Tekno RC SCT410.3 Thread
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#4156
Tech Regular
iTrader: (36)
I only have a summer on a pair I bought, but the punch is great and seems to stay consistent though the cycle. Run time maybe a little less, enough for an 8 min main for sure. I'd pick them over the 7200 for what I do. Only bad side of them is when they are dead they are dead. No limping them back to the driver stand, you gotta go get it.
#4157
Tech Master
I only have a summer on a pair I bought, but the punch is great and seems to stay consistent though the cycle. Run time maybe a little less, enough for an 8 min main for sure. I'd pick them over the 7200 for what I do. Only bad side of them is when they are dead they are dead. No limping them back to the driver stand, you gotta go get it.
#4158
http://spcracingbatteries.com/ ??? The site doesn't load, do you order from somewhere else?
Looks like you're getting a good set anyways... I have three I run and that keeps me going for as long as I need.. one goes in the charger when I'm done with the first and I have that third if the first isn't fully charged by the time I'm done...
#4159
Tech Fanatic
iTrader: (2)
If running on small-medium to large 1/8 scale tracks with 10 min mains, I personally wouldn't run anything under 7000mah. I've lost a couple of 6000mah where one cell dropped a little faster than the other, went under 3.3 volts and started to swell. I now run my cutoff at 7v total or 3.5v per cell depending on which way the esc settings are programmed.
#4160
If running on small-medium to large 1/8 scale tracks with 10 min mains, I personally wouldn't run anything under 7000mah. I've lost a couple of 6000mah where one cell dropped a little faster than the other, went under 3.3 volts and started to swell. I now run my cutoff at 7v total or 3.5v per cell depending on which way the esc settings are programmed.
hmm, heres the track I will generally be running at...
10-09-16 at ddhrc
#4162
Tech Fanatic
iTrader: (2)
The turnigy graphene is supposed to be better than the ultimates, but I've never run them. My 2 yr old ultimates are still going strong so I haven't had a need to purchase any.
#4163
The SPC racing 7200 packs are awesome. Bought two of them and they perform great. Also have 4 of their 5200's which also perform well. No reduction of performance at all after many discharge/charge cycles.
#4164
highest spc i see is 6000, and its out of stock anyway.
i need to order something from smc anyway to get a replacement 4s. just not sure between 2s 7200 60c or 2s 6000 100c, or just another 4s for my eb and a non-smc 2s.
i think they generally run 6-7min mains at my track, but i don't want to be screwed if they do a 10, and im not sure what the other local tracks run yet. the 6000mah 100c seemed good, but not if it won't last...
i need to order something from smc anyway to get a replacement 4s. just not sure between 2s 7200 60c or 2s 6000 100c, or just another 4s for my eb and a non-smc 2s.
i think they generally run 6-7min mains at my track, but i don't want to be screwed if they do a 10, and im not sure what the other local tracks run yet. the 6000mah 100c seemed good, but not if it won't last...
#4165
Tech Fanatic
iTrader: (2)
highest spc i see is 6000, and its out of stock anyway.
i need to order something from smc anyway to get a replacement 4s. just not sure between 2s 7200 60c or 2s 6000 100c, or just another 4s for my eb and a non-smc 2s.
i think they generally run 6-7min mains at my track, but i don't want to be screwed if they do a 10, and im not sure what the other local tracks run yet. the 6000mah 100c seemed good, but not if it won't last...
i need to order something from smc anyway to get a replacement 4s. just not sure between 2s 7200 60c or 2s 6000 100c, or just another 4s for my eb and a non-smc 2s.
i think they generally run 6-7min mains at my track, but i don't want to be screwed if they do a 10, and im not sure what the other local tracks run yet. the 6000mah 100c seemed good, but not if it won't last...
#4166
Tech Regular
I run smc 6500 60c in 8 min mains. Any longer than that you will need the 7200
#4167
Tech Addict
iTrader: (1)
Most manufacturers don't like to make a pack above 7200, due to increased IR loads. The larger the cells, the more resistance. But this is negligible in my opinion and would always recommend getting a pack that has enough Mah to get the job done with reserve.
You may not see as high of burst ratings with the larger packs, but your not going to experience drop off over the race period, which equals consistency and we all know what that can do for a racer advantage.
Past poor solder joints or bad gearing, over discharge is the number one killer of any pack.
I will recommend checking out RC Juice for packs upto 8000mah. Jeremy McGuigan runs them and several other people I know do to without any issue what so ever. That guy is super fast at getting your orders out to and you won't find better customer service.
Another person I buy packs from 6500 or less is Mark from M&K Racing.
They are branded RCKING, but in reality they are SMC with a different sticker for outsource sales. I test a 2S pack from him that seen IR as low as .9 on one cell with the other at a 1.0 once broken in.
As stated by many by now, true C ratings are generally much lower than what they advertise and is mostly just BS.
70C has tested the same as my other 100C packs from different makes.
And that Graphine stuff is BS to. True nano tech graphine is so expensive it would cost roughly $1500 to make a pack with true sheet graphine. So don't buy into it. Look into it yourself if you don't believe what I'm telling you.
You may not see as high of burst ratings with the larger packs, but your not going to experience drop off over the race period, which equals consistency and we all know what that can do for a racer advantage.
Past poor solder joints or bad gearing, over discharge is the number one killer of any pack.
I will recommend checking out RC Juice for packs upto 8000mah. Jeremy McGuigan runs them and several other people I know do to without any issue what so ever. That guy is super fast at getting your orders out to and you won't find better customer service.
Another person I buy packs from 6500 or less is Mark from M&K Racing.
They are branded RCKING, but in reality they are SMC with a different sticker for outsource sales. I test a 2S pack from him that seen IR as low as .9 on one cell with the other at a 1.0 once broken in.
As stated by many by now, true C ratings are generally much lower than what they advertise and is mostly just BS.
70C has tested the same as my other 100C packs from different makes.
And that Graphine stuff is BS to. True nano tech graphine is so expensive it would cost roughly $1500 to make a pack with true sheet graphine. So don't buy into it. Look into it yourself if you don't believe what I'm telling you.
#4168
Guess I'll get the 7200, 60c.... Wasn't sure if 60c would be enough, but rather not dump during a race with the 6000 100c, hah...
#4169
Thanks Josh, I'll look into those for my next packs. I need to order from SMC this round to get my replacement sent out tho. But for future batts I'll check those out!
#4170
Tech Addict
iTrader: (1)
Another thing worth mentioning,
I used to run bullet type packs, but I had a few melt the inner terminal from probably getting dirty and me not paying enough attention to clean them out.
That being said, all I run now are Traxxas connectors since they are the next best thing and haven't seen any problems like that since.
SMC claims the bullets are the lowest resistance due to the most surface contact you can get past direct soldering, but you have to keep them clean and bur free. I have seen some use a spark arrester to keep them from burring on initial contact.