The Helix 5 uses .615 amps, approximately (7.6 watts) at 12.5 volts. Providing you have a good 7 AH battery and the ambient temperature is 80 deg you should get about 9 hrs of run time before your battery drains to aprox 40% (11.9 volts)
This will all vary some as your battery ages and or the ambient temp drops. For each 10 dregs drop in temp starting at 70 deg f you can expect aprox .1 volt drop.
You can extend run time if you're fishing in low light conditions and have your screen brightness turned down, but in daytime you will usually have it full bright.
I usually run a 14 AH / 12V AMG Deep cycle, aprox $35 from atbatt.com.
This will allow for some fishing if you're out a second day.
Edited by pelican (09/13/15 08:40 AM)
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