Eneloop battery
#7

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From: camden, SC
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.
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.
#9

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From: Montreal, CANADA
ORIGINAL: w8ye
What is being discussed is the instantaneous current draw capability of the battery
What is being discussed is the instantaneous current draw capability of the battery
#10

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ORIGINAL: vasek
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.
ORIGINAL: w8ye
What is being discussed is the instantaneous current draw capability of the battery
What is being discussed is the instantaneous current draw capability of the battery
#11

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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
http://www.kronium.cz/uploads/manual...Adatasheet.pdf
#12

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From: Montreal, CANADA
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
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
#13

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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.
#14
Senior Member
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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
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.
#15

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From: camden, SC
ORIGINAL: Super08
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.
ORIGINAL: vasek
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.
ORIGINAL: w8ye
What is being discussed is the instantaneous current draw capability of the battery
What is being discussed is the instantaneous current draw capability of the battery
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.
#16

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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.
#17
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.
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.
#18
Senior Member
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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.
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.
#20

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From: camden, SC
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?
will the LiFe's stand up to the current pull on Digital's If and when I go Larger?
#21

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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 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 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.
#22

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From: camden, SC
"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!!
apalsson you say that like it is a bad thing!
I love new things!!
#24

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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?
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?



