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Old 11-26-2008, 06:26 PM   #1
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Default LiPo LiOn vs. NiMh NiCd

i was just wondering what u guys think about batteries


eg. which type is better
more durable
heats up faster
etc..

Thanks

BTW i think NiMh is the best
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Old 11-26-2008, 06:56 PM   #2
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If you want high voltage right after a charge then the NI-Mh is better, but you don't get very good run time. Although over all I think Li-po's are some of the best batteries out right now and if you treat them right then you won't have any problems. Also they have a little longer run time then the Ni-Mh packs, and they will last you for years and still perform about the same when you bought them, unlike with the Ni-Mh pack that can last about 6 months to a year (if you are racing) untill they are no longer as strong as they should be. Ni-Cd is really old school, but they can with stand being over charged to a point a little better then most new packs, although they really arn't up to the task if you are to use the MM 7700 based off of your screen name.

As for Li-ion I havn't used them in RC so I don't know much about them, and I haven't used the A-123 cells.
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Old 11-27-2008, 04:44 AM   #3
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alkaline!
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Old 11-27-2008, 05:03 AM   #4
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I'm going to have to agree with Carbon Madness, LiPo's are the best thing out right now... Although I haven't used A123's or Lion yet either. I have used NiMh's NiCd's, and LiPo and I hands down like LiPo's the best. It's all I buy now.

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Old 11-27-2008, 05:43 AM   #5
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i am not too sure about this, but i have noticed with the car i have run in the past few months, the Lipo works the best with my brushless system, easy 20 min runs. i have a matched Nimh 3800 i bought used, ran it a couple of times in my xxx4, did not have the run time or punch i wanted, so i shelved it, then almost a year later pulled it off the shelf, charged it, put it in a stock slash, got 15 min of good run time before the battery dumped. now, the Lipo gets 10 mins on the very same truck. maybe cheap electronics need Nimh's? my lipo is over a year old and balanced once in a while, even then only about .025 difference. does the brushed motor draw that much more than brushless?
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Old 11-27-2008, 07:01 AM   #6
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what lipo do you have ? What is the discharge rating ? Brushless is a lot more efficient then brushed motors . Depending on what lipo you have , if you only got 10 minutes on your slash something is wrong . I run Orion 3800 30C lipos , in my XXX-T CR with 10.5 turn brushless I get 30 minutes easily . In my XXX-CR with a 10 turn brushed I get 15 minutes easily . The Traxxas 12 turn doesn`t even run as fast as a regular Trinity , Reedy , or Team Checkpoint 12 turn . Maybe the Titan motors are a lot less efficient then a regular motor with same turns .
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Old 11-27-2008, 07:03 AM   #7
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Lipos have a higher voltage then Nimh and they hold that voltage a lot longer also . Unlike Nimh where they dump around half way through a race .
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Old 11-27-2008, 07:05 AM   #8
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LIPO IS BY FAR THE BEST!!!!
THERE IS NO COMPARISON
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Old 11-27-2008, 07:52 AM   #9
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Quote:
Originally Posted by Briguy View Post
Lipos have a higher voltage then Nimh and they hold that voltage a lot longer also . Unlike Nimh where they dump around half way through a race .
WELL... That's true and then it isn't, Lipos hold a higher voltage longer, but NiMh's start out with a higher voltage. A Lipo starts at 8.4V, and a NiMh can start as high as 9.0v.

J
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Old 11-27-2008, 08:06 AM   #10
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Quote:
Originally Posted by pyro18t View Post
WELL... That's true and then it isn't, Lipos hold a higher voltage longer, but NiMh's start out with a higher voltage. A Lipo starts at 8.4V, and a NiMh can start as high as 9.0v.

J
That holds true for maybe 20 or 30 secs into the run time. I did my own test with my GFX and Lipos hold more voltage during the 35 amps discharge.

For everything requiring 6 cell I run Lipo, I use my old NIMH for 4 cell only.
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Old 11-30-2008, 06:01 AM   #11
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it is a well used SMC 5000 Mah, 20c. i ran it yesterday with a better motor and maybe burned through a quarter charge in a 7 min main. i think it was the cheap traxxas can motor that sucked, it did the same thing in a Losi RTR desert truck, simular cheap can motor.
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Old 11-30-2008, 09:13 AM   #12
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I ran a nimh at the track, and then tried my 5000mah 25c lipo, my car was way faster with the lipo. I am running a 17.5 and i have yet to run the pack till it cuts off. Lipo is way better. and no maintenence too.
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