"Hard Case" 7.4v 4000mAh 25C Lipo Under $60
07-22-2008, 09:31 PM
#106
The 3200's and 4000's seem to be very different batteries though. The voltage drop over time with the 3200's is much flatter than the 4000's. The 4000's initially have a higher voltage and at the 70 second mark (1/3 into the discharge cycle) they cross over and after that they have a lower voltage. Its quite amazing.
cheers.
07-22-2008, 09:37 PM
#107
Tech Initiate
Actually for that voltage drop test I discharged them both at 60A, which is pretty close to 20C for the 3200's and either 15C if you rate them at 4000 or 17C if you think of them as 3500's.
The main reason I discharged them both at the same rate was to see which would have more power in my car, as the load my car generates would not vary with the C rating of the battery. That is when I noticed the different discharge curves.
The main reason I discharged them both at the same rate was to see which would have more power in my car, as the load my car generates would not vary with the C rating of the battery. That is when I noticed the different discharge curves.
07-22-2008, 10:07 PM
#109
Actually for that voltage drop test I discharged them both at 60A, which is pretty close to 20C for the 3200's and either 15C if you rate them at 4000 or 17C if you think of them as 3500's.
The main reason I discharged them both at the same rate was to see which would have more power in my car, as the load my car generates would not vary with the C rating of the battery. That is when I noticed the different discharge curves.
The main reason I discharged them both at the same rate was to see which would have more power in my car, as the load my car generates would not vary with the C rating of the battery. That is when I noticed the different discharge curves.
07-24-2008, 11:36 AM
#110
Tech Fanatic
iTrader: (6)
ruben there are many tracks that are running by roar rules that are allowing even soft lipos For this year only due to the unexpected decision by roar to legalize lipos for competition. also could you email me the requirements to submit a lipo to roar for approval to [email protected] . I would sure appreciate it
All information for product approvals and submissions can be found on the ROAR website at http://www.roarracing.com/approvals.php
07-24-2008, 03:06 PM
#111
That's cool if local tracks want to allow this, it's your track, your responsibility and your liability. My previous track was on County Fairgrounds property and they took their liability issues serious. ROAR was my ONLY liability insurance and I couldn't afford even the remote risk of something happening and me personally having to assume the liability and that was a risk I couldn't afford. So I'm doing the next best thing I can by helping these guys with the use of my personal equipment.
All information for product approvals and submissions can be found on the ROAR website at http://www.roarracing.com/approvals.php
All information for product approvals and submissions can be found on the ROAR website at http://www.roarracing.com/approvals.php
I am glad that there is at least one other person that understands our position.
07-31-2008, 11:46 PM
#113
So do I get it right. If I wanna get Yeah Racing's Lipos, I should get the 3200s instead of the 4000s?
08-01-2008, 08:19 AM
#116
So the new 4000 will be 3600 but 25C or 20C? This is not so clear.And the price?
08-01-2008, 12:02 PM
#117
08-01-2008, 12:37 PM
#118
Well the 4000 25C wasn't neither 4000mA not 25C.Not even 20C.Now if Yeah Racing relabes the same packs as 3600mA and 20C with a higher price than 3200mA i don't see why someone will buy these packs.
