Battery Connectors
 

I just got finished installing a Mamba Monster Max ESC in my brushless truggy. Since the MMM uses 6.5mm bullet plugs I decided to use 6.5mm bullets to connect the ESC to the motor. Then I looked at my battery and I had Deans Ultra plugs on them and they looked kinda wimpy. I started to think, the MMM ESC can handle 150 or so amps, the Motor is rated at 120 amps, the battery can supply 100 amps constant and the Deans are rated at 70 amps?? Plus the Deans are a royal pain to get apart sometimes. I never had a problem with my Deans but that is a lot of expensive electronics and I didn't want to have a meltdown because the plugs couldn't handle the voltage. I also have an EagleTree logger and did some testing on the track. The logger showed spikes of 160 amps coming thru my system, wow that is a lot of juice!! Granted this is just for a few miliseconds but still it had me worried. I started looking for something else and in another forum someone mention Losi EC5 plugs. I ordered a set and I have to say I am liking these plugs, much bigger than the Deans so they should be easy to pull apart and they use 5mm bullets which should be able to handle 150 amps. Here are some pictures of the Deans next to the EC5 plugs.

http://i142.photobucket.com/albums/r...3/DSC04634.jpg

http://i142.photobucket.com/albums/r...3/DSC04636.jpg

direct solder?

I have been checking them out too. I think the next big project (8th scale brushless again), I will have to get some of these. I will still use deans for my 10th scale though.

Yes there direct solder. Really easy, 1) tin wires, 2) drill a small hole in a wood block, place the bullet in it, 3) heat with soldering iron, fill bullet with solder, 4) stick wire into the bullet, while applying iron, 5) remove iron allow to cool, 6) After cooling, stick bullet into connector, your done.

Do the Losi plugs have no way that prevents a screw up like Deans do? With Deans, you can't plug in wrong. Losi's look like they'll let you screw up??

I went with one of Castles bullet conn - they're 5mm and 150a rated.

if you mean polarized or "Keyed", yes they are. One side is round and the other is a semi-circle so you can only connect them one way. So as long as you wire it up correctly you should be ok. Also, one plug is smaller than the other and the smaller plug fits inside the larger plug. So each plug is keyed (large/small) as a set and each plug is keyed (round/semi-circle prongs).

looks like, if you look at the left side of the plug, you could see that its a circle shape and the right side is a D-shape, correct me if im wrong

cm367700, you are correct, that is exactly what they look like.

Thanks for reply and clearing that up, can't tell from the pics and this is the 1st time I've seen them - I didn't think they would do something like that, but you never know.

I'll give them a try when I get a chance.