Originally Posted by
dakotafroader
What batteries are you running? I had the same issue when I was running the gens ace 40c, and found that the resistance was too much and caused it to melt the solder either at the deans or the bullets going into the battery. I did gear it down and it helped, but also hurt the performance. I've since upgraded to better packs and haven't had the problem since. Hope this helps
The issue was not with the battery or the 40C rating of the battery.
Most issues I see with wires and or batteries getting too hot are the connectors and or bullet plugs. The bird cage style bullet connectors are not suitable in 4x setups that pull down lots of amperage. I run the solid type bullet connectors on both my MMP and RX8 controllers and never have had a problem. I plug straight into my saddle packs and do not use any other connectors. I run the so called "cheap" gens ace 25C rated 6000Mah saddle packs without issue for over 6 months now. If I do run connectors on direct style batteries I run the traxxus style connectors as they handle the amperage better than Deans style connectors.
Don't put a lot of faith into the published C ratings from the manufactures. These are just published values and unless you can verify them yourself or through an unbiased third party, don't put a lot of faith in them.
Even if you bought a 90C rated battery, is this better than a 65C rated battery from another manufacturer? How do you quantify that if you don't have the equipment to actually measure and compare? Do you even need a 90C or 65C battery and if so do you need that much punch at start up? Pulling that much amperage out of a battery at every trigger pull coming out of a turn is in most cases unneccessary and will shorten the length of your run considerably...not to mention that it will add unneccessary heat. It will also spin the wheels and affect traction. We control this with torque limiting in the MMP and Current Limiting in the RX8.
Case in point....I have run both the Peak Racing 5500Mah 90C saddle packs and the Gens Ace 6000Mah 25C saddle packs. Can I tell the difference in punch between the two? Yes...but only if running a speed controller and motor setup that will actually pull down that kind of amperage. Do I need the extra amperage from the Peak 90C rated battery? No. With the 25C rated battery I do not need to run any current or torque limiting but I do with the 90C battery. Does this mean that the Peak is a better battery? Maybe, but if I am not utilizing the extra amperage, why do I need to spend triple the money for said battery? If I do not use current limiting or torque limiting with either my MMP or RX8 with my Tekin Pro4 motor on the 90C Lipos, I will be lucky to finish a 10 minute main....and no warm up laps. With either controller running same Pro4 motor on the Gens Ace 25C batteries I have no problem finishing a 10min main (with warm up laps) and this is with no limiting. Yes the Gens Ace is rated for 500Mah more but keep in mind that I run those without any limiting.