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Old 02-11-2008, 07:06 AM   #1
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Default Orion 3600 tips

I was wondering what the safe charging range is for the 3600 orion lipo.

I am looking to find out what is the safe charge rating, what amp can I charge them at before I am hurting the cells.
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Old 02-11-2008, 07:58 AM   #2
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The Orion LiPo's are made by Kokam, and they publish that it is safe to perform a 2C charge (which = 7.2 Amps) but don't recommend it since the gains are minimal and life expectany is reduced.

Please don't let this thread turn into another LiPo charging safety thread...
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Old 02-11-2008, 08:10 AM   #3
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yeah I was figuring that 5 amps would be about as high as I would want to charge them safely
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Old 02-11-2008, 08:22 AM   #4
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On most chargers the rate will be selected for you based on the capacity of the Lipo. In this case, 3600mah=3.6amp charge rate.

I always suggest to people to just go with that.
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Old 02-11-2008, 08:47 AM   #5
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3.6 amps it will take just around 30minutes or so
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Old 02-11-2008, 09:10 AM   #6
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If you have a Duratrax ICE and want to get a 2C charge, you just have to specify that the pack mah is 2x the actual, then set the max charge to 50%.

Example: 3600mah - set pack mah @ 7200mah, then set max charge to 50%. The simple math, 7200 x 50% = 3600. This will allow you to charge at 2C (7.2amps) but still keep the pack at 3600mah max.
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Old 02-11-2008, 10:06 AM   #7
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Quote:
Originally Posted by Marcos.J View Post
3.6 amps it will take just around 30minutes or so
Not even close... after a 5 minute heat, charging my Orion 3600 at 1C (3.6A) on a Checkpoint TC-1030, it takes over an hour to get a full charge due to the CC / CV charge method. The current ramps up to the 1C rate, stays there until the battery reaches 8.4V, then starts to ramp the current back down. The last 20 minutes seem to be at < 0.5A. The charge is complete when the current gets down to 0.10A.
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Old 02-11-2008, 10:28 AM   #8
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Quote:
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Not even close... after a 5 minute heat, charging my Orion 3600 at 1C (3.6A) on a Checkpoint TC-1030, it takes over an hour to get a full charge due to the CC / CV charge method. The current ramps up to the 1C rate, stays there until the battery reaches 8.4V, then starts to ramp the current back down. The last 20 minutes seem to be at < 0.5A. The charge is complete when the current gets down to 0.10A.
Agreed, That is why I do the 5amp thing, gets me there in about 40 min, about same as my 4600's at 7.5. What do you guys use as your voltage cutoff on your speedo? I was hoping some guys in the know at orion would jump in on the chargre rate though.
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Old 02-11-2008, 10:30 AM   #9
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I have found the same thing as Carbon Joe. The really nice thing is that you don't really need to have the pack full. I usually take my batteries off when the CC-CV slope reaches 1.0A as you can charge for another 20 minutes to get something like 200ma? Not worth the time, especially when the voltage difference is negligible (I race modified off road so I really don't notice at all).
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Old 02-11-2008, 10:30 AM   #10
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Quote:
Originally Posted by CarbonJoe View Post
Not even close... after a 5 minute heat, charging my Orion 3600 at 1C (3.6A) on a Checkpoint TC-1030, it takes over an hour to get a full charge due to the CC / CV charge method. The current ramps up to the 1C rate, stays there until the battery reaches 8.4V, then starts to ramp the current back down. The last 20 minutes seem to be at < 0.5A. The charge is complete when the current gets down to 0.10A.
thats weird my buddy ran the orion 10.5 motor with the 3600 pack for 8 minute heats then charged it as soon as he came on the track and about 30 minutes later it was fully charged. He was charging it at 3.6 amps with the checkpoint charger. My Core 5000 lipo pack takes about 45 minutes to be fully charged after a 5 minute heat in mod.(i also use the check point charger)
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Old 02-11-2008, 10:31 AM   #11
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delete- double post
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Old 02-11-2008, 10:34 AM   #12
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Agreed, That is why I do the 5amp thing, gets me there in about 40 min, about same as my 4600's at 7.5. What do you guys use as your voltage cutoff on your speedo? I was hoping some guys in the know at orion would jump in on the chargre rate though.
i deactivated the voltage cut off on my esc ,i just set my radio timer to the actuall heat times (5 minutes) even for practice i practice for 5 minutes and pull it off the track.
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Old 02-11-2008, 10:38 AM   #13
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Same here I run the 3600 with 13.5 and 17.5 and it usually takes 35-40 minutes tops to fill it up.
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Old 02-11-2008, 10:57 AM   #14
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1 Q: is this the li-po that fits the m-chassis?
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Old 02-11-2008, 11:01 AM   #15
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Increasing the charge rate beyond 1C makes little difference in charge time & performance but does appear to shorten lifespan. When charging lipos you will notice that at a certain level the charge rate decreases while the pack is being toped off at approximately 80% or so with a 1C rate. When you increase your charge rate beyond 1C you will see the charge rate decrease sooner with a longer top-off time. In my experience going from a 3.6 to 5A rate will only cut about 5min off the total charge time with a full charge around 3200-3300.

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