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HomeAircraftHelicopterMain Discussion › What is so good about life batteries?
01-02-2011 07:18 PM  7 years agoPost 1
Michaelm0268

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Louisiana

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What is so good about life batteries?

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01-02-2011 07:24 PM  7 years agoPost 2
jsenicka

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Eagle River, WI

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6.6v means no regulator
No self discharge
4c charge rate
Sustained 6.6 from start to finish
Light weight as compared to nicad

Jim Senicka
Team Manager, GrandRC Flight Team

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01-02-2011 07:26 PM  7 years agoPost 3
Michaelm0268

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Louisiana

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So people are using these instead of a regulator. why not just use a regulator?

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01-02-2011 08:06 PM  7 years agoPost 4
Peter Wales

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Orlando Fl

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To need a regulator, you need a bigger battery than 6v, such as a 2s LiPo. So, now you need a LiPo and a regulator rather than just a couple of A123's.

The other thing is that if your servos wont take 7.4v from the LiPo, you need to regulate all of the power going into the receiver and that could mean a big regulator.

Most servos will be happy with 6v from the Rx, but the gyro and servo will probably need a small regulator no matter which option you choose.

Peter Wales
http://scalehelicopters.org

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01-02-2011 08:11 PM  7 years agoPost 5
Frank Bostwick

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Cincinnati Ohio

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A regulator is an addition component that will fail (some day). There are several other advantages to A123. The discharge curve is almost flat. That means your system will preform exactly the same throughout the cycle. The major reason regulators became popular in the first place was to feed your system a constant voltage thus constant performance.(No voltage drop) The discharge curve on A123 means a regulator could be considered obsolete. That may be an over statement but not by much.

A123 is extremely hardy, I have never killed one and I crash a lot.

They charge fast at 10 min.

They last hundreds and hundreds of cycles

Not a fire hazard

RX power systems dont really need it but they have a high discharge ability

RIP ROMAN

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01-02-2011 08:24 PM  7 years agoPost 6
Michaelm0268

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Louisiana

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They sound like they have no downside maybe I should start looking into it.

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01-02-2011 08:48 PM  7 years agoPost 7
Frank Bostwick

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Cincinnati Ohio

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Kinda heavy
You can get a Dewalt 36v pack on ebay for around $120, 10 flight packs worth...

RIP ROMAN

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01-02-2011 10:54 PM  7 years agoPost 8
McKrackin

rrProfessor

Lucasville,Ohio

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I have a 2100mAh 2S LiFe and an 1800mAh 2S Lipo and the Lipo is heaviest by a long shot.

I don't know if you want info on RX packs or flight packs but my LiFe RX pack is superior to the Lipo in every regard.

One thing about LiFe batteries though....they check the same voltage until they are dead so keep track of how much use they get.

I started my heli the other day and when I backed away to take off,the servos wouldn't move and I couldn't shut it off.Had to close the fuel line to kill it.

I forgot to charge the pack.User error.

I literally never use the word literally right.

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