What would be the voltage reading of a 12V battery when the 12v trolling motor quits running? I have never checked this.
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What would be the voltage reading of a 12V battery when the 12v trolling motor quits running? I have never checked this.
when a 12v batt reads below 11.8 or below via a DVM its considered fully discharged isn't it?
Is this a trick questionQuote:
Originally Posted by Cane Pole
This chart might be helpful.
95 Battery Condition and State of Charge Charts
I guess I,m a quiter--Never had that happen--Doh
Here's another useful chart:
Attachment 64364
The lowest I've ever gotten the TM batt down to is 10.1 and it was starting to get a little on the extreme slow side. I don't even know if an electric steer would be able to even turn once it was down in that range. Ah the interesting things you learn when both the battery and charger decide to die at the same time.
Was this the battery reading with a load or no load ?
I have a ? that kinda pertains to this. When my start bat. is fully charged the HDS on the front reads 10.5 volts after about 6hrs. it goes down to 9.9to 10.1 volts. I check the Bat with voltmeter and it reads 12.2 at the end of day. Its a bass tracker 175 and Im using the stock wires upfront. Is it loosing voltage through the wires? Was thinking of running 12Ga. to the front.
If you know the size of the wire and load in amps, you can use an on line wire calculator and get the voltage drop.
CP I just checked voltage at bat. it was 12.8 plug up front for HDS was 12.8 Maybe the hds is off on the voltage reading. I cant see the unit pulling it down 2 volts.
The 10.1 was a check with no load and not having any load on the system for 15 minutes. I was also checking with a voltmeter on the terminals. The battery was starting to discharge rather quickly when being used during the course of the day. The battery charger failed and I managed to get a nice new experiment, with a 4 year old battery. I still don't trust the new battery charger and test the voltage before every outing.
I would expect the no load voltage to be the same as the source voltage. Without a load, you cannot read the loss. I believe the HDS and HB have about a 1 amp load, so a 12 ohm 12w resistor would simulate the units as a load.Quote:
Originally Posted by wilbur
Im not gonna worry about it CP the Motor still cranks plenty good at 9.9 volts at the unit and still has 12.2 at the end of the day,as read on voltmeter,and the HDS does not shut off.
I wouldn't worry either. If it works, it's hard to fix.Quote:
Originally Posted by wilbur
Dunno, but I have a 12v TM with the battery within 2' of it. I have 8 gauge wire feeding the TM. I can run a fully charged battery down in about 6 hours of on and off usage. I've never ran one down completely, but have experienced very slow steering and very low prop movement when this happens. Is why I now have an extra fully charged marine battery on board with a set of jumper cables to back up my TM or my main battery.Quote:
Originally Posted by Cane Pole
Suspicious eh.Devil IconQuote:
Originally Posted by Bob # 1