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Old 01-11-2009, 06:52 AM   #46
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I have a hard time believing the enerland cells are going to last substantially longer than the Zippys. Even if they last longer, the you just replace a zippy at 1/3rd the cost of a typical enerland pack. The cost premium isn't worth the extra money for typical usage IMHO.

Just buy a bunch of Zippys. You will not be disappointed. I have a hard time justifying paying premium prices for lipos anymore.
hi, any big diff between 4s 5000 n 5s 5000 zippy? My 4s 4100 lipos are hot on my 7xl. I hv downgraded to 9xl. I dun need crazy speed just raceable.
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Old 01-11-2009, 08:15 AM   #47
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hi, any big diff between 4s 5000 n 5s 5000 zippy? My 4s 4100 lipos are hot on my 7xl. I hv downgraded to 9xl. I dun need crazy speed just raceable.
Yes here is the math difference for you I will assume you are talking about the Zippy-H lipos 20-30C

both are 20c - 30c burst and 5000mah so that works out like this
(5000/1000) x 20 = 100 amps
(5000/1000) x 30 = 150 amps burst

4s 5000 20C-----4s x 3.7v = 14.8v

5s 5000 20c-----5s x 3.7v = 18.5v

Watts = Volts x Amps
14.8 x (5000/1000) = 74
18.5 x (5000/1000) = 92.5

so the 5s has more stored power

4s and 5s require different motors to be efficient.
I run a 2200kv on 4s and its wicked fun
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Old 01-11-2009, 08:33 AM   #48
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Originally Posted by tdeal823 View Post
Yes here is the math difference for you I will assume you are talking about the Zippy-H lipos 20-30C

both are 20c - 30c burst and 5000mah so that works out like this
(5000/1000) x 20 = 100 amps
(5000/1000) x 30 = 150 amps burst

4s 5000 20C-----4s x 3.7v = 14.8v

5s 5000 20c-----5s x 3.7v = 18.5v

Watts = Volts x Amps
14.8 x (5000/1000) = 74
18.5 x (5000/1000) = 92.5

so the 5s has more stored power

4s and 5s require different motors to be efficient.
I run a 2200kv on 4s and its wicked fun
so if i m not wrong 5s 5000 for 9xl, 4s 5000 for 7xl?
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Old 01-11-2009, 10:12 AM   #49
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I know a bad connection between the motor and the speed control and or a bad connection in the motor cause hi current draw but my motor never became excessivly hot , the battery seemed, hot forgot to temp ,and the speed control fan never came on. I am not sure if I have a radio problem,a motor problem, a connection issue or a speed control issue. There seems to be no drive train problem. Again for a few minutes it runs good then slowly gets worse...hesitation then slow and sometimes no response until it sits for awhile. I guess I will have to send the esc in for evaluation along with the motor and radio!
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Old 01-11-2009, 10:53 AM   #50
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OK I found one wrong thing....the screws I used to mount the motor are 1mm to long. The end of the screw is just touching the winding inside the motor. I see "a little black" on the winding as if shorted. Maybe the winding was shorting against the motor case? Over drawing current? Is this possible and therefore causing the esc to go into cutoff mode?
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Old 01-11-2009, 08:51 PM   #51
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bump
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Old 01-11-2009, 10:32 PM   #52
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The fan on my MMM broke too.

It is supposed to turn on before the ESC arms. aka when it is on and plugged into Rx but your transmitter isnt on yet. Ill have to send it back to castle, but its cool enough out now that it doesnt need it yet, but by summer it will so I will send it back eventually.


What motor are you using. It shouldnt have shorted unless you screwed through the magnet wire coating. if your worried add a bit of tape or sealent to the end of your screw.
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Old 01-19-2009, 11:42 PM   #53
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Does anyone have this pack: http://www.hobbycity.com/hobbycity/s...0C_Lipoly_Pack
It says that it is 160 mm long. Is this right?
The RC Product Design conversion that I have in my 777 is only about 142mm long. I have always run Maxamps pack which are 138mm long without fitment problems. I want to get this pack but I am thinking it is not going to fit. Can anyone measure to confirm? Thanks,
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Old 01-20-2009, 01:18 AM   #54
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Originally Posted by steve671 View Post
Does anyone have this pack: http://www.hobbycity.com/hobbycity/s...0C_Lipoly_Pack
It says that it is 160 mm long. Is this right?
The RC Product Design conversion that I have in my 777 is only about 142mm long. I have always run Maxamps pack which are 138mm long without fitment problems. I want to get this pack but I am thinking it is not going to fit. Can anyone measure to confirm? Thanks,
hi, I m using 4s 5000 zappy lipo it's 160mm, longer than my 4s 4100 lipo.
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Old 01-20-2009, 06:10 AM   #55
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Originally Posted by steve671 View Post
Does anyone have this pack: http://www.hobbycity.com/hobbycity/s...0C_Lipoly_Pack
It says that it is 160 mm long. Is this right?
I have 2 of these packs they fit in my Losi tray
Not sure of the length sorry
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Old 01-20-2009, 06:20 AM   #56
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Originally Posted by tdeal823 View Post
I have 2 of these packs they fit in my Losi tray
Not sure of the length sorry
that's y I bought d losi tray hope it will fit.
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Old 01-20-2009, 07:25 AM   #57
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Originally Posted by tdeal823 View Post
I have 2 of these packs they fit in my Losi tray
Not sure of the length sorry
Any chance you could measure that pack for me?
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Old 01-20-2009, 08:23 AM   #58
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Originally Posted by steve671 View Post
Any chance you could measure that pack for me?
bro its 160mm i measured
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Old 01-20-2009, 08:56 AM   #59
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bro its 160mm i measured
Thanks.
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Old 01-20-2009, 10:07 AM   #60
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FINALLY!!!!!! My new battery, has arrived. While I can't really tell the difference in weight(128 grams), there is a very Clear and Obvious difference in size. I've just installed the new connectors and fit it in the 8ight E. It fits much better, clearing the body easily. Take a look at the difference!

http://i304.photobucket.com/albums/n...g?t=1232470773

http://i304.photobucket.com/albums/n...g?t=1232470824

http://i304.photobucket.com/albums/n...g?t=1232470859

http://i304.photobucket.com/albums/n...g?t=1232470951

This is the Losi hard case li-po

http://www.losi.com/Products/Feature...rodId=LOSB9864

sitting next to the Rhino 4900 pack, usually found here, though I can't find it right now:

http://www.hobbycity.com/hobbycity/s...2&v=&sortlist=
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