The world's leading magazine for all model boating interests

Subscribe
The Modelling Hub Logo

The world's leading magazine for all model boating interests

Subscribe
Buy Latest Issue

Forums

Help

Register

Log in

Charging rates.

Advert
New Replies
Report Bug
Help/FAQs

Charging rates.

Home › Forums › All things floating › Charging rates.

  • This topic is empty.
Viewing 5 posts - 1 through 5 (of 5 total)
  • Author
    Posts
  • 18 September 2009 at 00:51 #23180
    mark burrows 2
    Participant
      @markburrows2
      i have got GWS mc2002 charger ,and i have 7.2v and 9.2v ni-mh battery packs,can anyone tell me what amps and how long for ? or any chart or system to work out setting to fast and trickle charging!
      18 September 2009 at 00:51 #3418
      mark burrows 2
      Participant
        @markburrows2

        GWS mc2002.

        19 September 2009 at 08:45 #23187
        ashley needham
        Participant
          @ashleyneedham69188
          Mark. I do not have a GWS charger, but the one I do have charges as either 300mA or 600 mA. The question of time is relativley simple…wait until the little green light says they are fully charged!!!!
           
          OR
           
          1800mA hr battery pack….3 hrs (ish) at 600mA  (3X600)   O.K, its a bit simple, but thats about it..!   .i dislike fast charging as I dont think it does the batteries much good in the long term.
           
          Dont let the batteries get too hot
           
          Ashley
           
           
          19 September 2009 at 08:50 #23188
          Dave Milbourn
          Participant
            @davemilbourn48782
            The voltage of the packs is irrelevant; the charge rate depends on their capacity. Slow charge at C/10 and fast charge at no more than 2C, where C is the “Amps” part of the capacity value. For example, C for a 3300mAH pack is 3.3A, so slow charge at 330 mA for 14-15 hours and fast charge at 6.6A for 30 minutes. Discharge the pack to 1v per cell before fast charging. All of this should be in the manual which came with the charger.
            Before anyone leaps in with the predictable reply e.g. “I  fast charge at 5C and my packs are OK”,  these values are recognised as safe for chargers which aren’t fitted with auto-discharge and voltage delta-peak cut-off – neither of which I trust anyway!
            Suit yourself – works for me.
            DM
             
            19 September 2009 at 10:21 #23189
            mark burrows 2
            Participant
              @markburrows2
              thanks for info,i totally  understand now,so i can now charge with out any worries,what would i do with out your great forum.i wish portsmoth had more clubs and fresh water ponds.
            • Author
              Posts
            Viewing 5 posts - 1 through 5 (of 5 total)
            • Please log in to reply to this topic. Registering is free and easy using the links on the menu at the top of this page.

            Latest Replies
            Report Bug
            Code of Conduct
            Help & FAQs

            Code of conduct | Forum Help/FAQs

            Advert

            Latest Replies

            Home › Forums › All things floating › Topics

            Viewing 25 topics - 1 through 25 (of 25 total)
            Viewing 25 topics - 1 through 25 (of 25 total)

            View full reply list.

            Advert

            Latest Issue

            Subscribe
            Buy Latest Issue

            Newsletter Sign-up

            Latest Replies