Re: Victor 883 problem, please help.
 

Is the battery protected in some way? What you describe sounds like a protection device cutting in at high currents. Do you have a breaker installed?

Re: Victor 883 problem, please help.
 

If you're only supplying 7.1 volts, a quick increase in current could be pulling the Victor's input voltage down to the point where it doesn't work properly. Are your supply wires dropping too much voltage because they're too long or too high a gauge?

Re: Victor 883 problem, please help.
 

or poor connection quality? as in bad crimps or the like?

also look for wire damage...

Re: Victor 883 problem, please help.
 

All valid points and I think you are all right.

Remember, this victor is used to seeing 12-24v. I am using a 7.2v pack with no cutoff or breaker, its probably pulling 60 or so amps so the voltage is dropping below 6v which I believe it minimum for victors.

I will put another pack in parallel to see if it solves the problem, I anticipate that it will.

Re: Victor 883 problem, please help.
 

I am sorry, the Victor will not work reliably at 7 volts. The internal voltage regulator will drop out at near that input voltage.

Re: Victor 883 problem, please help.
 

Hello everyone,

Thank you all for the suggestions.

Here is where I stand.

I wired two 7.2v nimhs in series for a 14.4v pack. Powered the victor, it ran fine for a few minutes, then it started to do the power cutoff thing again. This was literally 60 seconds from when I started driving around under LIGHT throttle. Literally couldnt have been more than 50 amps I was pulling in very short bursts. The voltage could not have possibly dropped from 14.4v down to 6v because of a 50 amp pull, that just doesnt sound right.

After I took the car back inside, I inspected it, couldnt see anything wrong. I think the wire gauge is a little on the thin side, but it didnt even get warm so I dont see how that could have had an effect within window of just 60 seconds or less.

The power cutoff is strange and it is starting to aggravate me to no end!!!

Not sure what else to do, maybe get thicker wire? Better joints? The joints are regular crimp on lugs and the wire is 18 gauge.

Re: Victor 883 problem, please help.
 

DB,
I think it is telling that you ran for almost a minute before problems started. What are the ratings on your 7.2 volt battery packs? There should be something rated in AH or maH listed onthe batteries label.

Re: Victor 883 problem, please help.
 

Hello,

Thank you for all the help. I figured it out.

I fully charged my batteries and re crimped the connections and it ran fine. The voltage drop was attributed to one of my batteries not having a full charge and the other was charged.

When I was charging the batteries I did them in parallel and for some reason one of them might have gotten lose and the charger showed that it peaked but it really wasnt fully charged.

The car ran great and it really screams on 14.4v!

Thank you guys!

Re: Victor 883 problem, please help.
 

Consider that a confirmation of the typical advice not to charge batteries in parallel like that. Unless you've always kept the batteries in parallel, so that they have experienced the same conditions throughout their life, you're likely to have problems. For example, one battery might charge first and fool the charger into shutting off before the other one has gotten a significant charge.