Safe to use XT60 conector for 2x5000mah 20c packs? For F550 hexa build.

[aForcefulThrust]

I have some 4000mah and 5000mah 4s packs I want to use on my F550. They came with a weird bullet connector type plug that doesn't fit my parallel charging board, or fit any other plugs I have. I want to use these packs single, or maybe sometimes 2x packs in parallel for an 8-10Ah pack. Just wanted to ask you experienced pilots, and see what you guys think. I'd hate to burn a plug and crash because of a $1 connector, and I would also hate waiting for new connectors to come in :/ Really want to continue charging with my XT60 parallel charging board too. Can the XT60 handle the current?

 

[aForcefulThrust]

I'm about to cut off these connectors and put on some XT60 soon But I would hate for that to cause a crash later..
Did some basic math, although math is not my strong point.
Assuming I use the max, 2x 5000mah packs parallel..
2x5000mah 20c packs = 10 Ah
10Ah x 20c = 200 amp draw!?!? Maybe I'm doing this wrong..

Anyone?

 

[ChrisViperM]

In your calculation you must work out the amp draw from your motors rather than the maximum your LiPo's can provide. After so many years in the RC business, lots of researching and testing, I decided to make my life simple and always stick to this rule:


LiPo's up to 3S = XT60 plugs View attachment 5095



LiPo's 4S and up = EC5 Plugs View attachment 5096

But watch out: EC5 plugs you get as bullet style or banana style. You don't want banana style since they wear out with time. Have a read here:

http://www.rctech.net/forum/radio-electronics/618389-ec5-connector-banana-vs-bullet-plug.html

Here is a video on the basics of soldering the EC5 plugs:

http://www.youtube.com/watch?v=-qXKSghfWSQ&feature=related

With only using XT60 and EC5 plugs my charging setup is kept very simple and with these plugs I am always on the safe side. There is almost religious discussions all over the net about RC plugs, but this two plugs have never let me down.

Cheers

Chris

 

[koolkiwikat]

Your maths are correct but your hexa wont pull anything near that(brushless buggy yeah!), You would be lucky to pull 40 to 50amps with a load(XT60's are 60amp with wiggle room), its the current you pull thru the system that matters, if your into AP or just cruising it, you will be mostly hovering which does not strain the system as much as hardcore punchouts etc which pull alot of current briefly

In a nutshell F550 with some gear, XT60s will be fine

 

[aForcefulThrust]

Thanks for the advice guys

 

[DucktileMedia]

I dont know about the 3s max theory for xt60's. The higher the voltage the lower the current, right? I've been using them on my Y6 with 2 4000 4s on avrotos/11x5, 12x3.8's no problem. I realize if one battery fails I am not accounting for that but I am pretty sure they will be ok. I am also using them on my large octo now. Perhaps i will have to bump everything up a notch. I am noticing a lot more heat lifting the av200/360 setup.