SMC 40C+ C-Max 7.4V Hardcase Lipos
12-16-2008, 06:52 AM
#16
I got my runs done with the 28C so I had a good baseline. 9.1 hot lap with alot of 9.2's and 9.3's. This was on the 2nd run of the pack.
Then I put the 40C pack in to make its first run. 9.0 hotlap with a ton of 9.1's and a few 9.2's. Finished with a 9.1. It was a noticable difference, sort of like going up 2 teeth if you were undergeared. Rip from corner to corner was noticably better as well as top speed (which to me doesnt make much sense cause voltage its pretty close)
-Donny Lia
Then I put the 40C pack in to make its first run. 9.0 hotlap with a ton of 9.1's and a few 9.2's. Finished with a 9.1. It was a noticable difference, sort of like going up 2 teeth if you were undergeared. Rip from corner to corner was noticably better as well as top speed (which to me doesnt make much sense cause voltage its pretty close)
-Donny Lia
12-16-2008, 07:05 AM
#17
12-16-2008, 09:53 AM
#19
As testing C rate requires expensive equipment the Lipo manufacturers and resellers know this so they can claim any C rate as they know it's very hard to test. So some rely on this to claim higher C rates which keeps the cost down so they make higher profit margins and it makes there pack more marketable.
SMC was the first to release a true 28C pack and the reason why we called it 28C is because that is what it truly is. Our supplier which we feel makes the best performing Lipos with true C rate has told us that true 35C packs are fairly hard to do and the technology wasn't possible until recently. I also asked him how some can claim 5200 with 35C in the ROAR case size which limits the cell size and he told me it was impossible to make a pack with true 35C with 5200 in that case size. This lead me to buy one of these 5200/35C packs so I could test it.
SMC was the first to release a true 28C pack and the reason why we called it 28C is because that is what it truly is. Our supplier which we feel makes the best performing Lipos with true C rate has told us that true 35C packs are fairly hard to do and the technology wasn't possible until recently. I also asked him how some can claim 5200 with 35C in the ROAR case size which limits the cell size and he told me it was impossible to make a pack with true 35C with 5200 in that case size. This lead me to buy one of these 5200/35C packs so I could test it.
Having received the samples just last week, you have chosen to advertise them for sale seemingly quickly. (No pics, case size TBA, etc, etc.)
What tests do these have to pass in order to be up to "SMC's standards"? Is it strictly output related (like the intellect cell) or have you implemented some type of testing to guarantee X number of cycles/safety out of these? I know the lipo sack adds safety to the process, but does that mean we are less concerned about what goes on inside there? Basically, is there any 'crash testing' being done?
With the case size needing to be enlarged, I can't help but think that we're already headed down the road of increased sensitivity in terms of usage practices, at the risk of reduced reliability.
I know your production was on hold with the Intellect cell while they took care of the safety issues plaguing that product. What has this supplier said/done differently to gain your trust, and assure you that you won't be bringing to market another 'disposable cell'?
I'm anxious to see how fast these are, but the jump started release, citing only output specs, has me feeling a bit embarrassed as a consumer. From your "False Lipo advertising" thread on 11/19, you stated that 35C cells were possible only just recently, and now (12/16) you have a 40C pack. Lipo tech sure must be changing rapidly. Will 45C cells be available on 1/15/09, 50C on 2/15/09, etc? I'm really interested to see the difference on the track, since we don't race GFXes.
12-16-2008, 10:05 AM
#20
At least the Reedy 35C will have some competition - CE numbers for this pack look pretty close.
12-16-2008, 10:19 AM
#22
CarbonJoe: Yes Lipo technology evolves as there is new material breakthroughs. Recently there wa one with a chemical that has enabled higher C rate. This material was available 6 months or so ago but at that time it wasn't stable. Just recently has it become stable and this is why we can release new packs with higher C rates.
Since you read my post on False Lipo Advertising you must of noticed I claimed we weren't going to release 35C packs. Now you know why as I knew we could do 40C+. The reason why we didn't release the 40C+ packs earlier is that there is another imporvement that is possible that would boost the average voltage of the packs some more. Our supplier told us to give him some more time to test this and see if it will be reliable/stable. Since SMC is all about releasing the best possible products we decided to wait until our supplier finished his testing. The new improvement failed the stability/reliability tests so we will have to wait on this until they figure it out. This is why we are going with the 40C+ as we know this is reliable and stable.
In the past 6 months we could of released 30C , 33C and 35C but we wanted to wait for a bigger improvement. Now 40C+ is an improvement over our 28C packs so were releasing it.
Hope this answers you questions.
Since you read my post on False Lipo Advertising you must of noticed I claimed we weren't going to release 35C packs. Now you know why as I knew we could do 40C+. The reason why we didn't release the 40C+ packs earlier is that there is another imporvement that is possible that would boost the average voltage of the packs some more. Our supplier told us to give him some more time to test this and see if it will be reliable/stable. Since SMC is all about releasing the best possible products we decided to wait until our supplier finished his testing. The new improvement failed the stability/reliability tests so we will have to wait on this until they figure it out. This is why we are going with the 40C+ as we know this is reliable and stable.
In the past 6 months we could of released 30C , 33C and 35C but we wanted to wait for a bigger improvement. Now 40C+ is an improvement over our 28C packs so were releasing it.
Hope this answers you questions.
12-16-2008, 10:23 AM
#23
12-16-2008, 10:31 AM
#25
Don`t need to test , I have a Ae Team Driver tell me whats the best ...
12-16-2008, 10:33 AM
#26
CarbonJoe: Yes Lipo technology evolves as there is new material breakthroughs. Recently there wa one with a chemical that has enabled higher C rate. This material was available 6 months or so ago but at that time it wasn't stable. Just recently has it become stable and this is why we can release new packs with higher C rates.
Since you read my post on False Lipo Advertising you must of noticed I claimed we weren't going to release 35C packs. Now you know why as I knew we could do 40C+. The reason why we didn't release the 40C+ packs earlier is that there is another imporvement that is possible that would boost the average voltage of the packs some more. Our supplier told us to give him some more time to test this and see if it will be reliable/stable. Since SMC is all about releasing the best possible products we decided to wait until our supplier finished his testing. The new improvement failed the stability/reliability tests so we will have to wait on this until they figure it out. This is why we are going with the 40C+ as we know this is reliable and stable.
In the past 6 months we could of released 30C , 33C and 35C but we wanted to wait for a bigger improvement. Now 40C+ is an improvement over our 28C packs so were releasing it.
Hope this answers you questions.
Since you read my post on False Lipo Advertising you must of noticed I claimed we weren't going to release 35C packs. Now you know why as I knew we could do 40C+. The reason why we didn't release the 40C+ packs earlier is that there is another imporvement that is possible that would boost the average voltage of the packs some more. Our supplier told us to give him some more time to test this and see if it will be reliable/stable. Since SMC is all about releasing the best possible products we decided to wait until our supplier finished his testing. The new improvement failed the stability/reliability tests so we will have to wait on this until they figure it out. This is why we are going with the 40C+ as we know this is reliable and stable.
In the past 6 months we could of released 30C , 33C and 35C but we wanted to wait for a bigger improvement. Now 40C+ is an improvement over our 28C packs so were releasing it.
Hope this answers you questions.
Are you testing the packs your self now or getting the #'s from your supplier?
12-16-2008, 10:38 AM
#27
Wow you are pretty funny. You claim things you can't back up.
On the subject of AE Team drivers I would like to know one of them is or was using our packs instead of the AE packs ? That is in oval where power actually counts.
Anyway keep coming on these threads with your comments that you can't back up as it's pretty entertaining.
12-16-2008, 10:40 AM
#28
At the moment we get graphs from our supplier as we don't have the high amp capabilites needed to do C rate testing. We are purchasing equipment that will allow us to do our own tests. We will be able to go as high as 250 amps on a 2 cell pack. So we will be ready for 50C if it happens.
12-16-2008, 11:05 AM
#29
Tech Fanatic
The haters crack me up 
Same old.
Same old.
12-16-2008, 11:33 AM
#30
At the moment we get graphs from our supplier as we don't have the high amp capabilites needed to do C rate testing. We are purchasing equipment that will allow us to do our own tests. We will be able to go as high as 250 amps on a 2 cell pack. So we will be ready for 50C if it happens.
50c? WOW...
