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From: Joe Sommer <anvilus9-at-adelphia.net>
Subject: Re: power question [TANKS]
Date: Sat, 05 Aug 2006 09:45:34 -0400
Reply-To: tanks-at-rctankcombat.com

At 07:18 PM 8/4/2006 -0400, BrendanKotlanger-at-aol.com wrote:
>In my tank, I have 2 12 volt 18 ah batteries in a loop to power my 
>motors.  I use Sommer's $100 speed control.  The logic system is powered 
>from a 12 volt 7ah battery.  I recently discovered with my turret speed 
>control that I can use 5 volt power regulators in a parallel to handle 
>higher amps and run the turret at slow speeds.  Sommer's speed control 
>only consumes 330mah.  I calculated that my radio setup would consume 
>about 3 amps with maximum current draw. Would it be safe to use the logic 
>coil battery with the regulators to power my radio equipment?  I don't 
>want to use 3 sets of batteries in my tank.

It should be OK unless spikes from starting/stopping
your turret motor causes momentary radio glitches.

As an example, I use four C batteries to power my radio
Rx, two standard servos and my motor controller.  I change
them before every battle.  When they get low, firing the
trigger servo creates a momentary radio glitch that causes
my Hetzer to jerk backward about 1/4 inch.  It is cool
because it looks like recoil but it ruins long-range aiming.


Joe Sommer, Anvilus Machine Works
2378 Nantucket Circle, State College, PA 16803
814.234.4773     anvilus9-at-adelphia.net