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Thread: lipo question

  1. #1
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    lipo question

    first..can lipos be use with the stock esc?

    2nd..can these be use in the summit...http://www.hobbypartz.com/83p-3300ma...4-20c-car.html

    3rd..is this a good charger
    http://www.hobbypartz.com/thac6smbachw.html
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  2. #2
    RC Turnbuckle Jr. noir 522's Avatar
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    check the summit FAQ under EVX-2 esc
    MAN, Use Common Sense.
    Outside? THERE IS NO BOX !

  3. #3
    RC Turnbuckle Jr.
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    Quote Originally Posted by TMaxxcrazy33 View Post
    first..can lipos be use with the stock esc?

    2nd..can these be use in the summit...http://www.hobbypartz.com/83p-3300ma...4-20c-car.html

    3rd..is this a good charger
    http://www.hobbypartz.com/thac6smbachw.html
    1) yes
    2) way too small
    3) yes

    you need more like 20-30c 4500-5000mah 2s lipos to run well, dont waste your time or money on little 1/10 TC packs. Yoiu will also need to ( read the FAQ ) use an LVC device to prevent the lipos from over-discharging ( below 3.0v per cell ).



    Plenty of info about that in the faq ( novak 2s smart stop, or a buzzer-type lvc will be good ).
    Keeping the Mods busy is my specialty...

  4. #4
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    this is the most important info Charge/discharge power: max. 50/5 Watts

    so 2s max charge rate about 5.9 amps
    on 3s batts max charege rate about 3.9 amps

    on a 4s about 2.9 amps max . this might be important to you if you rig to charge both those 3300's which would be 6.6amps at 1c

    watch wattage of chargers when trying to shop for one. IF they dont give it watch out. you need that info to decide .

  5. #5
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    Quote Originally Posted by TMaxxcrazy33 View Post
    first..can lipos be use with the stock esc?

    2nd..can these be use in the summit...http://www.hobbypartz.com/83p-3300ma...4-20c-car.html

    3rd..is this a good charger
    http://www.hobbypartz.com/thac6smbachw.html
    1st is yes but get a lipo cut off
    2nd seems a bit small to me.. get the highest c rating possible
    3rd sorry no experience with that charger

  6. #6
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    I run 5000 20 c there ok but still kinda weak im looking to go about 40c

  7. #7
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    A 5000 mAh 2S pack requires 8.4volts @ 5 amps = 42 watts for a 1C charge (approx 60 minutes). A Thunder AC6 will do this as it is 5 amps max and 50 watts max. If you want to charge two 2S lipos at the same time you will need a more powerful charger.

    Two 2S 5000 packs in SERIES charge at 4S 16.8 volts @ 5 amps = 84 watts
    Two 2S 5000 packs in PARALLEL charge at 2S 8.4 volts @ 10 amps = 84 watts

    BIG PACKS need BIG CHARGERS! I would never consider less than 20 amps and 300 watts (iCharger 206B and PS350 power supply for example). There are new packs out that charge at 10C -12C rates!!! but the majority can be charged at 2C (with balancing).

    1C was the standard rate when we did not even have balancing. Most of todays packs can easily be charged at 2C or above if balanced at the same time (see manufacturers specs).

    You can get the 2S power for a Novak 2S Smart stop off the balance tap of the BEC side pack much easier than the power connector. PM me if you need assistance.
    Last edited by Hughes500Bob; 12-21-2010 at 05:21 PM.
    I make tap adapters and power harnesses.

  8. #8
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    thanks guys..havent been on in the past few days..thanks for the info

    ok..so whats a good lipo for the summit..
    Last edited by TMaxxcrazy33; 12-24-2010 at 07:26 PM.
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  9. #9
    RC Turnbuckle Jr.
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    You did read the summit FAQ right?
    You did consider searching ( the word 'lipo' ) before asking such an obvious & common question?

    Minimum of 20C discharge rate, mah capacity of 4500; the higher the better in each case, but remember that the summit has limited space for batts ( dimensions in the FAQ ) and the wires may exit at an awkward angle too so a little dremeling may be required to the chassis/ doors.

    Look on hobbypartz.com for some cheap and cheerful lipos ( blue lipos & Gens Ace ), avoid ebay no-name lipos ( winforce for example ), and bear in mind you will need an LVC device to prevent over discharge; all in the FAQ, take the time to read it & understand it ( saves asking noob questions ).

    To find other sources of batts and LVCs, check out these links:

    USEFUL LINKS

    short cut to some tutorials on lipos, chargers and LVCs & how to use them:

    TUTORIALS

    Have fun.
    Keeping the Mods busy is my specialty...

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