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Old 26-11-2007
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Default Sadle-pack Lipo

Hello dudes,
A simple question: Does anyonde know about sadle-pack Lipo's ... that are made with a hard casing!
Our Belgian RC-association seems to have decided that Lipo's will be in 2008 allowed as long are the have a hard casing. I know that Sadle-pack Lipo's exist, but have never found any with a hard casing.
I would like such a Lipo for in my X10 Pred.
I allready am the proud owner of two trakPower Lipo's which are simply GREAT, so EASY to use.

Maybe another idea, that just popped up ... maybe it is possible to buy a soft-casing-sadle-lipo and make some hard plastic casings for it?
Is this a crazy idea.
Any thoughts on what I should keep in mind when making this?

thx!
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Old 26-11-2007
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Trakpower are doing one as we speak, Mark Christopher will read this in time, and hopefully give you an idea of timescale.
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Old 26-11-2007
ttboyy2k ttboyy2k is offline
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Dan, do you know if Trakpower will make a saddle pack lipo in a hard case that will fit into the X-6 2/4 cell configuration?
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Old 26-11-2007
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I have no idea, in my mind the technology (2C) means that if a pack is split, it would have to be in half, could be wrong though.

However in my opinion, if you're going to lose the weight of nimh cells, then what you do have you'll want to pack towards the rear i.e. best to run it across the 6 cell at the back. Then if I was going 100% lipo I'd run the speedo where the 2 cells used to be to get that weight in the centre with a recevier (ideally a smaller one) either also in the same space or just to the side and in my case the power cap just to the other to keep a very good balance.

I'd really like to try this (anyone lend me a Lipo sometime???) to see how it goes.
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Old 28-11-2007
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The Trakpower Lipo is a 2S1P-Lipo which means it consists of two elements placed in Serial configuration: one pack connected after the other.
So in my opinion, theoretically it should not be too hard of seperating the twe elements in twe separate casings ... in theorie that is
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Old 28-11-2007
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i have been testing some lipo saddles from trakpower, they are still prototype, they are working hard to get them done.
i have tried them in the following, Hotbodies D4, Jconcepts we?, Predator X11, and chris longs X5 ( chris told me the X6 will take the stick pack) they all fitted and with a small amount of work chris felt they would go into his x5. all cars will need a taller battery strap mount as the cells are about 28mm deep
the cells consist of two banks of 3 cells giving 7.4 nominal volts and 4800 mah.
at worksop with a 6.5 bsintered rotor i took 1400 mah out of the pack per run and had amazing punch all the race.
they will be in hard cases with a clever link wire to comply with the new cell rule and a balance port compatable to trakpowers balancer

im not allowed to post pics but if you were at worksop or are at shefield in 2 weeks time come find me and try them for fit in your car

no the big plus point
withoutthe hard case on the pack my D4 was about 10 grams over weight, so the cars will be very near the weight limits, which also increases agility and speed
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Old 28-11-2007
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Quote:
Originally Posted by Lowie View Post
The Trakpower Lipo is a 2S1P-Lipo which means it consists of two elements placed in Serial configuration: one pack connected after the other.
So in my opinion, theoretically it should not be too hard of seperating the twe elements in twe separate casings ... in theorie that is
not as simple you need to get the packs made to the size and allow for capacity
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Old 28-11-2007
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Quote:
Originally Posted by super__dan View Post
I have no idea, in my mind the technology (2C) means that if a pack is split, it would have to be in half, could be wrong though.

However in my opinion, if you're going to lose the weight of nimh cells, then what you do have you'll want to pack towards the rear i.e. best to run it across the 6 cell at the back. Then if I was going 100% lipo I'd run the speedo where the 2 cells used to be to get that weight in the centre with a recevier (ideally a smaller one) either also in the same space or just to the side and in my case the power cap just to the other to keep a very good balance.

I'd really like to try this (anyone lend me a Lipo sometime???) to see how it goes.
if your at sheffield or worksops next one ill lend you a stick pack and charger for the day
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Old 28-11-2007
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Thanks Mark, next Worksop it will be for me.

But to answer ttboyy2k's question, would it be possible to have the two parts of the saddle pack 2 different sizes i.e. to replicate the 4+2 config of the usual X6 layout? As an aside in an X6 I imagine you'll want it as a stick pack for perfromance of getting the reduced weight further back. I'll report back after next Worksop.
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