Water Irrigation Pump

[webnso]

I have two 100 watt solar panels and a 2000 watt Whistler Inverter. I need to power a 1/2 HP AC motor for about 30 minutes a day from a solar charged battery. I was wondering if a 30 amp solar charger was adequate along with a single 100ah gel or AGM battery? Any thoughts or recommendations? Here is the solar charger i was looking at:
Temank EPEVER 30A MPPT Charge Controller 12V/24V Auto, 30 amp Solar Charge Controller MPPT Max 150V PV Input Negative Grounded Solar Regulator for Gel Sealed Flooded Battery

 

[webnso]

and this is the battery im looking at, items will sit in a shed that will get fairly warm in the summer.
Weize 12V 100AH Deep Cycle AGM SLA VRLA Battery for Solar System RV Camping Trolling Motor, in Series 24V 36V 48V

 

[MisterSandals]

Well, working the numbers, 1/2hp is 367watts.

So .5 hours a days is 184 watt hours. At 12v, that is 15 amp hours.

2x 100w panels harvesting sun for 5 hours is 1000 watt hours (assuming 100% efficiency, incorrectly of course should be more like 80%, 800wh).

On paper it looks like it should work. Your inverter hopefully is a pure sine wave type, otherwise the pump will run much less efficiently. The surge current to start the motor may require all of the 2000w capability, maybe more.

 

[webnso]

Thanks Mister Sandals, I don't think its a pure sine wave, it was 149.00 back in 2013, still new, rarely used at all.

• Mountable. Features 3 AC Outlets and 1 USB Port, along with Digital Battery Volt/Watt Meter (Monitors input volts and output watts).
• Thermostat-controlled Cooling Fan.
• High Surge / Ground Fault Sensing / Overload Indicator / Remote Operation Jack.
• 2000 Watts Continuous power - 4000 Watts Surge Capacity (Peak Power)
• Mountable. Features 3 AC Outlets and 1 USB Port, along with Digital Battery Volt/Watt Meter (Monitors input volts and output watts).
• Thermostat-controlled Cooling Fan.
• High Surge / Ground Fault Sensing / Overload Indicator / Remote Operation Jack.
• For safety, features five separate points of Electronic Circuit Protection.

 

[MisterSandals]

Give it a go and see if its happy enough for everyday use. You could probably use your car battery for a test. Keep an eye on the temperature of the motor, this will be the issue other than any roughness (or failure to start pumping).

 

[webnso]

im also considering this battery instead, reviews for previous battery are saying its really a 50ah battery, which i believe is still plenty for my application:

 

[WillyP]

Why can't you jus buy a pump that will run off your panels? Pumps are a lot cheaper than all the stuff to convert your current to run a ac pump.

 

[webnso]

Thanks, I will look into that and see how many panels i would need or how many watts. I found this pump online.