Battery charging

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nicklee

New member
I am curious to know what most of you guys with boats do for battery charging when there is little to no floor space for solar panels...
 
nicklee":29x96kyf said:
I am curious to know what most of you guys with boats do for battery charging when there is little to no floor space for solar panels...
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If I am not cruising, I just run the engine at about 1000 rpm for awhile. I have a battery monitor that lets me see when to stop.
 
nicklee":zzodif5z said:
I am curious to know what most of you guys with boats do for battery charging when there is little to no floor space for solar panels...
Click to expand...

We use a Renogy 100 watt flexible solar panel. We have been using ours for about 5 years and are quite happy with it. It is lightweight and stores easily in the cabin when not in use. It can be used in a variety of locations and often we hang it vertically to better face the sun.
 
A lot depends on the outboard motor, and what type of battery you have. Most of the 150's will have 44 to 50 amps output. Older 90's and that platform only17 amps,

I have found that running the 150 for about 5 hours a day brings the batteries to about 85% State of Charge. Difficult to get outboard powered boat batteries higher than that. With the LiFePO4 200 amp hr bank, it would keep up with the refer/freezer, and most of the time induction burner cooking and a little microwave use,

If that does not keep it up, then I use a Honda generator or mains power. The Li battery charges at up to 80 amps with the Victron Multiplus. 2000, 80, 50 (120 volt boost)

The FLA batteries are charged with a NOCO "genius" mains charger at about 20 amps max.
 
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