SMC 9000mah e-revo packs
 

Well, I got my SMC 9k 28C e-revo lipos from stormer hobbies on saterday. What I have to compare them too is some poly-rc 6k 25c,enerland 6k 25c, true rc 8k 10c, max-amps 6k 20c, and a duremax 5k 25c. Well NONE of them other lipos have anything on the smc's! I am running the e-revo with 20/58 gearing with badlands and the mamba monster 2200 combo. The 9k was faster and had more punch than the others. Also with an outdoor temp of 85° the batteries at the end of the 45min run were only 91°F.

Well performance wise the smc cant be touched by the others, then the duremax,then the true rc, last but not least the enerland and poly rc and maxamps batts ran the worst (couldnt really tell that much of a diff between them)

So If you are loking for one heck of a bad a__ battery then look no further than the new smc's. They are awsome!!!! This is the best lipo battery I have ever seen/bought. I have finally got my moneys worth!!!!!!!(bought time) Hightly recommended

On a side note my cellpro 10s charger has a IR tester for the batts(I know its not really its IR but it give a # for referance to compare other batts too and moniter you pack to make suere they are in good condition)

The smc 9k 28c were at : 1 miliohm
duremax 5k 25c---------: 1.8
true rc 8k 10c----------: 3.8
enerland 6k 25c---------: 4.8
poly rc 6k 25c----------: 5.4
maxamps 6k 20c---------: 5.6

Good info...I am in the market for a couple of sets, so I may look into these

Try my 7800mah packs(conservatively rated capacity and discharge specs) - every bit as powerful as the SMC packs.
http://www.rc-monster.com/proddetail...00sp302s3p7800

Wow, I hadn't noticed those. They sound promising for large-scale conversions though! Can we get those in larger packs like 5s or 6s?

I didnt see those either. Nice looking packs you got there mike.

They are perfect ERevo packs. We can offer these in most any configuration needed. Our 5s 5200 mah packs wired in series would be pretty bitchin' in a 1/5 conversion.
http://www.rc-monster.com/proddetail...p255s2p5200mah

Yes, but a pair of 7800s would be more bitchin' :tongue: I primarily like the higher AH packs because you can charge them at a higher rate. Once the CC part of the charge is done (or just after 30-45 minutes) they've recovered enough charge that if you are really aching to bash again you can take them off the charge and run them for a while.

On a side note, how fast can we charge the 5200s and other RC-M lipos? Is it the same 1C rule as other lipos or can we push them to 2C? The notice that came with my replacement Maxamps lipos said they could be charged at 2C if it was a balance charge. Not like I believe a word they say, but if we needed to have a lipo in a jiffy would it be OK to crank up the amps?

We recommend 1c, but with a good balance charger the packs can take a 2c charge rate uif your in a hurry. Like any battery chemistry, the faster you charge and discharge the packs, the fewer cycles you will ultimately get, but the packs/cells can be charged faster than 1c for sure. I usually charge at about 1.5c.

OK, thanks for the advice. Good to know that, if you're really impatient, it isn't going to cause some kind of catastrophic failure.

This is the reason if everyone says get two, i get three, that way i'm covered if i need to hurry. Mike, is the 7800 2s pack same size as the maxamps 8000? I'm more into high volts for my MT and truggy, but i have a T4 setup as a Pro truck and use 8000mah packs. Will the 7800 fit where the 8000 fit?

:lol: I bring 4 lipos when I go bashing but only end up using 1-2 of them. I usually meet up with other people and they need batteries so I lend them mine.

The 2s 7800mah packs are 138L x 43W x 31 - smaller than the MA 8000 packs. More powerful as well. :)

and less expensive to boot!

will 31mm high battery fit in the e-revo?

Yes. It is snug, but they fit. :)

Thank you mike, i'll be looking to get some soon

Those 7800s sound like winners to me. Can we have them ordered in higher voltage?

Sure - LMK what you are looking for and I can make it happen no problem.

Sounds good, Thanks. I don't have the money for lipos right now, but I'd be in for a 5s or 6s pack in the future.

Mike do you have these in 3s that will fit the e-revo?

The 3s 5200mah packs will fit the ERevo. 3s 7800mah won't fit the compartment. :)

I realize this thread is old but I'm still curious howd the Stormer 9k SMC's work out EF?




GRRRRRR thats what I get for NOT reading the first post thourly......I re-read it, thanks fior the review of the SMCs got some of sport packs 2s 5k 25c's yesterday.

Just an FYI out racing a 30+ minute main the SMC 9000 packs are only good for about 22minutes MAX in a ERBE geared for 40. A 7800 pack would only be good for 19 minutes. This is HARD racing pushing truggy speeds or faster, obviously if you gear down or are a slow driver you can get a little more run time.

FYI 5000 packs last about 12minutes (hard racing)

Mine are working flawlessly. I couldnt ask for better

same here

Yea 9k's running for 22mins sounds about right I get 25mins out 2 3s 5k 20c zippys when tey are wired in parralel, so I'm not gonna complain about 22min runs, especially when you look at the power a 9k "28C" can put out.


BTW forgot to ask, you folks who have gotten smc packs whe nyou got them and charged them for the 1st time did you pay attention to your charger, cause I just got 2 smc hard case sportmax packs, 2s 4800 or 5k "28c" and when I went to charge them one of them was reading 5.9v on my hyperion but charged to something like 8.4v with 4918ma and balanced fine, the other pack was something like 6.8v but hit the hyperions 120min safety timer and got something like 4173ma, did I just get some odd packs or have you guys had similar issues?

The 4 SMC packs I have (2x hardcase 2s 4500 28C and 2x hardcase 2s 6000 28C) were all at the same voltage when I got them a few weeks ago. I think it was 3.8 or 3.9v per cell. I use, balance and charge them as 4s packs, and when I put them on balance charge before using them there wasn't even any balancing between the 2 2s packs, strange that yours were so much different in voltage.

Interesting. I see folks claiming 30mins under race condition with them. 2X 2S 9000mah is good for 133 A/hr, versus 2 X 3S 5000K in parallel is only 111 A/hr. In the post above Nocontrol says 25mins with his 2X 3S setup, so no reason a 2X 2S 9000mah setup shouldn't run right at 30mins if geared for the same speed.

Stum what pinion/spur are you runinng and what tires. Although 22 mins of hard dirving sounds about right

Guess their still is no setup that has been able to make under "race conditions" 30mins and still be light weight enough (under 800 grams).

I'm w/ a 18/58 right now.. but I think when I did that race I may have been 18/54 w/ my losi xxt tires (bout same size as proline crimefighter LPR's).

Sorry double hit.. smack me!

I know this thread is old but hoping to get a response back before I order the same 9000mah 28c SMC packs. What LVC did you set it at for 22 minutes and are you still happy with these packs are you seeing any swelling or just plain failure? I would like answers from actual owners of these batts not forum generated answers, thank-you!

I believe I have my Mamba Monster LVC set to 3.2 or 3.3 and get over 20 minutes of of bashing time.I`ve had mine SMC 9000 for a Little under a year and they have swelled,it`s more difficult to put into battery compartment but still fit.

They will swell if pushed really hard after a few times going to LVC.. if you are geared reasonable they should hold up for a while expecially if you don't always take them down to LVC. I wouldn't rate SMC's as a 'top' pack, but they are decent. 3.0 LVC was used, so you could maybe pick a high cutoff for added protection.

One concern I have is my charger (duratrax ICE with a Equinox balancer).It takes usually 3 hours to charge one SMC 9000 28C battery.

I'm not sure that I would recommend these packs anymore. I bought 8 of them at their original release, 4 for me, and 2 for 2 friends. While at first they were very powerful, their longevity left something to be desired. Though we all pushed them very hard, at roughly 50 cycles they are down to taking only 5500 mah. They also tend to come out of balance. However, SMC did give me a discount on a pair of new packs, that I am waiting on, as they say the newest cells are better. I have 3 mos to try to push them to their limit, so I will report back once I know something.
But I did just get a new pair of the SPC 8000's. They seem to be doing very good. I really need to get the SMC's for a good head to head comparison.