Lost Glider

What seems to be the preferred type of high volts, high amps battery connector? I thought I would go with Deans (T plug) but tonight I had some problems with them not making contact.

Joseph Frost

Forget about those, most likely immitations. Go for gold plated 5.5mm + bullets that's what I use in heavy current draw application. In few extreme cases I draw with them up to 240 Amps.

5.5mm bullets used in this heavy 12S/10Kw current draw set up.

ron_van_sommeren

Deans plugs ruin my nails.

Note that connectors, apart from arcing when connecting them, don't care about voltage, they only care about current.
So it can be better for connectors, and your nerves, to get them with anti-(sp)arc built in.
Voltage losses (in volt) across a connector go up with current, power losses (in watt, get converted into heat) go up with current squared.

Connector tests, plus pictures
translate...www.elektromodellflug.de/hochstrom-st.-bu..html
Older version of that page, contains some other connectors
translate...www.elektromodellflug.de/oldpage/hochstromst/hochstromstecker.htm
Excellent site, do have a look at the controller, motor, charger, power supply, battery etc. tests.

Connector soldering jig, keeps pins straight in housing while soldering.
wattflyer.com/forums/showthread.php?t=79119

Two connector soudering videos in this list
www.youtube.com/c/Innov8tive8/videos


Vriendelijke groeten Ron
• Without a watt-meter you're in the dark ... until something starts to glow •
• E-flight calculators • watt-meters • diy motor tips&tricks • Cumulus MFC •

Keeping pins straight even when housing softens a bit.

ron_van_sommeren

[QUOTE=ron_van_sommeren;12761691]... So it can be better for connectors, and your nerves, to get them with anti-(sp)arc built in. ...[´/quote]
On the other hand:
"The spark is your friend" (©CastleCreations).

No spark means the (extra) input capacitors are dead, and rest of controller will soon follow. Preferably taking plane down with it
Explanation
Too long battery wires will kill ESC over time: precautions solutions workarounds - RCG

On the other hand, too big a spark is bad for connectors. Not to mention your nerves.
Solution: move the spark to a cheap extra sacrificial connector.
The extra/very thin wire will reduce current, no need for resistor, or choose resistor small enough to reduce spark will still visible/audible. You'll still hear a (weaker) spark as an ok signal/indication.

from
www.mgm-compro.com (professional) &
www.mgm-controllers.com (hobby)

Joseph Frost

Just sold my Giant "C-130 Herc", the last model I was using Deans, never like them after discovering more reliability using gold bullets. Good luck to the new owner.

Last model using Deans, tho only low Voltage-4S each power unit at some 550 Watts.