02-02-2009, 08:22 AM | #1 |
Pebble Pounder Join Date: May 2008 Location: grand rapids
Posts: 145
| 11.1v help
How do I know if my esc can handle a 11.1v pack vs. a 7.4?? I am looking into a tekin fx-r. I have an lrp a1 I think in it now with no lipo shut off.
|
Sponsored Links | |
02-02-2009, 08:29 AM | #2 |
I wanna be Dave Join Date: Sep 2005 Location: Houston, TX
Posts: 16,952
| http://www.teamtekin.com/manuals/FXManual.pdf Look in the Specifications section. |
02-02-2009, 08:33 AM | #3 |
I wanna be Dave Join Date: Oct 2006 Location: Centered
Posts: 2,082
|
The Tekin FX-R will accomodate a 3S (11.1v) Lipo if you are running a single 35 turn motor or higher. Anything lower than 35T, or dual servos like a dig set up or rear steer, then you'll need to run a BEC as well.
|
02-02-2009, 08:45 AM | #4 |
Quarry Creeper Join Date: Mar 2008 Location: Raleigh, NC
Posts: 441
|
Your current ESC, the LRP AI can't handle a 3s lipo. You could run a 2s 7.4v lipo, but I don't know if it has a lipo cutoff built-in. I highly recommend the Tekin FX-R |
02-02-2009, 09:13 AM | #5 |
Pebble Pounder Join Date: May 2008 Location: grand rapids
Posts: 145
|
Not trying to sound totally stupid but is it as simple as 2 cell is 7.4 and 3 cell is 11.1? If so, I apologize for my stupidity. lol
|
02-02-2009, 09:25 AM | #6 | |
Rock Crawler Join Date: Dec 2007 Location: USA
Posts: 627
| Quote:
correct..if your esc can handle a 7.2v nimh or nicad then it can handle a 7.4v but no more then that..and be careful and make sure that either the esc or the battery has an lvc (low voltage cutoff) | |
02-02-2009, 09:42 AM | #7 |
Pebble Pounder Join Date: May 2008 Location: grand rapids
Posts: 145
|
It doesnt have lv cutoff but I am using an external one from common sense. I have yet to run one all the way down to cut off for fear of it not working but it is supposed to work.
|
02-02-2009, 09:44 AM | #8 |
Quarry Creeper Join Date: Mar 2008 Location: Raleigh, NC
Posts: 441
| |
02-02-2009, 09:54 AM | #9 | |
Newbie Join Date: Apr 2008 Location: Norcal / SF East Bay
Posts: 45
| Quote:
in the general sense, you have it right as each lipo "cell" is rated at 3.7v. (thus: 1S - 3.7v, 2S - 7.4v, 3S - 11.1V, etc). however there is a "but".... you can also wire cells in a parallel formation for longer run times. for example, you might find a 2S2P battery... which means 4 cells have been combined to get you 7.4 volts. i just think of it this way: Parallel - add up the cell MaH. Serial - add up the cell V here's a site that may explain better than i can at 9am... http://www.glypo.com/guides/lipo/ | |
02-02-2009, 11:54 AM | #10 |
Pebble Pounder Join Date: May 2008 Location: grand rapids
Posts: 145
|
Thank you guys. I really appreciate all the info. J |
Thread Tools | |
Display Modes | |
| |