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Thread: enough amps?

  1. #1
    RC Qualifier
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    enough amps?

    does this power supply http://www.*********.com/*********/s...idProduct=6879
    put out enough amps to power this chargerhttp://www.*********.com/*********/store/uh_viewItem.asp?idProduct=7386
    charging 2 spc 2s 8000mah batteries in series?
    i just dont know how to figure out the amps and stuff...
    Emaxx 3905 FS in the market place.

  2. #2
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    I think so

  3. #3
    RC Champion
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    what charger is it? the link doesnt work for me. but im sure that will put out enough amps. its the best power supply they have.
    i bet my Quad could out RIP your Quad!!

  4. #4
    RC Turnbuckle Jr.
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    16 amps is more then enough for any charger.

  5. #5
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    so it doesnt need more amps if im charging two batteries?
    its this charger
    http://www.*********.com/*********/s...idProduct=7386
    Emaxx 3905 FS in the market place.

  6. #6
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    2S = 7.4V (will go higher in voltage during the charge process, close to 10V I believe)
    8000mAh = 8A
    Power = 2 x 10V x 8A = 160W

    That's what you need to charge your 2S Lipo packs in series at 1C (or 8A).

    The power supply outputs 16A under 14V (so 16A x 14V = 224W), so it covers the power needed to charge + the power consumption of the charger itself. It should be fine.
    E-Maxx on NiMH / Savage Flux on LiPO

  7. #7
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    that's brilliant pdcsq!!!
    lipo charging voltage for 2s is 8.4V (4.2V per cell).
    that charger's specs claim it can do 6s (25.2V) at 10A which is 252W which doesn't line up with their 200W spec. doesn't affect you now with 4s 8Ah, but something to make you go hmmmm...
    3905, TeknoNeu 1515/1Y, MMM on 6s & lovin it!

  8. #8
    RC Turnbuckle Jr.
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    Quote Originally Posted by FunkedOut
    that's brilliant pdcsq!!!
    lipo charging voltage for 2s is 8.4V (4.2V per cell).
    that charger's specs claim it can do 6s (25.2V) at 10A which is 252W which doesn't line up with their 200W spec. doesn't affect you now with 4s 8Ah, but something to make you go hmmmm...
    You're right.. you can charge 6s lipo's at 10 amps with that charger It will only go up to 9 amps on 6s.

  9. #9
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    I was looking at that one. The tech specs look great for the price, but the customer reviews aren't so good. If you are pinched for cash, you may give it a try, but I'm holding out & saving up for something a little better (hopefully.)

  10. #10
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    yea i have looked at the reviews but there are more positive ones than not.... not sure. i think im gonna try it and hope for look and inspect in good before use because some people said it burned the balancer due to poor soldering... yipes.
    Emaxx 3905 FS in the market place.

  11. #11
    RC Turnbuckle Jr.
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    If you are electrically inclined you can make your own out of a computer power supply.

    If you don't know what you're doing or aren't experienced in electrical things don't try it.. they can shock you pretty bad. I converted mine last night, it was really easy if you just follow the instructions, and it works great. It's also a lot cheaper.

    http://www.wikihow.com/Convert-a-Com...b-Power-Supply

  12. #12
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    well im not particullarly good with that kind of stuff and the power supply on hobby city is only 40bucks.. i think ill go with that
    Emaxx 3905 FS in the market place.

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