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Thread: Marine battery

  1. #1
    RC Qualifier
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    Marine battery

    I know marine batteries are recommended over automotive batteries for running chargers, but I haven't been able to find what kind of marine battery to get. Looking at Sears.com, there's a "marine starting" battery for $105, a "group size 34M" for $200, and a "group size 31M" for $250...
    Also, is there a way to determine how many r/c pack charges you can get from one charge on a marine battery?
    JRx2, Mini-Z, MRC, Summit, Slash, Revo VXL, etc.

  2. #2
    RC Enthusiast
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    If your looking at spending that much on a battery you should just get a power supply. It plugs into your normal wall outlet and converts the power into DC for your chargers.

  3. #3
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    Um, thanks, but I'm looking for power options when there are no outlets around...
    JRx2, Mini-Z, MRC, Summit, Slash, Revo VXL, etc.

  4. #4
    RC Enthusiast
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    What you want then is a deep cycle battery Which marine batterys are. Also in trucks with plows a lot of people run optima batterys. Also to figure out how many charges it would make you would need to know the amp hours of the battery you were using to power your charger and the capacity of the batterys you were charging

  5. #5
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    egnix, many of the modern chargers run on twelve volts for a reason, so that you can run them via car voltage while out in the field.. So I would recommend the power supply and plan on running them via a car in the field. At least thats what I do. But hey, if you want a good batt to run in the field by itself.. optimas are the way to go. Spendy though.
    Reformed nitro operations specialist..

  6. #6
    RC Turnbuckle Jr.
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    Let me ask you this...are you wanting a stand-alone battery to sit on your pit table? Or are you wanting to replace the battery that is in your vehicle with one that is better suited for running chargers off of?

    The reason I ask is because the current battery already in your vehicle is more than capable of running a charger or two, and all you need to do is run a power cable from your car's battery to the charger on your pit table, or wherever your charger is...you don't need a seperate battery. If it's a long day, all you have to do is crank your car for a few minutes to recharge the battery, just unplug the charger first.

    If you aren't 16, or don't have a vehicle, I can see where you would want a seperate stand-alone battery...and in that case, an Optima Red-Top would be your best choice (I run them in my Jeeps, which power winches, lights, air-compressors for the lockers, etc., and they do great!).
    Project: BL Revo Race Quad & BL G-Maxx G3R CF Revo

  7. #7
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    Here are a couple from grainger.com.

    I use them for my basement sump pump for when power is out for a few days and need to keep the basement from flooding. One battery is always hooked up to the basement sump pump and the other can be used as a standby or if needed for a multi-day event with no power and don't want to use your car battery.

    The disadvantage of the grainger.com batteries is they are very heavy to move.

  8. #8
    RC Turnbuckle Jr.
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    i would go to walmart and pick up a ever start for 79$ it will get charging done. for a low cost. but if your looking for a nice deep cycle battery we use interstate rv/marine batterys in all of our heavy equipment.

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