Tekno ET48 Thread
#2641
Isn't the "c" rating more or less just a function of internal resistance?
#2644
I'm hoping the local BMX track will be open today and not have many bmx riders in the way. Need to practice flight control. (aka backflips)
#2645
"Amp rating" doubles in parallel, mAH doubles when you connect in parallel voltage remains the same
3s 50c 5000mAH in parallel w/ same pack 3s 100c 10000mAH
"Amp rating" remains the same in series, mAH remains the same, voltage doubles in series.
3s 50c 5000mAH in series w/ same pack 6s 50c 5000mAH
There is no true scale to rate "C's" it's, to each his own, by manufacturers.. so yes C rating is impacted by IR, but it is not solely based on it. C rating is the maximum safe discharge rate assigned by the manu or reseller.
Last edited by 8ight-e; 04-22-2014 at 08:11 PM.
#2646
I love this truggy more every time I drive it. Was able to run it on the bmx track. While it's a true race truck, it's also the best basher I've ever driven. When trying to drive the whole track in a circuit you really appreciate it's ability to stay on it's wheels when you have to hit some of those big jumps blind.
There was a really fun section that is supposed to be whoops/rollers for bmx, but was a nice step-up to table top, then a 6 pack of doubles followed by another step-up for the truggy.
There was a really fun section that is supposed to be whoops/rollers for bmx, but was a nice step-up to table top, then a 6 pack of doubles followed by another step-up for the truggy.
#2647
No. C rating doesn't change in either parallel or series. The amp discharge capability is doubled if you run 2 of the same pack in parallel, but that doesn't change the C rating.
#2648
Edit: I see what you are saying.. yes.. you are correct, its just how we are saying it.. 50c are the packs ratings *example. This doesn't technically change but with two packs it is doubling how many amps can be drawn. 50c x 5000 = 250a 50c x 10000 = 500a
EDIT2: I fixed how I worded that above.. :P
Last edited by 8ight-e; 04-22-2014 at 08:12 PM.
#2649
Tech Regular
iTrader: (7)
How is the stock setup on dusty bumpy big jump outdoors? I'm going for a full day of testing in the morning and looking to see what people have changed to possibly try for myself if I run into problems. Also shock length...120 and 135? I have it on the setup station now. Going -2 all around for camber and 1out for toe as a base. Starting at 10/10/5 diffs other than that all per manual. What about the steering stops, are people running those screws? Do all brands run higher diff oil than a buggy or is that tekno specific suggestion? Is that because of the bigger tires or what? Any setup sheets anywhere? I can only find one from anybody on petit
#2650
Tech Regular
"Amp rating" doubles in parallel, mAH doubles when you connect in parallel voltage remains the same
3s 50c 5000mAH in parallel w/ same pack 3s 100c 10000mAH
"Amp rating" remains the same in series, mAH remains the same, voltage doubles in series.
3s 50c 5000mAH in series w/ same pack 6s 50c 5000mAH
There is no true scale to rate "C's" it's, to each his own, by manufacturers.. so yes C rating is impacted by IR, but it is not solely based on it. C rating is the maximum safe discharge rate assigned by the manu or reseller.
3s 50c 5000mAH in parallel w/ same pack 3s 100c 10000mAH
"Amp rating" remains the same in series, mAH remains the same, voltage doubles in series.
3s 50c 5000mAH in series w/ same pack 6s 50c 5000mAH
There is no true scale to rate "C's" it's, to each his own, by manufacturers.. so yes C rating is impacted by IR, but it is not solely based on it. C rating is the maximum safe discharge rate assigned by the manu or reseller.
#2651
Tech Initiate
Usually the two packs are connected in series. That means that from two 2S 50C 5000mAh packs you get a 4S 50C 5000mAh batery unit.
Series connection means that:
the negative wire from the ESC is connected to the negative pole of the first pack,
the positive pole from the first pack is connected to negative pole of the second pack and
the positive pole of the second pack is connected to positive wire of your ESC.
Series connection means that:
the negative wire from the ESC is connected to the negative pole of the first pack,
the positive pole from the first pack is connected to negative pole of the second pack and
the positive pole of the second pack is connected to positive wire of your ESC.
#2652
Tech Regular
Usually the two packs are connected in series. That means that from two 2S 50C 5000mAh packs you get a 4S 50C 5000mAh batery unit.
Series connection means that:
the negative wire from the ESC is connected to the negative pole of the first pack,
the positive pole from the first pack is connected to negative pole of the second pack and
the positive pole of the second pack is connected to positive wire of your ESC.
Series connection means that:
the negative wire from the ESC is connected to the negative pole of the first pack,
the positive pole from the first pack is connected to negative pole of the second pack and
the positive pole of the second pack is connected to positive wire of your ESC.
#2653
Took my ET48 out for the first time yesterday to bash around the house for a bit. I was really surprised how fast it was with the T8 2250 and a 15t pinion. I'm running a totally box stock setup to get a baseline at the track next week but it's amazing how nimble such a big truck can be! I'm not sure how its going to be on the track but I think I might need to go up to yellow rear springs, the greens felt a little soft but things change a lot from the back yard to the track. In case anyone was curious I'm also running an RX8 2, Protek 130t (excellent servo at 7.4 volts, but I am worried about it after reading all the comments), Vant 7500 4S, super soft AKA Cityblocks and a 4PL radio. I bought the ET48 only because I have been racing the SCT410 for over a year and I have only changed out the axle stubs and carrier bearings (shock and diff oil of course), everything else is still tight. Teknos are absolute tanks!
#2655
Buildin my new kit and the caphead screw the holds the rear turnbuckle to the shock tower has no threads....ugh