Can I have 2 solar chargers for a 300watts solar panel
1274283
research mppt chargers they receive higher voltages lower amps which is then converted to lower voltage higher amps for better charging efficiency. it all depends on what you goal is. know what you want to do and do lots of research it is a lot cheaper in the end.
1274284
i do not think that it would profit you to do so, in theory you would be 1/2ing the capability of the charger. i can not see the advantage of this.
1852846
Absolutely. Just make sure the solar charge controller is 12VDC and rated appropriately for the output of the solar panels.
1332098
I don't think you can connect 1 solar panel to multiple controllers effectively at the same time. I would rotate the batteries as needed for charging; only one controller would be needed.
220167
If you have a total of 600W then yes, you just need to connect up the panels in series so their combined voltage is OVER 48V but under 150V. As long as the solar panels combined voltage falls between these range then yes it will charge it no problems.
1639193
Yes, I use two in parallel with a twelve volt hundred watt solar panel for power in my camper. I really like them and will be ordering more.
1074720
You don't need another 30 amp controller. 2 more panels would only put you at 28 amps, and I've never seen a panel that puts out its advertised amperage anyway.
99421
Correct. You do not need a seperate charge controller unless you are putting more than 15watts to the battery. That's three panels! It says the same thing in the owners manual.Correction: I see this is for the 7watt panel. In this case that would be TWO panels total. I have the 5watt panels, so that is where the math came from. The 15watt limit before needing the charge controller still applies for all panels.
1500655
Yes you would plug you solar panels into these branch connectors if you plan to put two 12 Volt solar panels in parallel. If you plan only a single 12 volt solar panel, you would not need the branch connectors. Do an Amazon search for solar panel wiring and you will find cable pairs with the MC4 connectors to whatever lengths you need.
1052286
The plug-in charger only puts out 2 amps. If your solar panel USB port has similar output there should not be a problem.
1508034
Charger? I have 245 watt of panels to a BZ MPPT 250 solar Controller, to three batteries in series.To inverter.
501546
not sure. never tried it. if the amperage and volt match from your solar charger, I don't see why not
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.
1680255
I my self would get a bigger charge controller at least 45 to 50 amps becouse you will like the dms solar pannels.
412102
Yes, that's true ~. 2x30watt panels = 60 watts going to your controller. Good luck & have fun capturing the Sun. :-)
89221
Yes, you could replace this panel with another of higher wattage, as long as the open circuit and loaded voltage of the new panel is similar to the ratings of the 30W panel. The charge time will then only be limited by the built-in charger. The 30W panel does not have a blocking diode that I can find, so you cannot just parallel two panels. Putting two panels in series would also not be recommended as it would likely damage the charger.
993787
I would not recommend it unless you are using as a system to charge for several SUNNY days after each use. This is a 75W charger. You could look at potentially buying two chargers, just keep in mind these are solar, so you are dependent on the sun, but it did work great for my boat battery. If you are driving a lot, you might want to look into buying an alternator or if your boat is not designed for one, you might want to consider a portable generator. It really depends on how you plan to use the power source.
1539106
i would just to be safe says it needs 500w to run one cant say you need another 500w for the 2nd one but having the extra watts wouldnt hurt you