Help for Lipo Recommendations
07-24-2009, 11:11 AM
#1
Help for Lipo Recommendations
I need recommendations for Lipo Packs.
To fit on 1/8 truggy on 2050kv motor. I suppose 8000mAh packs will be able to last 20min at least. I know Maxamps have them but what other brands can be considered?
My battery tray can accomodate length - 140mm, Width - 47mm, Height - 31mm or if need be, batts will additional height will be secured with Velcro straps.
To fit on 1/8 truggy on 2050kv motor. I suppose 8000mAh packs will be able to last 20min at least. I know Maxamps have them but what other brands can be considered?
My battery tray can accomodate length - 140mm, Width - 47mm, Height - 31mm or if need be, batts will additional height will be secured with Velcro straps.
07-24-2009, 11:30 AM
#4
Maxamps is just so expensive... $200+ for a battery? 
07-24-2009, 12:34 PM
#5
Don't start with expecting 8000mAH - maybe you can do it with 5000mAh and 6S1P. More choices with that size. Meaning - buy a lower-cost Rhino or Zippy 5000 20C 6S1P perhaps, run it and determine your runtime. If you need more - look for another pack.
07-24-2009, 12:43 PM
#6
Tech Fanatic
iTrader: (1)
Does he really need to go to a 6s1p!?!?! My buddy is using a 4s & 5S in his Jammin' and with the 5S that thing is crazy. He got a call from Nasa, and they are going to come to the track this weekend and certify it so its a qualified land missile!
Jay
Jay
07-24-2009, 01:06 PM
#7
For a 2050kv, probably not necessary for 6S1P. Maybe for longer-runtime. But he's talking 8000mAh and if you had a 4S1P 8000mAh - you could go the route of 6S1P 5000mAh to get similar runtime with lower pinion size. That's 32Ah vs. 30Ah total "capacity".
07-24-2009, 06:02 PM
#9
My apologies. I did not mention that I run my Battery setup in Series. That's why I listed my preferred options of 7.4v, 2s. I'm currently running on 2 x 2s 5000mAh lipos in series which can give me abt 15min of runtime. Tht's why I need something that's higher than 5000mAh but still 2s.
07-24-2009, 10:49 PM
#12
My set-up: 2 x 2s 5000mAh in series, 2050kv motor, 43/10 front/rear gear ratio, 62t Spur, 16T pinion.
So, based on the expended mAh, I should need at least 6500mAh packs to last 20mins.
Glassdoctor:
Wht setup do u have on yrs?
07-25-2009, 07:23 AM
#13
I saw those too but am not sure if 6000mAh will last 20mins. I consumed abt 2300mAh in the 7min Heats during the last race.
My set-up: 2 x 2s 5000mAh in series, 2050kv motor, 43/10 front/rear gear ratio, 62t Spur, 16T pinion.
So, based on the expended mAh, I should need at least 6500mAh packs to last 20mins.
Glassdoctor:
Wht setup do u have on yrs?
My set-up: 2 x 2s 5000mAh in series, 2050kv motor, 43/10 front/rear gear ratio, 62t Spur, 16T pinion.
So, based on the expended mAh, I should need at least 6500mAh packs to last 20mins.
Glassdoctor:
Wht setup do u have on yrs?
07-25-2009, 07:20 PM
#14
I know you're only trying to change one parameter - battery capacity. Is that strictly all you can change?
Once you get past 15-minutes, you have to really look to lower the KV in the motor and go with more cells. 5S1P in a 1600KV motor will give you 20+ minutes. Heck - use 3 x 2S1P packs wrapped up into a series 6S1P and use a 1200-1300KV motor, perhaps. That's what some guys are doing for longer Truggy races. They seem to do this after first going for higher KV motors.
Once you get past 15-minutes, you have to really look to lower the KV in the motor and go with more cells. 5S1P in a 1600KV motor will give you 20+ minutes. Heck - use 3 x 2S1P packs wrapped up into a series 6S1P and use a 1200-1300KV motor, perhaps. That's what some guys are doing for longer Truggy races. They seem to do this after first going for higher KV motors.
07-25-2009, 09:11 PM
#15
I know you're only trying to change one parameter - battery capacity. Is that strictly all you can change?
Once you get past 15-minutes, you have to really look to lower the KV in the motor and go with more cells. 5S1P in a 1600KV motor will give you 20+ minutes. Heck - use 3 x 2S1P packs wrapped up into a series 6S1P and use a 1200-1300KV motor, perhaps. That's what some guys are doing for longer Truggy races. They seem to do this after first going for higher KV motors.
Once you get past 15-minutes, you have to really look to lower the KV in the motor and go with more cells. 5S1P in a 1600KV motor will give you 20+ minutes. Heck - use 3 x 2S1P packs wrapped up into a series 6S1P and use a 1200-1300KV motor, perhaps. That's what some guys are doing for longer Truggy races. They seem to do this after first going for higher KV motors.