I need a solar panel to charge my battery while I'm trolling and have a fish finder and plotter on. How many watt panel do I need?
513095
I would have to know all about your electrical system to answer that question, (battery amp hours, equipment draw, hours the equipment will be used, how often your main engine alternator would run, alternator output, etc. etc.) unless your boat has room for many large panels, you will not be able to recharge you battery fast enough to keep up. Your best bet is to add another large deep cycle battery. Solar panels recharge your battery/batteries when your boat is sitting and your equipment is not being used, (over a long period of time).
513096
First you need to see what you total usage is, how much does each unit use?add them up then look a solar unit with charger regulator. note the unit will be only equal during prime daylight to about 80% full sun.
352793
Based on my experience, I think you would need two units. And you would need a maximum power point type of solar battery charger as well. I use two units in parallel to feed a maximum power point type of grid tie inverter and the maximum power that I get, when the sunlight is optimal, is 150 watts. And that is usually less because the sunlight is not always optimal.
1523593
I purchased this after reading the other responses and can confirm. I'm using a single Solarworld 250w panel (24v) with two 6v Sun eXtender batteries (wired for 12v). Works great.
1672148
These are peel and stick panels so your won't need a rack. You will need to look for "mc4" solar cable (25' run-get one 50' cable (cut it in half) with one male and one female connector and a charge controller of it's for 1 panel. Its recommended to get a combiner box and higher rated charge controller for more panels. Hope that helps.
1008811
Hello I hope which I hope you you need 10gauge wire you need a shunt a amp meter for you know how many amps you are receiving from your solar panel it could be 100w or 50w.the wires coming out of the path into the charge controller must be 12 V have the battery don't forget your user have relayed or fuses him all the connections and you should be good if you could go to youtube on your computer and you will learn everything you need to know I hope this helps you and thank you for asking my pleasure to help you
1605298
First, I bought one to keep a deep cycle battery charged up. Second, I would not use the 160 watt panels as they would not be cost effective (you would probably need lots).Instead look at the 250-300watt panels. As to the #, it depends on how much power you consume, and how much of that you want to generate, ie, 5-10KWH per day.
2181667
It is best to use a solar regulator (or solar charge controller). 3Amp or greater charge controller for 1 x 45Watt panel. You can find lots of inexpensive ones on Amazon. However, if you are just using it for a quick boost charge, you can hook it up directly to the battery. But, if you connect directly, you must monitor it to make sure it doesn't overcharge (cook) the battery. And, never leave it hooked directly (without regulator/controller) to the battery at night, because the battery will discharge into the solar panel.
752587
Watts divided by volts equals amps. 100 watts divided by 12 volts equals 8 amps per panel. The morningStar is a 30 amp charge controller. 30 amps divided by 8 amps equals 3.75 100 Watt panels per charge controller.
1332100
The charge control can handle up to 7A. Your 30 watt panel puts out ~1.68A at high noon. You should be fine with one charge controller charging two or more batteries and it would require more charge time. Just make sure you hook up your batteries correctly. Personally and for convenience I would much prefer to get two charge controller with two solar panels for the two batteries so that I could avoid having to move and or reconnect the batteries. A larger solar panel can would benefit you quite a bit if you need to drawn power from the battery each night. Hope you are using deep cycle batteries.
1508034
Charger? I have 245 watt of panels to a BZ MPPT 250 solar Controller, to three batteries in series.To inverter.
1636544
300 watts of solar panels to charge the batteries and run the pump. 4 group 24 deep cycle should due and a 30 amp charger. also there have been problems with pump and i have one go out after just three months. so you might look at another pump
565615
I have 10 Trojan T-105 6Volt 225 AH Batteries, if you just buy 1kw solar panels then I suggest you use 6 6volts batteries or three 12v batteries
2108537
They produce .5 volts each and you will string 36 cells together for an 18 volt panel which is used to charge 12 volt batteries. This should give you a 65 watt panel. Use sylgard 184 to encapsulate
917556
the link that you sent me is for the mounting kit. there are several panels. they are all 12 volt and range from 7 to 100 watt.I use the 100 watt panel to charge 2 12 volt batteries in a small camper. It works well.
350741
You will not get more amps than the panel can produce. Watts= Volts X Amps. A 15 Watt panel @13.5 Volts will charge at 1.1 amps.
933679
you will need a 10 amp charge controller for one of these or a 20 amp charge controller for two.The charge controller will have adjustable settings "you set"I suggest a renogy 30 amp pwm controller for three reasons it will give you room to add more panels its cheap under $35 and its all you would need to accomplish battery charging in 12 or 24 volt mode,I hope this helps
752588
I have two 275 watt panels hooked to mine. I believe I have room to add another. It is a 30 amp charge controller. B