Yesterday, 07:45 PM
Rekitter of fine aircraft
United States, TX, Spring
Joined May 2004
966 Posts
Quote:
 Originally Posted by RainyDayRC Putting on a bigger battery won't make anything blow up because the only difference is that is will weigh more.
It IS possible to blow stuff up by switching to higher discharge rate batteries, but I doubt the Bug is close enough to the edge that this is a factor. Other applications, however, can have issues. For example, if you have a motor propped to give 50 amps max with a 2s2000 25c pack with a 50a ESC, then stick a 2s2000 50c pack in it, you're risking blowing up that ESC because there's a good chance the 50a you measured before was limited by that pack, and the new pack can supply 100a. When picking out a power system, treat it as a system from the battery to the prop and take every component into account.

Quote:
 Originally Posted by Jammarson02 Damm ! Didn't think of physical dimensions, Thank you ! Can you please explain something as I am a TOTAL NOOB to this 150mAh 1S 3.7V 25C LiPo Battery the 150mAH is capacity, flight time for basics What is the 1S ? 3.7v I assume is just the voltage rating What is 25C ?
The quick and dirty guide to translating LiPo/LiFe to English:

For a 6s3000 25c battery with a 3c max charge rate:

6s means 6 cells in Series. You may see something like 6s2p, which is 6 cells in Series, 2 in Parallel, for a total of 12 cells. This configuration doubles the capacity and discharge rate but isn't seen as often recently thanks to cells that can supply more current.

3000 is the capacity in milliamp hours, or the amount of current it can supply for 1 hour. Divide by 1000 for amp hours. Occasionally people will name packs by the amp hour rating, so the above example would be a 6s3ah. I note packs differently to save space in the log, and that pack is a 6s3k.

25c is the amount if current it is designed and rated to supply noted as a factor of the Capacity. Multiply the C rating by the Capacity in amps (25C x 3000 mAH / 1000 mA per Amp = 75 amps).

Max charge rate is similar to discharge rate in that the rate is noted as a factor of Capacity. 3C x 3000 mAH / 1000 mA per Amp = 9 amps max charge. It's best to stick with a 1C rate, which will top off a dead pack in an hour (theoretically, since there are losses and nothing is 100% efficient it will take longer, and unbalanced cells in a 2s or larger pack add more time). It's easier on the cells and less likely to cause "thermal issues." Like fire spraying out of the pack.

I had to become an expert on lithium batteries when I had knew implanted in my back and wired into my spine (making me a cyborg, by strict definition). I've only killed one pack, and that was due to my trying to cram too big a pack into a tiny spot previously occupied by 4 AA cells in a ridiculously fast nitro touring car with remote start. I'll be rebuilding that one with a different pack buried in the foam bumper.
Yesterday, 07:51 PM
Registered User
United States, OH
Joined Mar 2012
693 Posts
Quote:
 Originally Posted by nick98338a And... do these batteries have the proper connector to work with the nQX?
I got 3 of these off ebay about a month ago. Apex was the name on battery 200 Mah 35c. They a tad bigger but I love them. I went back on ebay to order more and they were out of stock. I have a few UM planes and the connectors are the same for the Nano and my planes. Good batteries IMO. I think I paid 12.50 for 3 with free shipping. Just looked they are back in stock. Go to bottom of page.

http://www.ebay.com/itm/321210565147...84.m1497.l2649

Sorry, I went back to order more and they still out of stock.
Last edited by Ginohio; Yesterday at 08:12 PM. Reason: added link. They are gone
Yesterday, 10:58 PM
Registered User
United States, MN, Maple Grove
Joined May 1999
237 Posts
Quote:
 Originally Posted by Sabin has anyone figured out/learned of any type of gyro recalibration for the nqx? I know there is one out there for the 180qx...
AFAIK, it recalibrates every time you put a new battery in.
 Today, 10:13 AM I'm A very Determined NOOB ! United States, NY, Port Jervis Joined Nov 2013 38 Posts Thank you everyone for all your help and knowledge ! I decided to just get 2 extra batteries that match exactly, I was worried about the physical dimentions since it does go inside the machine. As far as the same connector plug, yes it was the same.
 Today, 10:59 AM Registered User United States, WA, Graham Joined Dec 2013 8 Posts Sounds like you got something that will work OK for you. So, you are up to step 2 already. Step 1 ... Buy the kit. Step 2 ... Buy more batteries. Step 3 ... Buy a charger that can charge multiple batteries. Step 4 ... Buy even more batteries.
 Today, 01:06 PM I'm A very Determined NOOB ! United States, NY, Port Jervis Joined Nov 2013 38 Posts LOL Nick ! Yes step 2 I just did, as far as the rest, we will see about that, the Nano is a Christmas gift for my son. I just hope he likes it ! If he don't I'll take it off his hands.
 Today, 01:17 PM Let's go fly United States, WA, Seattle Joined Oct 2013 231 Posts It's a great way to get into multirotors because it's so light that I have no fears of running into the walls or the ground because it simply won't hurt itself.