1. If you would like to get rid of these banners and the ads within the posts, all you have to do is sign up and they will go away!
  2. Welcome to Rc-Help, are you here looking for the PDF Plans? They are located in the store in the tab above, but you must be signed in to access that part of the site. It only takes a second to sign up!
  3. Like Us On Facebook!
    Hello Guest, it occurred to us during that last server failure that we had no way of informing the members of the site of the failure and I would like to invite you to like us on facebook so that you can get updates if the site happens to go down again. We don't post much over there unless we are updating the members so we will not flood your feed like some places do. Just click on Like and then allow notifications and that's it. See you there soon!

    Click Here To Rc-Help's Facebook page!
    Dismiss Notice
Dismiss Notice
Hey Guest, I see you are not signed up on our forum yet. Did you know Registration is FREE and is only a couple clicks away? You can even sign in from Facebook, Twitter or Google+ for your convenience! So what are you waiting for, CLICK HERE to join in on the conversation!

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

    Joined:
    Feb 13, 2013
    Messages:
    3,470
    Likes Received:
    138
    Trophy Points:
    63
    Location:
    Wales
    Lipo alarm ordered, thanks Lee. Balance extension lead for charger and second for the alarm ordered, so I can mount alarm at back of heli in sight.
     


  2. coolgabsi

    coolgabsi Super Mod & DEAL KING!

    Joined:
    Apr 17, 2011
    Messages:
    4,121
    Likes Received:
    88
    Trophy Points:
    48
    Occupation:
    Engineer
    Location:
    North Dallas, Texas, United States
    non balance charger isnt a BAD thing. Its just the matter of balancing them once a month or so .. as a good practiec. But a non balance charger wont pick up any cell voltage. It only picks up the total off the red and black leads and tried to bring the battery to the max voltage setting
     
  3. Slobberdog

    Slobberdog Well-Known Member

    Joined:
    Feb 13, 2013
    Messages:
    3,470
    Likes Received:
    138
    Trophy Points:
    63
    Location:
    Wales
    Will balance them each time I think, that way I know that I am not going to overcharge a single cell
     
  4. coolgabsi

    coolgabsi Super Mod & DEAL KING!

    Joined:
    Apr 17, 2011
    Messages:
    4,121
    Likes Received:
    88
    Trophy Points:
    48
    Occupation:
    Engineer
    Location:
    North Dallas, Texas, United States
    that is a GREAT practice.. then you will need a balance charger.
    :)
     
  5. Slobberdog

    Slobberdog Well-Known Member

    Joined:
    Feb 13, 2013
    Messages:
    3,470
    Likes Received:
    138
    Trophy Points:
    63
    Location:
    Wales
    Am using sigma eq mini 12 v or ac upto 4s charger, its good enough for me as a beginner, and it did not break the bank.
     
  6. coolgabsi

    coolgabsi Super Mod & DEAL KING!

    Joined:
    Apr 17, 2011
    Messages:
    4,121
    Likes Received:
    88
    Trophy Points:
    48
    Occupation:
    Engineer
    Location:
    North Dallas, Texas, United States
    thats perfect .. I ued an Accucel 50W charger for 2 years until I finally could afford my 1000W build :) So .. till its working correctly.. ITS GOOD :)
     
  7. Tony

    Tony Administrator Staff Member

    Joined:
    Feb 21, 2011
    Messages:
    36,669
    Likes Received:
    1,419
    Trophy Points:
    113
    I would NOT run the batteries all the way down until the alarm is going off. It's not good for them. 80% of the packs mah is pretty much the standard. And just an FYI, I balance mine every time I charge.
     
  8. Slobberdog

    Slobberdog Well-Known Member

    Joined:
    Feb 13, 2013
    Messages:
    3,470
    Likes Received:
    138
    Trophy Points:
    63
    Location:
    Wales
    Gonna use approximate 3.5 v per cell as a trigger for the alarm, should give me best of both worlds and see what time in the air that gives me, then set my timer just under that,

    - - - Updated - - -

    Gonna use approximate 3.5 v per cell as a trigger for the alarm, should give me best of both worlds and see what time in the air that gives me, then set my timer just under that,
     
  9. murankar

    murankar Moderator Staff Member Armed Forces

    Joined:
    Dec 4, 2011
    Messages:
    9,000
    Likes Received:
    361
    Trophy Points:
    83
    Gender:
    Male
    Occupation:
    Soldier
    Location:
    Eastlake, Ohio
    I would go 3.8 or 3.9 volts per cell. I have my lvc set at 3.8 volts per cell and when it kicks in I am at about 78% depleted. Remember 3.7 volts is the lowest you should go if you want to get any kind of life span.
     
  10. Slobberdog

    Slobberdog Well-Known Member

    Joined:
    Feb 13, 2013
    Messages:
    3,470
    Likes Received:
    138
    Trophy Points:
    63
    Location:
    Wales
    thank Matthias, i was working it out at 80% of 4.2v which is Approx 0.84v use therefore 3.36v per cell thats why i came up with the 3.5v alarm point.

    Tell me if i got my maths wrong or i have mis understood how this works.
     
  11. xokia

    xokia Active Member

    Joined:
    Oct 11, 2012
    Messages:
    1,030
    Likes Received:
    18
    Trophy Points:
    38
    Location:
    Oregon
    This is standard HK wasting your time.
    First they ask you to measure the cells.
    Then they ask you to take a picture
    Then they ask you to ship back to them at your expense so they can test it.

    I think they must thing their customers are stupid and just go through the motions to make it appear like they are doing something. I buy Nano-Tech batteries nothing else from HK. If I get a bad battery I know just to write it off. So far I have only had 1 bad battery out of about 40 batteries
     
    Last edited: Mar 12, 2013
  12. Slobberdog

    Slobberdog Well-Known Member

    Joined:
    Feb 13, 2013
    Messages:
    3,470
    Likes Received:
    138
    Trophy Points:
    63
    Location:
    Wales
    Yeah theres no way i would have sent a battery back, would have cost as much as the battery, but would they have to be returned to the local warehouse or international warehouse, as cost would be a masive difference.
     
  13. murankar

    murankar Moderator Staff Member Armed Forces

    Joined:
    Dec 4, 2011
    Messages:
    9,000
    Likes Received:
    361
    Trophy Points:
    83
    Gender:
    Male
    Occupation:
    Soldier
    Location:
    Eastlake, Ohio
    With my batteries I know that if I fly 4.5 to 5 minutes my lvc won't kick on. That is my normal flight time. I usually replace about 1200 mah. In case I forget the timer I have the lvc as my back up.
     
  14. Slobberdog

    Slobberdog Well-Known Member

    Joined:
    Feb 13, 2013
    Messages:
    3,470
    Likes Received:
    138
    Trophy Points:
    63
    Location:
    Wales
    well used my battery last night that i had the problem with and it worked fine and stayed in balance, whoo lucky escape me thinks.........:excitement:
     
  15. xokia

    xokia Active Member

    Joined:
    Oct 11, 2012
    Messages:
    1,030
    Likes Received:
    18
    Trophy Points:
    38
    Location:
    Oregon
    Check each cell with a multimeter. You can put the charger in 1S mode and charge an individual cell. I have done this to a battery that refused to balance and now I have no problems balancing it. If you search the battery section I mention how to do this.
     
  16. Slobberdog

    Slobberdog Well-Known Member

    Joined:
    Feb 13, 2013
    Messages:
    3,470
    Likes Received:
    138
    Trophy Points:
    63
    Location:
    Wales
    My problem was got caught up in the moment, had the timer set for 5 mins and got to +4 mins so nine in total ish, lol you can say I learnt from that mistake got about five mins last night and had 3.8 v left in the cells.
     
  17. Tony

    Tony Administrator Staff Member

    Joined:
    Feb 21, 2011
    Messages:
    36,669
    Likes Received:
    1,419
    Trophy Points:
    113
    Yeah, there is no reason to charge each cell now that they are back to normal. Just fly the crap out of it and it should be fine. Glad it's working though because HK's returns SUCK!!!!!!!!!
     
< Imax B6 Charger | Voltz 6250 and 350W power supply >

Share This Page