Anybody see these (would work ultimate lithiums)
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jaetee
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I'd hold off for a bit until someone with some serious electrical knowledge chime in.
The auction actually states it will use one or two AA's, not four???? And if you lump four AA's together, you end up with more physical space taken up than 1 D-cell.
But, on that note... If you put two AA's into one of those, doesn't that translate to 3V instead of 1.5v? I think that needs to be taken into consideration. And if you put 20 AA's into a boomer, wouldn't you end up with 30v of DC instead of 15V? And would that damage the box???
You might be better off putting nickel cads (rated at 1.2v) in such that you end up with a total close to 15 volts. That would be very similar to what JVC838 did with is very impressive Aiwa 880. He said that the nickel cads deliver more power, just at a lower voltage, so he devised a way to put 11 C-cells into his Aiwa, and let me tell you.... that thing pounded like it was plugged into the wall. Sounded freakin' amazing...
The auction actually states it will use one or two AA's, not four???? And if you lump four AA's together, you end up with more physical space taken up than 1 D-cell.
But, on that note... If you put two AA's into one of those, doesn't that translate to 3V instead of 1.5v? I think that needs to be taken into consideration. And if you put 20 AA's into a boomer, wouldn't you end up with 30v of DC instead of 15V? And would that damage the box???
You might be better off putting nickel cads (rated at 1.2v) in such that you end up with a total close to 15 volts. That would be very similar to what JVC838 did with is very impressive Aiwa 880. He said that the nickel cads deliver more power, just at a lower voltage, so he devised a way to put 11 C-cells into his Aiwa, and let me tell you.... that thing pounded like it was plugged into the wall. Sounded freakin' amazing...
All in all, a D rechargeable is better than double AA rechargeables. First, more reliable (1 bad cell amongst the 20 will short out the whole array) since the more cells you have, the more likely to have a dud amongst them. Then there is the mAH issue. AA's max out around 2600-2800 mAH while D's @ 10,000 mAH is common. Even alkaline D's are something like 10k mAH. So with double AA, you get 5200 - 5600 mAH. You'll be recharging twice as often as with D cells.
Are you getting some kind of great deal on those lithium AA's Johnny. Because I love those energizer lithiums. They last 3 times as long as alkalines. The only thing is the cost, which is like outrageous. What, $2 a piece? Let's see, if you use 2 per cell in a 10 cell boombox, that would be like $40 worth of batteries. 
Superduper said:Are you getting some kind of great deal on those lithium AA's Johnny. Because I love those energizer lithiums. They last 3 times as long as alkalines. The only thing is the cost, which is like outrageous. What, $2 a piece? Let's see, if you use 2 per cell in a 10 cell boombox, that would be like $40 worth of batteries.
Normally I pay about a $1 a piece off ebay 40 - for $40-$45 shipped, sometimes a little cheaper... I love em and use them in everything - only problem is they last so long you never have to change 'em (camera once every couple months+)
and the "ultimate" last 8 times longer!
an 8 pack at best buy is $20
That is true -- they do last a long time. However, that is in AA applications. Putting them into a boombox calling for D cells -- I don't think you are going to get anywhere near that kind of life unless you never crank them up since they are calling for larger batteries to begin with and (2) lithium AA's might only equal 1 alkaline D in terms of mAH.
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