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Old 01-12-2014 | 06:49 AM
  #2836  
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Originally Posted by WIGMAN
Aggressive would be charging at 4-6c which for a 5000 mah pack would be 20-30 amps, Danny does alot of testing with all his packs before he decides to put the SMC name on them, he doesn't just buy packs and slap stickers on like some companies do. Danny's testing shows his packs can handle a 6c charge, of course that will drastically reduce the cycle life of the pack. Danny recomends charging no lower than 2c.
Sorry I missed this, you are saying if you have 7200 packs you should charge at a MINIMUM of 14.4A? I'd didn't think 1s could ever do harm!?
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Old 01-12-2014 | 06:57 AM
  #2837  
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I think Danny said no less than 1c, 2c is the best balance of speed and quality of charge and 3c is about as high as you should go. 3c ceiling not for safety but for the quality of the charge.
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Old 01-13-2014 | 03:51 AM
  #2838  
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Originally Posted by Danny/SMC
You can charge them at 6C or even higher as they have low IR. That being said if you want a fully charged pack typically 2 to 3C is best.


^^^^^^Post #7 of his thread by the man himself^^^^^^^^^

This is the response when asked about charge rates for a shorty 4600 70c.
He posted this same info numerous times throughout the thread when asked about charge rates for all the packs he sells up until the time he was not allowed to post here anymore.
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Old 01-13-2014 | 07:35 AM
  #2839  
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Hello. Just ordered one last night. "Factory Spec 7.4V Shorty 4300mAh 50C Inboard "
Can someone please confirm the "C" charge rating that can be used? This is my first time to use higher than 1c, so a bit nervous and wants to 2x check. Sorry if this has asked. Thanks
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Old 01-13-2014 | 07:37 AM
  #2840  
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Originally Posted by xxx123
Hello. Just ordered one last night. "Factory Spec 7.4V Shorty 4300mAh 50C Inboard "
Can someone please confirm the "C" charge rating that can be used? This is my first time to use higher than 1c, so a bit nervous and wants to 2x check. Sorry if this has asked. Thanks
2C, or 8.6A is fine.
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Old 01-13-2014 | 05:07 PM
  #2841  
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+1 Been charging at that/or higher rate for years.
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Old 01-13-2014 | 05:38 PM
  #2842  
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Originally Posted by WIGMAN
Aggressive would be charging at 4-6c which for a 5000 mah pack would be 20-30 amps, Danny does alot of testing with all his packs before he decides to put the SMC name on them, he doesn't just buy packs and slap stickers on like some companies do. Danny's testing shows his packs can handle a 6c charge, of course that will drastically reduce the cycle life of the pack. Danny recomends charging no lower than 2c.
So, can you explain how it hurts a pack if you charge less than 1C? Everything i've ever read about lipos & batteries in general says that slower is always better.
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Old 01-13-2014 | 07:11 PM
  #2843  
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I don't doubt that you guys are charging packs as 10+ amps but I've never seen a pro charge at more than 1c and we have guys at the track from Kyosho at least a couple of times a week and AE every so often and not 1 of them ever charges at more than 1c. I look. Is it possible there's a new normal and nobody has caught on yet? Sounds like I need to move up to a Power Lab 6. Still my 7 amps, that you guys are mocking, is the most anybody that I know and race with charges at. I just ordered 5 6500 SMC packs. I think that my chargers can charge @ 10amps. I'll try it out when the new packs arrive. It'll definitely save some time.
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Old 01-13-2014 | 10:19 PM
  #2844  
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anyone run the 4s 5000mah 50c? i was wondering the run time people are getting with these i know some factory come into play just tring to get an idea? thanks
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Old 01-14-2014 | 04:21 AM
  #2845  
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Originally Posted by QDRHRSE
I don't doubt that you guys are charging packs as 10+ amps but I've never seen a pro charge at more than 1c and we have guys at the track from Kyosho at least a couple of times a week and AE every so often and not 1 of them ever charges at more than 1c. I look. Is it possible there's a new normal and nobody has caught on yet? Sounds like I need to move up to a Power Lab 6. Still my 7 amps, that you guys are mocking, is the most anybody that I know and race with charges at. I just ordered 5 6500 SMC packs. I think that my chargers can charge @ 10amps. I'll try it out when the new packs arrive. It'll definitely save some time.
There are plenty of people charging at 2 and 3 C, most are stock racers, pros don't need to charge higher cuz if they want more they can boost or drop a wind. In blinky classes voltage is everything, charging at a higher amp will increase performance. Myself I run a couple blinky classes, my charger only does 6 amps, I am getting a new/used charger capable of 15 amp, I plan to start charging all my packs at 2c. Nobody was mocking your 7 amps, you just stated that you thought 7 amps was being aggresive and we disagreed. Now in the NIMH days 7 amps would have been aggressive. Lipo days that word takes on a whole different meaning. I do know some oval racers that charge at 3-5C, those oval guys are nuts, but in oval voltage is king, every little bit helps when you are searching for how to make your car a hundreth of a second faster per lap, if you can find a tenth of a second in oval everyone thinks your cheating. Do I personally think charging at 1c will hurt a pack, probably not, If Danny says 2-3c is best for his packs I am going to believe him, he has been in the battery game longer than most of us have been racing. Danny does his research and backs it up with his own controlled environment testing, he doesn't just buy packs and resell them, he knows his stuff.
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Old 01-14-2014 | 05:14 AM
  #2846  
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I charge my SMC batteries at 20 or 30amps. Works just fine.

7200 2s and 6500 4s
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Old 01-14-2014 | 05:21 AM
  #2847  
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Running 1c or lower won't harm the pack, but has no benefit. Charging super low (like 0.1c) ca damage the pack as most chargers aren't precise enough to do the job well as the low current settings. This goes for most brand packs.
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Old 01-14-2014 | 08:50 AM
  #2848  
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Hi guys. Anyone knows their turn around time from the date that you ordered the in stock batteries? Thx
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Old 01-14-2014 | 09:03 AM
  #2849  
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Originally Posted by xxx123
Hi guys. Anyone knows their turn around time from the date that you ordered the in stock batteries? Thx
Quick, I've ordered on Wednesday night and gotten my batteries by saterday. They usually get shipped the next day for me.
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Old 01-14-2014 | 10:41 AM
  #2850  
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Originally Posted by xxx123
Hi guys. Anyone knows their turn around time from the date that you ordered the in stock batteries? Thx
I've ordered twice and my orders have shipped the next business day both times. And I've been really happy with my purchases! And they ship USPS Priority so you get them quick once they are shipped out.
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