RC Nightmare Community Blog

What Kind Of Battery To Get

If you are anything like me when you first got into RC you realized there were a lot of choices. Big decisions like what kind of vehicle to get and smaller ones like what kind of tires to use. For me no decision came easily and one I made a few mistakes with was what type of battery to get. Certainly you have to decide on some of the larger decisions like whether to get a Lipo, NiMh, or Nicad. Then you have to decide what brand you want to get, certainly that is something we will touch on in a different post. What we are aiming to help you figure out is what exactly is the difference between batteries.

The number of cells in the battery will determine the voltage. In the Lipo battery world, easily the most common among RC hobbyists the 2cell pushes out just over 7volts, that is going to determine the power getting to your wheels. If you want to go faster, you go from 1S to 2S or from 2S to 3S. There are restrictions however so make sure your motor and ESC can handle it. When I got my first vehicle I ran out and bought a bunch of the most powerful battery it would support.

Learn From My Mistake:
At the time it was 3 or 4 3S Lipo batteries. I learned a valuable lesson however the first day I went to the track and found out they only raced with 2S Lipo batteries and I just wasted about $230! Sure having the extra speed to tool around my yard was cool but I really wanted to race so the 3S batteries were useless. So lesson one! Know what you want to do. If you want to race in leagues, make sure you check the specs. If you just want to have fun and go fast, thats a totally different type of research.

After you pick out what type of battery you want to run (were sure you are rockin a Lipo because they are lighter and you typically get longer run time with them) and how many cells you want to run in series you will want to look at runtime.

Definition:
If you are talking about a 2S Lipo battery that is a 2 Cell in series Lithium Polymer battery and get 7.4 Volts (power)
If you are talking about a 3S Lipo that means you are now running 3 cells in series and get 11.1 Volts (more power)

What Does Mah Mean:
The last decision you have to make is in regards to Mah. If you have shopped for batteries you will notice there are a lot of different options. Simply put Mah relates to how long you can run, the more Mah you have the longer you can draw on the battery. There is however a cost for that and it isn’t always one to one. What I mean is a battery with 5000Mah is usually more than double the cost of one with 2500Mah. (Mah stands for milliampere-hour)

The bottom line is this, if you want to really burn rubber get the max amount of cells in series your motor can support. If you want longer runtime maybe settle for the 2S instead of the 3S but get the beefy Mah. You will notice the trend on this site is always to say it depends what you want to use it for and it holds true here. If you want to race it’s easy get a 2S Lipo with a decent amount of Mah.

Cooling Matters Too:
Keep in mind though, the longer you run your RC the hotter it will get so if you are going for long run time consider investing in a little additional cooling, if the motor or ESC overheats it doesn’t really matter if you have 10,000 Mah. You’re going to have to wait for it to cool down to keep racing.

Warning:
Remember if you are going to use Lipo Batteries make sure you are always charging your RC batteries in a protective Lipo sack. (my wife makes me charge them outside!) I really questioned posting the video below because its a little over the top but check it out. Also as a disclaimer I have NEVER had this happen.

In summary, just get the battery that best fits your needs, I realize I took a long time to say something pretty obvious but a little thought on what you want to do with your new RC Car or Truck can save you a good bit of money down the road.

18 thoughts on “What Kind Of Battery To Get

  1. tacticalcube says:

    what lipo brand would you suggest getting

  2. jeremy says:

    I have always used venom power, that said I am not really a battery expert. I have about 10 venom’s and they all run great and haven’t exploded…..yet

  3. thesctracer says:

    are maxamps batteries any good

  4. Condell says:

    Maxamps are WAY overpriced from what I hear. I know a lot of people like zippy and turnigy batteries from http://www.hobbyking.com. They are very low priced and decent from what i’ve read. Although I know some people have issues with them too, just randomly going dead on them.

  5. jeremy says:

    yea but you gotta love those maxamps vids where the dude puts his battery in water then drinks it lol….

  6. Allan says:

    yup, my ‘cheap brand’ battery order should go out sometime this week. I’m interested to see how they compare to our standard Venom Power batteries.

  7. Mike says:

    Like most things, you usually get what you pay for. You may not want to but the Rolls Royce, but you probably don’t want a Yugo either. My local hobby shop is pretty good about explaining the differences in brands and prices. Any I’ve found upgrading from the “cheap” batteries does make a difference, though they may not perform as well as some of the high end batteries they work great for me.

  8. caseycar5 says:

    i usually use 2cell lipo for safety cause 3cells and 4cells overheat too much

  9. Tane says:

    I use 2 cell LiPo for power long runtime and less dangerous

  10. Brandon S says:

    Keep in mind that 3s are only more dangerous if you don’t gear down properly. Almost all R/C cars are geared from the factory for 6/7cell NIMH or 2s LIPO. If you want the power and speed of 3s you have to gear down to keep the heat down especially if you drive off the pavement.

    I’ve also had great success with the Venom Lipos.

    I noticed you didn’t touch on Discharge Ratings (“C” rating). Make sure to purchase Lipos with at least a 20C discharge rating. If you are buying “off brand” packs, shoot for a 25C or higher.

  11. jeremy says:

    Yea, its funny you mentioned that, there is a c rating post scheduled for tomorrow :) . You are 100 percent right on this. I think its time to give you your own posts!

  12. Brandon s says:

    I know your more than qualified but I’m happy to help!

  13. jeremy says:

    I would love to have a weekly post by you.

  14. Shwack219 says:

    Thanks for the write up, i am looking into a Lipo for my Stampede, the 10 minute run time isn’t cutting it for me.

  15. batman says:

    my lhs tells me that there is only 2 or 3 lipo manufactures.
    and everybody else rebrands them

  16. nol3n says:

    Thanks for this post…When I first got my NiMh 7 cell, I didn’t know you had to have a LiPo compatible charger. When I choose to go LiPo, my $30 phantom charger will be rendered useless…

  17. Shagnat says:

    IMHO, SPC packs are far and away in the top 2 or 3 of LiPo batteries. Venom, IMHO, are in the bottom 10. They are OK only because they are LiPo and not NiMh.
    I know this from experience as I have 2 5000mah 30c Venom LiPos which I thought ATT were fine. However, after trying 2 or 3 other brands (all name brand) the Venoms failed miserably. SPC provides the most bang for the buck IMHO and now I have a small stable of them in 2s and 3s.
    Give one of them a try and you’ll see what I mean.

  18. jeremy says:

    Yes, can’t say I disagree, problem is, they need to get some distribution!

Leave a Reply

Your email address will not be published. Required fields are marked *

You may use these HTML tags and attributes: <a href="" title=""> <abbr title=""> <acronym title=""> <b> <blockquote cite=""> <cite> <code> <del datetime=""> <em> <i> <q cite=""> <strike> <strong>