Lipo 4S battery in an XMAG

Collapse
X
Collapse
 
  • Page of 2
  • Time
  • Show
Clear All
new posts
Previous 1 2 template Next
  • sQuidvision
    Learning Mag-Fu

    • Jun 2011
    • 823
    #16
    As always, depending on cost I would be down for one.

      Comment

      • hitech
        Not a shedder of vortices
        • Nov 2001
        • 4775
        #17
        I take it nimh batteries have the surface charge phenomenon like lead acid natteries.batteries. the resistor woild be a good and easy addition.


        Hey Hitech your starting to sound like me! - AGD
        Hitech is the man.... :eek: - Blennidae
        The only Hitech Lubricant

          Comment

          • athomas
            Of course it works-its AGD
            • Jan 2002
            • 8039
            #18
            Yeah, I guess you could call it surface charge. Its about 0.1V above the stable high voltage value for each cell. For NiMh cells the stable charged value is about 1.3V. A 14cell NiMh pack like the emag pack would result in max charge of 1.4V x 14 = 19.6V, which is close to the 20V that most experience on a newly charged pack. After is sits, it settles to 1.3V x 14 = 18.2V. If the pack is really good and has almost no leakage, it might stay close to 19.6V until it starts delivering current to a load.


            For charging, each cell must be done individually. That is why you see special multi-pin connectors on LiPo packs. I have seen LiPo mult-cell chargers for as low as $30 and 5s battery packs as low as $50.
            Last edited by athomas; 10-22-2012, 04:25 PM.
            Except for the Automag in front, its usually the man behind the equipment that counts.

              Comment

              Previous 1 2 template Next
              Working...