Good quality battery connectors

NCFRC

NCFRC

North Country Fun RC Well Known Member
Just a quick test I did to see how efficient a JST connector is.
This test was done at a very modest 4 amp load.

The pack used was a Nanotech 750mah 1S battery.

I tested it first thru the stock JST connector and then with the connector
cut off and alligator clips for load and small voltage sensing clips.

The voltage discharge time with a JST connector was 15 sec to 4.0v and 235 sec. to 3.70v

The voltage discharge time w/o the JST conn. was 40 sec to 4.0v and 320 sec. to 3.70v

The average battery voltage over the entire discharge was 3.67 volts vs. 3.73 volts ,,,,
quite a difference.

If this connection was soldered / hard wired I'm sure it would be even better.

Just a little info for the over thinking techno's out there. :)
 
Hi mate most use XT60 which will take 60 amps , there is also XT70 70amp and I use 4 mm connectors on my 6 cell as its over 70amp pull , even the old deans will take more amps then the JST
 
I was just using the basic JST connector as an example . If you guys are using a true 60-70 amp connector , thats awesome.
We used Sermos / Power Pole and Deans when we were racing round cell RC cars / trucks which were rated for 30-40 amps.
The die hard racers all soldered there batteries in , even though most would end up with a cold solder joint.

4mm , as in bullet connectors ? That and 5mm seem very popular with hard case lipo's.
 
Some run 6 cell ,its not a problem you get ESC that work on 6 cell and motors too ,then use a bec to reduce voltage to run FCB etc
 
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