I believe I may know the answer to this question, however I wanted to check it against the experience of other cold, open water fisherman.
Do you find your deep cycle battery used to power your trolling motor runs down on charge (i.e.:voltage) a bit quicker when fishing at low temperatures such as 35 degrees F.
Thx,
It takes more power to move a cold motor 
A cold battery has less voltage than does a warm battery.
A cold battery has less voltage than does a warm battery.
a battery may have less amps when is cold. but not less volts!
<div class=”d4p-bbt-quote-title”>gixxer01 wrote:</div>
A cold battery has less voltage than does a warm battery.a battery may have less amps when is cold. but not less volts!
Correct, this is why you see a CAxxx (cranking amps) and a CCAxxx (cold cranking amps) on a battery label.
Temp takes amps, amps provide time in a manor of speaking.
Thanks gixxer, this is some of the best reference material I have read!
How do I account for temperature when taking my voltage readings?
Temperature will affect voltage readings. As temperature increases, voltage decreases. Conversely, as temperature decreases, voltage increases. Here are the relationships Trojan recommends using:
For every 10 degrees below 80oF, add .028 volt per cell to the charger voltage setting. From Trojan battery
According to this you will have more voltage when is colder out?!
Also this is talking about charge volts!
Most of time when using trolling batteries you are not charging.
I don’t believe the voltage of a fully charged battery changes all that much as to whether it’s cold out or warm out, say nominal terminal voltage of 12.5 +/- 0.3 Vdc. It’s the batteries ability to store charge columbs = (amps/sec) that goes down a bit in cold. Of course as the battery is drained of charge the terminal voltage will go down as well. This is why the CCA “cold cranking amps” quantity is always a lower number than the CA “cranking amps”.
The 1st post by Trumar is also true. A DC motor will require a bit more current to run at the same trust level as a warm one.
Thanks for the input,
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