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Old 11-23-2010 | 06:17 PM
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Default Eneloop battery



Is there RC packs simular to the batteryin link below? Thanks Capt,n

http://www.fenixtactical.com/sanyo-eneloop-charger.html</p>
Old 11-23-2010 | 06:52 PM
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Default RE: Eneloop battery

Go to: sincityjets.com

Chad will fix you up.
Old 11-23-2010 | 07:24 PM
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Default RE: Eneloop battery

John I have some extras in you need some for ignition packs. Don't use them on the rx as they are low amperage. PM me if you need a couple packs.
Old 11-23-2010 | 08:28 PM
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Default RE: Eneloop battery

I bought some at the local Wally World and soldered up my own. They were pretty cheap. If I remember right the true Sanyo cells had the white top. Hope this helps.
Old 11-23-2010 | 09:10 PM
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Default RE: Eneloop battery

AA 4.8v 2000ma packs at Batteries America. Been using some of them for a few years now and they have worked out very well.
Old 11-23-2010 | 09:54 PM
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Default RE: Eneloop battery

Tom...is that omni-pluse charger a good pick or is there others more prefered? PM me if you prefer. Thanks Capt,n
Old 11-24-2010 | 09:29 AM
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Default RE: Eneloop battery


ORIGINAL: Super08

John I have some extras in you need some for ignition packs. Don't use them on the rx as they are low amperage. PM me if you need a couple packs.
Just wondering... You say they are not good for a RX? I have one in my Corsair 74" on the RX. And it seems to work OK? Should I not be using it??
Old 11-24-2010 | 09:57 AM
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Default RE: Eneloop battery

What is being discussed is the instantaneous current draw capability of the battery
Old 11-24-2010 | 10:26 AM
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Default RE: Eneloop battery


ORIGINAL: w8ye

What is being discussed is the instantaneous current draw capability of the battery
Compared to what? I've been using Eneloop on Rx without problems. They are a "better" NiMh. So if you could use regular NiMh's for a specific application Eneloops will do just fine.
Old 11-24-2010 | 11:03 AM
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Default RE: Eneloop battery


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ORIGINAL: w8ye

What is being discussed is the instantaneous current draw capability of the battery
Compared to what? I've been using Eneloop on Rx without problems. They are a ''better'' NiMh. So if you could use regular NiMh's for a specific application Eneloops will do just fine.
They are not designed for high amperage draws. They are designed for holding a charge over a long period of time. If you look at the info pdf file that is online for them you will see the voltage really drops when place under a good load. They would be fine for small planes with non digital servos. One of my friends told me of one of his friends that lost his plane from a brown out from low voltage under load. No I do not know the detail of how it was determined that was the cause. I have nothing small enough that I would even think of using them in except for ignitions. As for NiMh the only ones I would consider using on the rx would be the 2/3AA size or C size. The standard AA size again are not designed for high loads.
Old 11-24-2010 | 11:06 AM
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Default RE: Eneloop battery

Here is a link to the info sheet. You will see how fast it drops to below 1.1v with only a 4 amp load.

http://www.kronium.cz/uploads/manual...Adatasheet.pdf
Old 11-24-2010 | 11:25 AM
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Default RE: Eneloop battery


ORIGINAL: Super08

Here is a link to the info sheet. You will see how fast it drops to below 1.1v with only a 4 amp load.

http://www.kronium.cz/uploads/manual...Adatasheet.pdf
That's for a single battery. I assume in a 6V pack config. it would show a different curve?
Old 11-24-2010 | 11:39 AM
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Default RE: Eneloop battery

No, the curve stays the same no matter how many batteries you use. What is showing what each cell is doing under load. If you add more cells you will increase the overall voltage but the drop under load will remain the same. If you use two separate packs then you have in effect reduced the load by 1/2 so now the cells will only see a 2 amp load, and will follow the 2 amp curve, etc. The smallest batteries I use are rated for 4 amp constant and around 10 amps peek.
Old 11-24-2010 | 11:49 AM
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Default RE: Eneloop battery


ORIGINAL: captinjohn

Tom...is that omni-pluse charger a good pick or is there others more prefered? PM me if you prefer. Thanks Capt,n

It's a good charger. You need to determine what and how many of what you want to charge at a time, but that's the same thing to be considered for any charger.
Old 11-24-2010 | 08:17 PM
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Default RE: Eneloop battery


ORIGINAL: Super08


ORIGINAL: vasek


ORIGINAL: w8ye

What is being discussed is the instantaneous current draw capability of the battery
Compared to what? I've been using Eneloop on Rx without problems. They are a ''better'' NiMh. So if you could use regular NiMh's for a specific application Eneloops will do just fine.
They are not designed for high amperage draws. They are designed for holding a charge over a long period of time. If you look at the info pdf file that is online for them you will see the voltage really drops when place under a good load. They would be fine for small planes with non digital servos. One of my friends told me of one of his friends that lost his plane from a brown out from low voltage under load. No I do not know the detail of how it was determined that was the cause. I have nothing small enough that I would even think of using them in except for ignitions. As for NiMh the only ones I would consider using on the rx would be the 2/3AA size or C size. The standard AA size again are not designed for high loads.
Well I mean no offense by this but Based on you last two sentences all of my planes should have been kindle wood a while ago! I ONLY use AA size NiMH.
And I have never had a battery fail on me. Now I will say that I check mine after 2-3 flights all the time and always charge before a new flying day.
Old 11-24-2010 | 08:52 PM
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Default RE: Eneloop battery

No offence, but I would guess you are flying smaller planes..large glow or smaller gas. Mine are larger and the eneloops will not work. I wouldn't trust them on digitals or anything larger than about 25%. Also if you are flying 72mhz it is more forgiving, 2,4 does not like voltage drops.
Old 11-24-2010 | 08:58 PM
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Default RE: Eneloop battery

I have a CBA III that indicates my Genuine Sanyo Eneloops stay above 1 volt all the way up to 8 amps and at 10 amps are right at 1 volt per cell. For those who might be interested, don't try to pass more than 4 amps through one of the regular battery/servo type connectors such as a Futaba "J". Ask me how I know and yes I have a scar on my thumb and forefinger as a reminder - that little plastic connector can get real hot.

I flew an AeroWorks Extra 50cc using 5 Hitec HS7985MG's and 1 HS7955TG for the rudder powered by two 5 cell packs handmade with Sanyo Eneloops for just about two years without a single problem. The receiver during that time was an AR7000 Spektrum using dual redundant switches etc. That plane is the one I'm standing beside in my avatar and I'm still flying it today although it now has dual redundant 2300maH A123's supplying the electrons. It does still have it's original Sanyo Eneloop AA 4 cell pack on the ignition.

No, I don't sport fly it, I beat the crap out of it doing things that most folks call me "crazy" for. Things like full throttle knife edge spins into inverted full throttle flat spins etc. Never had a brown out on the receiver nor any sort of battery related issue at all. I'm not saying that there aren't better ways to power your bird but the Eneloops provided me with many many hours of very reliable, very inexpensive fun when I first entered the big gasser scene.

P.S. This pic was taken when it had the Eneloops in it.
Old 11-24-2010 | 09:04 PM
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Default RE: Eneloop battery

Super08 is correct in this.

For smaller planes, using fairly standard servos and not pulling amps of current draw they wouk out ok, but larger planes with power hungry big digitals, in quantity, overwelm the ability of a receiver pack made of Eneloops. They were originally developed for digital camearas and other devices not noted for large amperage requirements. So for transmitters and ignitions they work out very well, even for large planes, but for a flight system they are limiting.

So if you are using them for receiver packs, make it a point to check them periodically. Aside from not having large delivery capacities their only drawback is their charge rate. .4C is about as fast as you want to charge them to avoid heating them up. Handled correctly they function extremely well for a very long time. Fast charging them destroys them quickly.
Old 11-24-2010 | 09:05 PM
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Default RE: Eneloop battery

I am impressed, I wouldn't trust it but it obviously can be done. Yes those connectors are very limiting and can get very hot quickly.
Old 11-24-2010 | 09:17 PM
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Default RE: Eneloop battery

Super you are right I only have 1/4 scale and below. And all my systems are on 72. For grins then answer me this. I am getting ready to start switching most of my planes over to the LiFe's. I run all JR receivers and just found out that they will take voltage up to 9.6( i am a little slow at times) will the LiFe's stand up to the current pull on Digital's If and when I go Larger?
Old 11-24-2010 | 09:20 PM
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Default RE: Eneloop battery

ORIGINAL: Jezmo

I have a CBA III that indicates my Genuine Sanyo Eneloops stay above 1 volt all the way up to 8 amps and at 10 amps are right at 1 volt per cell. For those who might be interested, don't try to pass more than 4 amps through one of the regular battery/servo type connectors such as a Futaba ''J''. Ask me how I know and yes I have a scar on my thumb and forefinger as a reminder - that little plastic connector can get real hot.
I tend to agree with Jezmo and there is plenty of examples out there to evidence what he is saying.
I also use Sanyo Eneloop 5-cell batteries on all my 50cc planes and smaller and without any problems.
Most of my planes have 2 battery packs (2,000mAh each) and two switches. When I had money to burn holes in the pockets, I bought some of the 42% 2-Pac units and put between the switches and receivers but only on a couple of occasions.

Bigger than 50cc, I have normally gone for A123 and a powerboard of some sort

We tend to overcomplicate things in this hobby and be instantly drawn towards all the latest gadgets.
Old 11-24-2010 | 09:28 PM
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Default RE: Eneloop battery

"We tend to overcomplicate things in this hobby and be instantly drawn towards all the latest gadgets."

apalsson you say that like it is a bad thing! I love new things!!
Old 11-24-2010 | 09:29 PM
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Default RE: Eneloop battery


ORIGINAL: skillet92

''We tend to overcomplicate things in this hobby and be instantly drawn towards all the latest gadgets.''

apalsson you say that like it is a bad thing! I love new things!!
HAHAHHA ... who doesn't?
Old 11-24-2010 | 09:36 PM
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Default RE: Eneloop battery


ORIGINAL: skillet92

Super you are right I only have 1/4 scale and below. And all my systems are on 72. For grins then answer me this. I am getting ready to start switching most of my planes over to the LiFe's. I run all JR receivers and just found out that they will take voltage up to 9.6( i am a little slow at times) will the LiFe's stand up to the current pull on Digital's If and when I go Larger?
They have power to spare.
Old 11-24-2010 | 10:06 PM
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Default RE: Eneloop battery

They're great for tx packs. Hold a charge for a very long time.

Rick


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