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Old 10-29-2003, 03:01 PM   #16
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Originally posted by lutach
This pack is amazing I had to charge it two times for a full charge. I'm using the SuperBrain 969 pro.
I thought that those batts require a special charger
are their size the same as NiMh Sub-C?
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Old 10-29-2003, 03:38 PM   #17
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Quote:
MB Racer,

FMA Direct sells the 3270MAH 7.4V pack for around $75 and I could get a 4800MAH 7.4V for around the same price. I've seen 3300MAH NIMH packs going for way more than $75 and with lithium you get an extra 0.2 volts. also, depending of the application, some people even rate the lithium at 4.2V a cell.
That would be crazy having a 2 cell pack instead of a 6.
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Old 10-29-2003, 03:39 PM   #18
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Quote:
Originally posted by lutach
Not this ones. They are 12000mah and they have a continuous 10C discharge and that is 120amps. Most speed control/motor combo will draw about 40-70 amps. This pack is amazing I had to charge it two times for a full charge. I'm using the SuperBrain 969 pro. All I could say is that Kokam and the other brands out there will have some catching up to do.

STOP CHARGING WITH THAT PACK NOW!!!!!! IT is EXTREMELY dangerous for you to be charging a Li-Po pack with a charger NOT designed for it. The Li-Po REQUIRE A Constant Voltage/Constant Amperage charge to be safe. If you exceed the voltage limit of the cell you will have a huge problem!!!!!!! The cells are charge by first a constant amps (until the cell max voltage cpacity) then it switchs to constant voltage and slowly drops the amp rate down to zero. This is the ONLY safe and Recommended way to charge these packs. DO NOT CHARGE THEM AGAIN WITH YOUR SUPER BRAIN!!!!!!!!

Do yourself and the fire department a favor and get one that's designed to charge it!!!!!!!!!!
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Old 10-29-2003, 03:52 PM   #19
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Quote:
Originally posted by Intermision
That would be crazy having a 2 cell pack instead of a 6.
They are only two cells but are totally different in size and shape.
This is a 3 cell 2100 mah 11.1v pack

Quote:
STOP CHARGING WITH THAT PACK NOW!!!!!! IT is EXTREMELY dangerous for you to be charging a Li-Po pack with a charger NOT designed for it. The Li-Po REQUIRE A Constant Voltage/Constant Amperage charge to be safe. If you exceed the voltage limit of the cell you will have a huge problem!!!!!!! The cells are charge by first a constant amps (until the cell max voltage cpacity) then it switchs to constant voltage and slowly drops the amp rate down to zero. This is the ONLY safe and Recommended way to charge these packs. DO NOT CHARGE THEM AGAIN WITH YOUR SUPER BRAIN!!!!!!!!
I was going to say the same thing. I have heard that you have to be very carefull with these packs. Even hard collisions can cause the pack to explode or catch fire.
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Old 10-29-2003, 03:59 PM   #20
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um
supebrain 969 is designed to charge lithium batts...
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Old 10-29-2003, 04:10 PM   #21
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Its not.The language MRC use is deceiving.If you so choose to keep using this charger without the safety precautions that should be built into in{they are not}then be ready to get hurt,burn yourself or your house down or worse.Be warned.When that battery explodes from you using this charger then when you go to sew MRC,they already covered thier own rears because they know that this charger cant safely charge li-poly batts.They didnt say it couldnt charger it,but safely chrge it is something different.
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Old 10-30-2003, 03:34 AM   #22
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Your best bet is to talk to Steve Hill from www.battlepacks.com. He has been working with these batteries and can suggest the proper chargers for them.

Coop
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Old 10-30-2003, 10:41 AM   #23
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You may want to check out the Triton charger. This charger is rated for LiIon and LiPo batteries. A lot of the local flyers have been using this charger with their Lithium pack.
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Old 10-30-2003, 10:46 AM   #24
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I used the super brain once. Now with the new info I should shop around for another one. I used the Triton at my local hobby store and it timed out twice, but it didn't fully charge one of the packs. I'm looking into either a Astro Flight 109, Orbit or Schulze. Thank you all for warning me about the super brain 969.
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Old 11-04-2003, 11:25 AM   #25
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Default Finally got the pics of my Lipo packs!!!!

Here is a picture of the lithium poly pack.
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Old 11-04-2003, 11:26 AM   #26
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Another one.
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Old 11-04-2003, 11:26 AM   #27
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And the last one.
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Old 11-04-2003, 11:27 AM   #28
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how many 5 minute runs do you think you can get out of it with a novak brushless?
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Old 11-04-2003, 11:29 AM   #29
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they look heavy?
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Old 11-04-2003, 11:30 AM   #30
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They weigh 1.4 pounds. That's not heavy at all.
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