RC-Monster Forums - View Single Post - video: 10sA123 Buggy with eagletree inserts

othello · 09.17.2007, 05:42 AM

Thanks for the positive feedback.

@_paralyzed_ and jnev
This was the first time i drove in this area. As i live in the city, it's not so easy to find some space to bash especialy on a beautiful sunday afternoon. This was my second battery pack. I also shot some video on a big open concrete space with my first battery pack but forgot to hook up the mic ;-( That's why i choose this part of the video.

Usually i drive in an other spot during the week. On weekends this area is filled with familys enjoying their bbqs. So no way to drive there.

@Finnster
The highest Amp draw was 60A. I had 7 peaks above 50A. The rest stayed below 45A. Motor temperature was no issue at all. That is the beauty of a high volt system when setup right. Outside temperature was around 20 C (68 F). As i have the non finned Neu i use two small fans above the motor, so that temperatures remain safe during summer time. The highest recorded motor temperature with 30 C (90 F) ambient temperature was 50 C (122 F). Without fans temperature reached once 70 C (158 F). That is when i decided to use some fans. With 10s A123 the motor spins up to 45000rpm and thus can heat up.

@Aqwut
That's right. With 30v, 40A already translates to 1200W. And you won't need much more in a buggy. The batteries are only warm to the touch (same for the ESC) after a 13 to 18 minute run, as my average Amp draw is around 10A. In this run for instance the average Amp draw was 9.78A or an average of 290 Watts.

	(#7)
othello HV basher Offline Posts: 392 Join Date: Jun 2007 Location: Austria (Europe)	09.17.2007, 05:42 AM Thanks for the positive feedback. @_paralyzed_ and jnev This was the first time i drove in this area. As i live in the city, it's not so easy to find some space to bash especialy on a beautiful sunday afternoon. This was my second battery pack. I also shot some video on a big open concrete space with my first battery pack but forgot to hook up the mic ;-( That's why i choose this part of the video. Usually i drive in an other spot during the week. On weekends this area is filled with familys enjoying their bbqs. So no way to drive there. @Finnster The highest Amp draw was 60A. I had 7 peaks above 50A. The rest stayed below 45A. Motor temperature was no issue at all. That is the beauty of a high volt system when setup right. Outside temperature was around 20 C (68 F). As i have the non finned Neu i use two small fans above the motor, so that temperatures remain safe during summer time. The highest recorded motor temperature with 30 C (90 F) ambient temperature was 50 C (122 F). Without fans temperature reached once 70 C (158 F). That is when i decided to use some fans. With 10s A123 the motor spins up to 45000rpm and thus can heat up. @Aqwut That's right. With 30v, 40A already translates to 1200W. And you won't need much more in a buggy. The batteries are only warm to the touch (same for the ESC) after a 13 to 18 minute run, as my average Amp draw is around 10A. In this run for instance the average Amp draw was 9.78A or an average of 290 Watts.