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Eaton self powered radio @ woot.
#11
LifeInPa;44796 Wrote:
39Flathead;44791 Wrote:I was at Advance auto the other day and they had these:
http://shop.advanceautoparts.com/webapp/...m=inverter
400 watt inverter for $49. I figured it would be good to run something small (like a radio) and to use to charge a cell phone.
Just keep a deep cycle battery in the house, maybe with one of the cheap solar battery maintainers as well.


Advance is running 20% off as well as you get a $50 credit for a future purchase of $100 or more when you spend $100 today.

That's a pile of savings and you don't have to pay shipping as you can pick the stuff up in the store.

I was discussing this topic with Streaker in another thread, charging a battery with solar and drawing power from it for devices. He mentioned that an inverter waste a lot of power in going from AC to DC so if the device is DC you are best just drawing straight DC for the device. Maybe Streaker will chime in. Wink

That is very true. If you have 5VDC device it would be better to buy/build a power supply that converts 12VDC to 5VDC instead of running through an inverter. You'll have a lot of loss of your charge by going from DC to AC to DC. Inverters are good when you have the ability to keeping the battery charged ahead of what the inverter is using.

Get something like this and keep with your energy supplies.

http://www.cellphoneshop.net/2cig2usb.ht...4Aod6EEA9g

Install a "accessory" jack with your batteries.
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#12
I was thinking that a generator that feeds into a bank of deep cell batteries with both a inverter and converter set up would be the absolutely ideal set up.
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#13
Valorius;44820 Wrote:I was thinking that a generator that feeds into a bank of deep cell batteries with both a inverter and converter set up would be the absolutely ideal set up.

Doesn't your building have a flat roof? You should be thinking solar.
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#14
Part of my building has a flat roof, another part is arched. I don't have the money for solar right now, or i would be thinking of it. What i do have, is 2 generators.

Long term, Solar is something i'd like to do, hell, i'd love to have a green roof AND solar. Smile
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#15
I have a few Eton radios...no issues so far.

We have a Solarlink FR-360 and two Microlink FR-160's

[Image: CO977.jpg]

[Image: FR160-R_p.gif]

streaker69;44815 Wrote:That is very true. If you have 5VDC device it would be better to buy/build a power supply that converts 12VDC to 5VDC instead of running through an inverter. You'll have a lot of loss of your charge by going from DC to AC to DC. Inverters are good when you have the ability to keeping the battery charged ahead of what the inverter is using.

Get something like this and keep with your energy supplies.

http://www.cellphoneshop.net/2cig2usb.ht...4Aod6EEA9g

Install a "accessory" jack with your batteries.

I suggest a set of these:

[Image: 419BAInq4SL._SL500_AA300_.jpg]

Roadpro 12V Battery Clip-On and Cigarette Lighter Adapter
Kodiak, proud to be a member of pa2a.org since Sep 2012.
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#16
LifeInPa;44687 Wrote:I see a lot of these devices offer a USB port so you can charge/power a mobile phone, has anyone tested that? I assume it would take a hell of a lot of cranking to get enough usable juice for even a basic cell phone. Thoughts? Huh

The whole USB port charging technique assumes a PC or laptop will be available & powered. This isn't always the case.

That's about right, lots 'o cranking for a little listening. I'm a little more efficient (code word for lazy), so I made a constant current regulator to charge mine from any available DC source...car battery, solar panel, potato or lemon batteries, what-have-you.
Subject matter expert on questions no one's asking.
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#17
PA Rifleman;44908 Wrote:
LifeInPa;44687 Wrote:I see a lot of these devices offer a USB port so you can charge/power a mobile phone, has anyone tested that? I assume it would take a hell of a lot of cranking to get enough usable juice for even a basic cell phone. Thoughts? Huh

The whole USB port charging technique assumes a PC or laptop will be available & powered. This isn't always the case.

That's about right, lots 'o cranking for a little listening. I'm a little more efficient (code word for lazy), so I made a constant current regulator to charge mine from any available DC source...car battery, solar panel, potato or lemon batteries, what-have-you.

I'd like to hear more about these potato and lemon batteries. Big Grin
[Image: 23lmtsn.jpg]
LifeInPa, proud to be a member of pa2a.org since Sep 2012.
Sanity, yours if you can keep it. Confused
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#18
LifeInPa;44910 Wrote:
PA Rifleman;44908 Wrote:The whole USB port charging technique assumes a PC or laptop will be available & powered. This isn't always the case.

That's about right, lots 'o cranking for a little listening. I'm a little more efficient (code word for lazy), so I made a constant current regulator to charge mine from any available DC source...car battery, solar panel, potato or lemon batteries, what-have-you.

I'd like to hear more about these potato and lemon batteries. Big Grin

http://www.google.com/search?hl=en&as_q=...&as_rights=
Subject matter expert on questions no one's asking.
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#19
PA Rifleman;44964 Wrote:
LifeInPa;44910 Wrote:I'd like to hear more about these potato and lemon batteries. Big Grin

http://www.google.com/search?hl=en&as_q=...&as_rights=

I was expecting a funny response. I have seen these items used in Science experiments but never in practical applications.
[Image: 23lmtsn.jpg]
LifeInPa, proud to be a member of pa2a.org since Sep 2012.
Sanity, yours if you can keep it. Confused
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#20
Just for shits I did a little experiment last night with my Droid 4 and the Eton FR160.

I had a 50% capacity battery at 3.807v and charged it with the radio for 5 mins to see how much the voltage had increased.

Well..after 5 mins it was at 3.868v...not much....just .061v more

So I charged the droid to 100% which was 4.365v and figured out it would take roughly 45 mins of cranking to get to full charge from 50%.
Kodiak, proud to be a member of pa2a.org since Sep 2012.
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