Battery wire length

[jazsop]

Finally getting my 700 built. Now for the battery hook ups and wires. I am using two 6s packs. How long is to long on the wires to the esc from the batteries. I have one that's 29 inches but its 10 gauge the other is 23 inches. Is this to long. These measurements are from the base of the battery to base of the esc. Please don't laugh. I'm just trying to make it look neat. My 550 v3 is a lot easier to load and unload. Just on Velcro strap. Non of this sliding tray stuff.

[sconel]

I've built two 700's and each time checked out every picture of wiring that others posted, trying to get the shortest and easiest wiring. Shortest wire and easiest don't necessarily go together that well with two packs.

From what I understand, too much wire causes more resistance than is good for the esc. For my Castle Creations esc's, they give me a number of whats called RIPPLE to calculate, and stay below. Its directly related to how much wire is used, what size of wire, and if the connectors are high current. BTW, both my 700's used 8 gauge wire to help reduce Ripple. My 1st build, had fairly high Ripple with 10ga wire the1st time, redid it with 8ga from then on. They are/were well within the Ripple parameters from Castle Creation.

I can post a pic of my packs if it will help, but I'm sure there is a pic already posted somewhere here.

[ranchhand]

Deleted

[jazsop]

I rearranged the batteries and made my esc have a y harness. That shorted things up a bit. So hopefully I'll be okay now. I'm using a Hobbywing platinum ESC 100a hv esc. Just spot flying till the 160a comes out. I don't like cc ESC's. To hard to program and to many bad reports here on helifreak. I know it's under esc'ed but its new and I'm just taking it easy on it for now.
Flew it today and my esc is running at 105 degrees, so I'm not working it to hard.
But I did get the wiring figured out.

[Martinshelis]

Originally Posted by jazsop

Finally getting my 700 built. Now for the battery hook ups and wires. I am using two 6s packs. How long is to long on the wires to the esc from the batteries. I have one that's 29 inches but its 10 gauge the other is 23 inches. Is this to long. These measurements are from the base of the battery to base of the esc. Please don't laugh. I'm just trying to make it look neat. My 550 v3 is a lot easier to load and unload. Just on Velcro strap. Non of this sliding tray stuff.

29 and 23 inches??? You must have a heck of a loop in there? I just soldered up two 6s packs to make 12s on my goblin today and my esc wires are about 4 inches long with a 3 inch jumper between them and the wires from the batteries are about 5 inches. I did mine exactly like this picture but with a little more length to make pulling the plugs apart easier.

[Excalibur3]

I don't know how long mine are but I didn't shorten anything.
I'm running two Pulse 6s 5000 65c lipos with ec5's and the castle edge 160 hv with an ec5 on it. Then I have the losi ec5 (series) y harness and with all that it runs perfectly.

Trex700Pro/Trex700LTop/Trex500L/14sgh T$3D

[atkin]

what happens if you have too much "ripple"? The esc blows up your cat, heli, and wife?

edit: I re-read your post, it looks like it's just hard on the esc. It would be interesting to hear from one of the electrical engineers on this. My esc wires are 6 or 7" It's easier to get them around the nose of the nose.

Originally Posted by sconel

I've built two 700's and each time checked out every picture of wiring that others posted, trying to get the shortest and easiest wiring. Shortest wire and easiest don't necessarily go together that well with two packs.

From what I understand, too much wire causes more resistance than is good for the esc. For my Castle Creations esc's, they give me a number of whats called RIPPLE to calculate, and stay below. Its directly related to how much wire is used, what size of wire, and if the connectors are high current. BTW, both my 700's used 8 gauge wire to help reduce Ripple. My 1st build, had fairly high Ripple with 10ga wire the1st time, redid it with 8ga from then on. They are/were well within the Ripple parameters from Castle Creation.

I can post a pic of my packs if it will help, but I'm sure there is a pic already posted somewhere here.