall charger works fine, but the convenience of a car unit would REALLY, REALLY be nice! Any helpful direction would be greatly appreciated! some tech specs... Description: HP Photosmart R07 Li Ion Rechargeable Product Number: L1812A Mfg Part Number: UBBP03 HP Number: Q223-80001 3.7VDC,1050 mAh Dimensions: 7mm x 35mm x 53mm Thanx-In-Advance for your time and talents. sincerely, |
#2
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Cheap and fast way is to buy a 300 watt dc to ac converter then use it to
power the ac charger. That way you have it for other things, I use one for a printer in the car. "LeftLane100" wrote in message ups.com... Hello All: Please forgive my mis-post if this is not the correct place for this question. I am looking to any info leading to finding a 12VDC, cigarette-lighter-pluggable car charger [or schematic for] that will fully charge the battery that comes in the box with the Hewlett-Packard HP R707 Photosmart digital camera. The 120VAC wall charger works fine, but the convenience of a car unit would REALLY, REALLY be nice! Any helpful direction would be greatly appreciated! some tech specs... Description: HP Photosmart R07 Li Ion Rechargeable Product Number: L1812A Mfg Part Number: UBBP03 HP Number: Q223-80001 3.7VDC,1050 mAh Dimensions: 7mm x 35mm x 53mm Thanx-In-Advance for your time and talents. sincerely, |
#3
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LeftLane100 wrote:
Hello All: Please forgive my mis-post if this is not the correct place for this question. I am looking to any info leading to finding a 12VDC, cigarette-lighter-pluggable car charger [or schematic for] that will fully charge the battery that comes in the box with the Hewlett-Packard HP R707 Photosmart digital camera. The 120VAC wall charger works fine, but the convenience of a car unit would REALLY, REALLY be nice! Any helpful direction would be greatly appreciated! some tech specs... Description: HP Photosmart R07 Li Ion Rechargeable Product Number: L1812A Mfg Part Number: UBBP03 HP Number: Q223-80001 3.7VDC,1050 mAh Dimensions: 7mm x 35mm x 53mm Thanx-In-Advance for your time and talents. sincerely, I suggest you buy one of the inexpensive DC to AC converters that are available for about $10. That way you can use the charger that came with the Camera... -- Ron Hunter |
#4
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Robert wrote:
Cheap and fast way is to buy a 300 watt dc to ac converter then use it to power the ac charger. That way you have it for other things, I use one for a printer in the car. "LeftLane100" wrote in message ups.com... Hello All: Please forgive my mis-post if this is not the correct place for this question. I am looking to any info leading to finding a 12VDC, cigarette-lighter-pluggable car charger [or schematic for] that will fully charge the battery that comes in the box with the Hewlett-Packard HP R707 Photosmart digital camera. The 120VAC wall charger works fine, but the convenience of a car unit would REALLY, REALLY be nice! Any helpful direction would be greatly appreciated! some tech specs... Description: HP Photosmart R07 Li Ion Rechargeable Product Number: L1812A Mfg Part Number: UBBP03 HP Number: Q223-80001 3.7VDC,1050 mAh Dimensions: 7mm x 35mm x 53mm Thanx-In-Advance for your time and talents. sincerely, What kind of printer needs a 300 watt converter??? One of the $10 95 watt models would be more than adequate. -- Ron Hunter |
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LeftLane100 wrote:
Description: HP Photosmart R07 Li Ion Rechargeable Product Number: L1812A Mfg Part Number: UBBP03 HP Number: Q223-80001 3.7VDC,1050 mAh Dimensions: 7mm x 35mm x 53mm See "http://shop.designertoday.com/r-281407/m-Electronics/b-281407/a-B0007NINYA/Default.aspx" I think that this is what you want. Do NOT do use an 12VDC to 120VAC inverter in your car, and the stock AC adapter. Every time someone asks about car chargers, a bunch of people feel compelled to post about buying an inverter, as if the original poster had never heard of these devices. |
#6
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#7
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Larry wrote:
Here is a NEWS BULLETIN! A great preponderance of "average people", dont know what an INVERTER is, where they can be found, or what they are used for. Relax Larry. I think that you are mistaken about what "average people" know. Inverters are sold at all the stores where "average people" shop, including Costco, Wal-Mart, Target, Sears, JC Penney, Bed Bath and Beyond, Walgreens, etc. It's not like it was 15 years ago when inverters were an esoteric item ordered from automotive specialty catalogs. If you dont like what the people in theis newsgroup post for help, you'de best declare yourself 'King Of Usenet' and promiss to come up with all the answers. The problem on Usenet is that too many people don't answer the actual question, they change the question to fit an answer that they know. The original poster did not ask about inverters, he asked about a 12VDC car charger for the R707. Since most people know about inverters, I presumed that he knew perfectly well what he was asking for. And dont forget to give the perfect answer EVERY time. This is a good point. While I can't claim to be perfect, I do try very hard to answer the actual question being asked. In your self-centric Universe the only person who matters (you) know all about inverters so, why should anyone post the suggestion right???? You want to believe that inverters are some new-fangled device that many people don't know about, yet this is not true. There is no reason NOT to use an inverter in this way, and they can be cheaper than 12v chargers. There are several reasons why the actual device the original poster was inquiring about is a better solution. First, the cheaper inverters shorten the life of devices that they are attached to because the modified sine wave waveform increases the losses due to heat, especially in transformer based devices. There are more expensive inverters that produce a real sine wave, but few people buy these. For example, a 300W sine wave inverter costs around $150, while the modified sine-wave model is only around $35 (square wave models are even less, around $25). Second, the inverters draw much more power than a DC-DC charger. This doesn't matter when the car is running, but many times you'd like to leave the charger plugged in while you're not in the car. No problem with a DC-DC charger, since it would take days or weeks to drain the car battery with a DC-DC charger. Third, the inverters are noisy, since even the smallest ones require a cooling fan. Fourth, 12V appliances that plug directly into the lighter are more efficient. For example, I can run my 12 volt Dirt Devil vacuum just fine from a 10 amp lighter socket. The 110V Dirt Devil, will not run off the inverter because the inverter cannot get enough current out of the lighter socket. If I hook the inverter directly to the battery, then it will work, but this is a hassle. You are correct that it is cheaper to buy an inverter. You can buy a 70W inverter for around $10. |
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#9
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DaveC wrote: On Tue, 15 Mar 2005 10:59:37 -0800, wrote (in article .com): Do NOT do use an 12VDC to 120VAC inverter in your car, and the stock AC adapter. Every time someone asks about car chargers, a bunch of people feel compelled to post about buying an inverter, as if the original poster had never heard of these devices. Aside your opinion of others giving opinions, what is the reason you recommend against using an inverter? To the contrary, several in this thread find they work perfectly for the OP's purpose. Please do share your reasons inverters are not a good idea. I pointed out some of the issues with an inverter in a previous post. It's not that the inverter won't work, but there are reasons why the device that the original poster inquired about is a better solution. Also see: "http://www.solareco.com/articles/article.cfm/id/50" I forgot about the RFI issue in my other post, but it can be a real problem, depending on the inverter. |
#10
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Q writes:
My entire house runs off a large "modified sine wave" inverter, and has for the last 15 plus years. I have yet to find a device that doesn't work just fine on the inverter. My camera battery chargers have never been used with anything but inverter power since I bought my first digital camera in 1998. Not only do I use them with my large home inverter, I also use them with a cheap little inverters that I haul along in my car. No problems. From what I've read, many studio strobes like Alien Bees need a pure sine wave. Also, the humidifier that is part of my CPAP system (medical device for treating sleep apnea) is not compatible with the normal car inverters, though I think there are newer models that can run off of DC current or inverters. Finally, I tried using my laptop on one of the cheap inverters you get at the big box stores, and it blew the fuse, so with some devices you might need to match the specs. -- Michael Meissner email: http://www.the-meissners.org |
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