I found some 1000mA AAA batteries the other day. I can't remember the brand though. The price wasn't bad either. Batteries keep getting better and better.
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Except for the Automag in front, its usually the man behind the equipment that counts. -
Is it better to get the flat top or the ones with the nub (like normal alkaline)?
And why do the places quote 1.2 volts for the AAA. I thought they were supposed to be 1.5volts.
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The flat top batteries are easier to solder leads onto and they take up less space once the leads are installed which is a major consideration when installing in a battery pack.
All nickle based batteries are 1.2v per cell. That is why all battery packs are a multiple of that value. ie; 7.2v volt packs = 6 batteries in series, 9.6 v = 8 in series, 14.4v = 12 in series, 16.8v = 14 in series, etc.Except for the Automag in front, its usually the man behind the equipment that counts.Comment
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THanks for all the help!!
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Interesting... I just ordered some AAAs with the same idea in mind... Will post back up or start a new thread when the pack is complete.Last edited by KC; 12-11-2006, 02:11 PM.Comment
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Cool,
Which ones did you get? DId you get them online? LEt me know how it goes. I'l still trying to decide where and which batteries I want to buy.Comment
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Just an FYI
Well I found an online site that built the battery pack using 1000 amp/hr AAA for $47.50 Definitely ended up being a better deal than for me trying to build one.
Check them out: www.onlybatterypacks.comComment
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Hey DocRocker.. Did that online site ever get back to you on that battery pack.. and if so what do i have to do to get the same one ordered.Comment
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Hey Promethion,
They got my battery pack to me quickly and works great. They placed 2 layers of heat shrink on the pack so I had to remove one to make it fit inside the battery pack. I would do this again anytime.
Just email them and let them know what you want. Ask which rechargable batteries they have to offer. They'll make you send in your old pack to copy and to use the battery terminals and stuff. Not bad for $47
Originally posted by promethionComment
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Now where can i get the battery terminal connectors for this battery pack so i can get two made.. Any help in this area would be great.. :)
Thanks for the info DocRocker............Comment
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Good Question... I have no idea. Good luck finding them. You may need to get creative and make your own.
Originally posted by promethionComment
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i just had a new pack built and i picked it up today.test fitted it and it was perfect.it looks pretty cool with the green shrink wrap they used and they are 850's,that was the highest they had sop i went for em.grand total was more costly than i wouldve hoped.it ended up costing me my original battery and $60.but what ever the cost to get a better battery.only problem is that i have no clue whether or not my original battery had dead cells.im pretty sure it did because it held a full charge for all of maybe an houw and a half .i shot maybe 1000 times.im gonna try my hand at making my own pack and seee how cheap it can be.it seems to be pretty simple.ill let you guys know soon.Comment
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i was lookin around for some more batteires and does the type of battery matter?
i see alot of batteries that are supposed to be used with high use items such as cameras and mp3 players.can these still be used in our applications?Comment
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since everyone is so interested,i ended up doin the same as some one did above but my grand total was $28.37,i bought some batteries off ebay and they are pretty good(fujicell)they are 1000 mah and have ENGLISH ON THEM,so i figure they gotta be reliable plus the store i got em at is in the next city.bought some wires and shrinkwrap on ebay as well and they work perfect,i actually have way too much wire.all i need now is another terminal so i can use both packs.any one get any luck in finding one?Comment
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NiMH Batteries
A good place to buy NiMH cells is http://www.nimhbattery.com/, the top three battery manufactures are Sanyo, Panasonic, and Saft in that order. If you want a quality cell go with one of those three, thats not to say the china companies will not work they are just very cheaply made. And dont always buy the highest capacity cells from a no name company, just b/c they advertise high capacity doesn't mean it is, but a cell from "the big three" will have the capacity they are rated to.
As far as charging goes a genral rule of thumb for consumer cells in "1C" what that means is 1 time the capacity. For example the max charge current for a 1000mAhr cell should not excide 1000mA or 1A. The lower the charge current the longer it takes to charger, if I charge a 1000mAhr cell with 250mA it will take about 4 hours to charge. Just devide the charge current by the capacity.
Some of you have mentioned that you have made the pack your self, how are you joining the cells? It is very damaging to the cells if you solder to the terminals the heat from the soldering iron damages the electolytes in the cells, the correct method is with a spot welder.
I am an electronics engineer for a prower products company in NJ and I have be doing R&D on battery products for the past few year, I can say I know a thing or two about the subject.
:)Comment
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