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Batteries Duff battery doh

Discussion in 'Electronics' started by Slobberdog, Mar 7, 2013.

< Imax B6 Charger | Voltz 6250 and 350W power supply >
  1. Slobberdog

    Slobberdog Well-Known Member

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    Gone to charge my battery that I used for a few minutes of hovering 4 max, last night and had an error message come up on my charger, brand new battery only been charged once and only been hovered once with a little bit of use for set up.

    Digi volt meter says 8.7 volts :disturbed:

    So logged a ticket with, come on guess, HK. We will have to see what they say, lol,

    Anyways what batts do you use, this was turnigy, :(
     


  2. breeze400

    breeze400 Spagetti Pilot

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    That's what I use but the nano tecks. It's probably just out of balance.
     
  3. coolgabsi

    coolgabsi Super Mod & DEAL KING!

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    I love my turnigy a and nano techs they fly awesom. Been flying them for over a year now. Bad batteries can happen.. True!

    This a 3 cell battery? 8.7 is pretty low. Brand new... Then yes I would have them change it for you


    I use turnigy batteries on my 700 too (12cell setup)

    Fly safe!! :) have fun!
     
  4. Derek

    Derek Well-Known Member

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    I have 4 Turnigy batteries and 3 Nano Tech's. All have worked flawlessly so far.
     
  5. murankar

    murankar Moderator Staff Member Armed Forces

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    3 GensAce 2200 mah 25c packs. These things take a licking and keep on ticking. Good luck getting them, they are almost always out of stock.
     
  6. Tony

    Tony Administrator Staff Member

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    I have never had an issue with a Turnigy battery, just ask Matt (callsign4223), he now owns them lmao. But, because of being ripped off 100 too many times from China, I'm switching over to Pulse batteries from now on. I'm done with their crap over in china.

    And, what I would do is pin out the battery and check each cell with a volt meter. If you find one that is low, you can do westy's method of charging just that one cell which can work sometimes. I have been able to take two AA batteries in series (3vDC) and plug it into that one cell for one second to give it a surface charge, enough to get the charger to see it as a good cell and then let it do it's balance thing. However, you do this at your own risk and it could short out the pack and possible start a fire.
     
  7. Westy

    Westy LEGEND

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    yep ... what he said! it is just to get that low cell up to within the Tolerances of the ECU on the Batt Charger.... it should be all sweet...... just set it up as a single cell charge.
     
  8. Slobberdog

    Slobberdog Well-Known Member

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    Thanks guys I have raised a warranty claim with them so we will just have to see,
     
  9. Tony

    Tony Administrator Staff Member

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    I hope all goes well for you.
     
  10. Slobberdog

    Slobberdog Well-Known Member

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    Thanks Tony

    - - - Updated - - -

    Tony if I use a non balance charger will it pick up the cell voltage enough to then balance afterwards, just curious, as if they won't replace I would like a backup plan per say, I don't like giving up on things,
     
  11. Lee

    Lee Well-Known Member

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    You can set the charger to Nihm setting and charge it on a very low amp eg 0.5A to bring the low cell up to a point that the charger will recognise it. then switch back to Lipo. There are many videos on youtube explaining this.
    DO it at your own risk though!!
     
  12. Tony

    Tony Administrator Staff Member

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    I think I would rather do it by the cell as stated before.

    This is another option, but the bold font in read says it all.
     
  13. Slobberdog

    Slobberdog Well-Known Member

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    Guys I don't want to be silly for what is £10 sixteen dollars ish, I am not gonna worry to much.

    Anyway picked up a couple of 2250 33c bats on way into work as I was passing the model shop, cost a couple of pound per battery more but no wait for delivery.
     
  14. Slobberdog

    Slobberdog Well-Known Member

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    Guys an update,

    Just been asked to provide more pictures for hobbyking of each cell voltage and a total voltage again here's my results.

    Cell 1 - 2.95 v
    Cell 2 - 3.08 v
    Cell 3 - 3.15 v

    Total - 9.18 v

    Low and behold it gained charge and now allows me to charge it.

    Curious it is, how why, no evidence of puffing so am watching it charge now, been going for 12 mins no heat in battery and is up to 11 v.

    By golly I might have just got away with this, :D

    Oh can someone recommend an in flight battery warning product or does no one use them.
     
  15. Lee

    Lee Well-Known Member

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    It happens quite a lot. Batteries arriving with a low cell. After a few charges they settle into a balanced state again.
    There are many low voltage alrams on ebay. THIS Type i use. Its very load, and small enough to fit on your heli without getting in the way.
     
  16. Slobberdog

    Slobberdog Well-Known Member

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    Thanks Lee, just hard to believe that it could gain 0.5 v without touching it, lol, not that I am complaining........
     
  17. Tony

    Tony Administrator Staff Member

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    That is what you call a residual charge. sometimes you get lucky and one will bring it's self up a bit. Adding a little heat from a hair dryer will also do the same thing.
     
  18. Slobberdog

    Slobberdog Well-Known Member

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    Well had to charge it in two stages, as i had to go out, took a while battery got to 12.58 v well balanced over the three cells, put approx 1430mah back into the battery.

    Well guess I had a lucky escape there.........
     
  19. Slobberdog

    Slobberdog Well-Known Member

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    You gotta love translation, told hobbyking customer service, my battery voltage came back and was able to charge it again, the reply I got, please send through photos of the battery voltage per cell so we can see fault. And this was supposed to be from someone named John, lol
     
  20. murankar

    murankar Moderator Staff Member Armed Forces

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    Chinese folks have two names their birth name that they use with their country men and their business name which is usually an American name. I learned this when working shipping and receiving for a metal plating company.
     
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