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Old 07-22-2007, 05:28 PM   #1516
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I bought an Orion 3200 Lipo and after charging it up fine with an ICE charger, I went to test it out. The motor was SLOW and it ran for maybe 20 seconds (certainly less than 30 seconds) and then I lost all power. I tried my battery out on another racer's car and it was dead. I tried to charge it to see what would happen and it said that no battery was connected. I did notice that the battery was warm to touch and that my positive battery lead was very warm to touch. I know I hooked it up correctly as it was the first time running a Lipo so I made sure to hook it up correctly. I took it back to the hobby store I bought it from and they said they will call Orion and probably send it back to them. I was just curious if anyone else had this issue?
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Old 07-22-2007, 06:08 PM   #1517
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Quote:
Originally Posted by GreaseMonkey View Post
I bought an Orion 3200 Lipo and after charging it up fine with an ICE charger, I went to test it out. The motor was SLOW and it ran for maybe 20 seconds (certainly less than 30 seconds) and then I lost all power. I tried my battery out on another racer's car and it was dead. I tried to charge it to see what would happen and it said that no battery was connected. I did notice that the battery was warm to touch and that my positive battery lead was very warm to touch. I know I hooked it up correctly as it was the first time running a Lipo so I made sure to hook it up correctly. I took it back to the hobby store I bought it from and they said they will call Orion and probably send it back to them. I was just curious if anyone else had this issue?
It almost sounds like a short. The negative lead will burn out like a fuse in the event of a continuous short. A mulitimeter would have shown 0V but with the no battery error on the Ice we see the same info. Either that or there was a bad connection somewhere internally. Is your hobby shop going to let you know the end result?

Last edited by kuzo; 07-22-2007 at 06:17 PM. Reason: speEling poRblems
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Old 07-22-2007, 06:15 PM   #1518
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I imagine so. They don't give warranty on batteries so whatever Orion tells them is probably the same thing they'll tell me. If Orion doesn't do warranty then I'm out the price of a battery for 20 seconds of bench run time.
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Old 07-22-2007, 08:58 PM   #1519
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I obviously can't guarantee anything, but I have had GREAT succes with Orions standing behind their products. Specifically their LiPo batteries.
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Old 07-22-2007, 09:40 PM   #1520
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Q'n For those who have the lipo cut off on thier ESC.

when it cuts off, then you put charge back in, how many mah does it take to be full again.

Reason i ask is because after a 5min mod race, i put in around 1900mah energy back into it, then its full, just wondering how close i am to the 6v cut-off point.
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Old 07-22-2007, 09:45 PM   #1521
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Im not a lipo user. But ill go out on a limb here and say that if a LIPO is rated at 3200mah and a safe cut off is 6volts then i would assume that if you ran the pack till the cut off kicked in that it would take about 3000 to 3200 give or take a few mah to recharge the pack.

In your case 3200-1900 you where probably 1000 to 1300mah away from cut off.....
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Old 07-23-2007, 06:29 AM   #1522
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that maybe fine if you are running a 540 and drawing only 5 amps, but in mod where amp draw would be over 40amps, then i doubt a 3200pack can hold on above 6v till 3000mah.

let me restate the question, anyone with a "fully" discharged pack at 6v, know how many mah the 3200 pack would take on charge.

i want to know as it gives me an idea of how many practice laps i can do before the race. also we have 6min races every while.
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Old 07-23-2007, 06:38 AM   #1523
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I've never run my Orion 4800 down to the 6v cut-off, but I have noticed a pretty consistent proportional relationship between voltage and mahs so my guess for the Orion 3200's usable capacity would be 2,286 mahs.
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Old 07-23-2007, 06:44 AM   #1524
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Quote:
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I've never run my Orion 4800 down to the 6v cut-off, but I have noticed a pretty consistent proportional relationship between voltage and mahs so my guess for the Orion 3200's usable capacity would be 2,286 mahs.
2286? pretty specific guess how do you come up with it
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Old 07-23-2007, 06:53 AM   #1525
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2286? pretty specific guess how do you come up with it
I just used a simple algebraic proportion that assumes there's a direct relationship between voltage and mah.

3200(6/8.4) = 2286
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Old 07-23-2007, 06:56 AM   #1526
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The answer depends on how a lipo capacity is rated?

3200mah from a discharge cut off of 5.4v? or 3200mah from a discharge cut off of 6volts.

IF they are rated at 3200mah from 6volts then expect approx 3200mah of charge after cut off. But if they are 3200mah from 5.4v wich I suspect then someone with a cut off should post what MAH to expect.

With nihm its rated from cut off or at least thats how it seems. A dumped nihm is dumped at .9volts(5.4v) will take a charge matching its mah rating. IE 3300gp at 5.4v will take about 3300mah of charge.
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Old 07-23-2007, 07:17 AM   #1527
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anyone tried opening up the Lipo Case?

How much room is in under the case?

Was wondering if it would be possible to add a row of lead weights INSIDE the case??

This will give lower CG (than putting it externally) and also make it look less fugly
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Old 07-23-2007, 07:30 AM   #1528
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Quote:
Originally Posted by GymBeam View Post
anyone tried opening up the Lipo Case?

How much room is in under the case?

Was wondering if it would be possible to add a row of lead weights INSIDE the case??

This will give lower CG (than putting it externally) and also make it look less fugly
I can't wait until Orion announces details about their new "heavy" lipo designed specifically for offroad!!! Only about 3 more weeks...Right Mr. Black?

To answer your question, I've never opened up the case, but I'm 99% sure there's not enough room for lead weights inside it. If you don't want your packs to look fugly, I'd suggest using the 3200's until the new "heavy" lipo comes out and then sell them. That's what I'm going to do with my 4800.
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Old 07-23-2007, 08:31 AM   #1529
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Quote:
Originally Posted by GymBeam View Post
anyone tried opening up the Lipo Case?

How much room is in under the case?

Was wondering if it would be possible to add a row of lead weights INSIDE the case??

This will give lower CG (than putting it externally) and also make it look less fugly
I found there was almost no room at all. The outside of the cells are stuck directly to the case, that way if a cell expands the slightest bit, you see the case start to split apart.
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Old 07-23-2007, 10:16 AM   #1530
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Quote:
Originally Posted by GymBeam View Post
anyone tried opening up the Lipo Case?

How much room is in under the case?

Was wondering if it would be possible to add a row of lead weights INSIDE the case??

This will give lower CG (than putting it externally) and also make it look less fugly
Might look funny, but put that weight in the right places and you will discovered a performance advantage so good you will never take the weight off ....
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