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Old 03-04-2008, 04:39 PM   #1
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Default esc and lipo battery question

how come only certain esc's work with lipo batteries? i have a novak dually, lrp a1 runner, and super rooster and dont hink any of them will work w/ lipo batteries, right? now if i decide to go lipo, i have to buy new esc's correct?
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Old 03-04-2008, 05:13 PM   #2
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Wink Lipo ?

I have ran lipo with brushed only esc's with no problem.Anything for a Duratrax Streak to a Novak Cyclone and have never had any problems.Lipo's will make a 27 turn stock motor run like a 19 turn
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Old 03-04-2008, 05:17 PM   #3
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Lipos should just need a voltage cutoff circuit to work with standard brushed ESCs.

http://www3.towerhobbies.com/cgi-bin...&I=LXPGM8&P=ML

I have this working with some cheapo dynamite ESC and it works just fine. I use it on my rock crawler and the battery lasts about 4 hours with a trakpower lipo
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Old 03-04-2008, 05:26 PM   #4
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2-Cell 7.4 volt lipo batteries will work with any standard speed control as long as it was designed for 6 cell 7.2 volt batteries.

The lipo cut-off is not needed but highly recommended. The prevent you from driving the battery lower than the recommended safe voltage level for lipo's.

If you are a racer you should have no problems as you will only be running a batt 5-6 minutes at a time. If you like to go play or bash then you should definitely buy a lipo cut-off.
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Old 03-04-2008, 05:26 PM   #5
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thanks guys! whats the longest running battery that i can get that will work with the cut-off? i see that the novak cut-offs are only for 2, 3, or 4 cell lipos. thanks for helping me out!
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Old 03-04-2008, 05:29 PM   #6
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Forget run time... You want punch. So go with the orion pack!
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Old 03-04-2008, 05:32 PM   #7
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Personally I like the Trakpower batteries since they are encased in hard plastic. I guess it depends on your budget. I hear the Trinity Lipro batteries have built in cutoff so you can bypass the novak cut off circuitry. They are also hard cased and are priced well.
https://www.ssl-stormerhobbies.com/c...ns&pn=TRI20218
Seems out of stock in most places.

The Orion 3200 packs are nice too but you will need to get the cut off circuit.
https://www.ssl-stormerhobbies.com/c...1&showbig=6809
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Old 03-04-2008, 06:04 PM   #8
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Originally Posted by dennyboy424 View Post
Forget run time... You want punch. So go with the orion pack!
actually, i'll be doing more bashing with it than racing, so the run time is more important to me.
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Old 03-04-2008, 06:49 PM   #9
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Default lipo

I prefer the trakpower over the orion because the new trakpower is 25c versus the 4800 orion is only 15c. besides the trakpower is about 20 bucks cheaper
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Old 03-04-2008, 11:15 PM   #10
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I prefer the trakpower over the orion because the new trakpower is 25c versus the 4800 orion is only 15c. besides the trakpower is about 20 bucks cheaper
trakpower 4900 or 5400?
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Old 03-04-2008, 11:49 PM   #11
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Don't make the mistake of running your 2-cell 7.4 volt LiPo pack below 6volts!
It may/will cause permanent damage to the pack (not to the ESC or motor).

If you are not going to get a LiPo cutoff or LiPo compatible ESC then go for the Trinity LiPo pack since it has a built in LiPo cutoff built into the battery pack.
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Old 03-05-2008, 06:10 AM   #12
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trakpower 4900 or 5400?
The Trakpower 4900 pack is 25C, the 5400 is only 16C.
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Old 03-05-2008, 10:40 AM   #13
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Originally Posted by skelly1344 View Post
The Trakpower 4900 pack is 25C, the 5400 is only 16C.
You sure about that ? list where you found these specs.
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Old 03-05-2008, 01:39 PM   #14
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Originally Posted by RB FIVE View Post
You sure about that ? list where you found these specs.
Directly from the Trakpower site, check under the specs for each pack. Also, you can ask BulldawgRC...he'll tell you the same. He's the one that told me about them rerating the 5400's. My guess is that they used the Evo-Lite 5350 cells in the 5400 packs and the 4900's use the standard EVO 25 cells.
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Old 03-05-2008, 05:11 PM   #15
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Originally Posted by skelly1344 View Post
Directly from the Trakpower site, check under the specs for each pack. Also, you can ask BulldawgRC...he'll tell you the same. He's the one that told me about them rerating the 5400's. My guess is that they used the Evo-Lite 5350 cells in the 5400 packs and the 4900's use the standard EVO 25 cells.
so whats that all mean? which will have longer run time and charge quicker- the 4900 or the 5400?
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