Re: Batterys and chargers

[paul needham <paul.2.needham-at-btconnect.com>]

Francisco

Those motors are nowhere near powerful enough for a KCM tank , I
suspect you need a motor that can draw at least 7-10 amps which at 12v is
84-120 watts.

All the KCM's I have use a standard model 540/550 motor in them [ 550 I
think ] try looking for 540/550 motors used in models boats , they tend
to be 12volt and will probably give you watt/current ratings.

This site only shows no load current , is there a relationship between
that and the max load current ? if not these specs are not much
help.

For the battery say you are drawing 2*7 amps = 14 amps then batteries are
rated as amps/hour so divide this capacity by your current usage this
will be in minutes then assume the battery can do that for about 75% of
those minutes.



Paul

At 18:17 15/09/2004, you wrote:

Sorry forgot to give the website I was looking at, here it is. http://www.surpluscenter.com/electric.asp?UID=2004091512052678&catname=electric hope it works.
 
Also are these http://www.surpluscenter.com/item.asp?UID=2004072308234911&item=10-1750&catname=electric the right motors to mount to these KCM gearboxs http://www.surpluscenter.com/item.asp?UID=2003081623124635&item=13-1023&c ? 
 
                                                           Francisco Arias

----- Original Message -----

From: franciscoarias-at-bellsouth.net

To: tanks-at-rctankcombat.com

Sent: Wednesday, September 15, 2004 9:07 AM

Subject: Batterys and chargers

Would any of the these batteries (especially the first one), work to power two KCM, and if so what chargers would work (hopefully there is one on the same website)? Construction will be starting soon.                                  

      

                                               Francisco Arias