Dirtman
Former Middleweight Moss Fighting Champion
- Joined
- May 28, 2018
- Messages
- 19,304
- Reaction score
- 13,326
- Points
- 113
- Location
- 41N 75W
- Vehicle Year
- 2009
- Engine Type
- 2.3 (4 Cylinder)
- Transmission
- Automatic
- 2WD / 4WD
- 2WD
- Total Lift
- It's up there.
- Total Drop
- It's down there.
- Tire Size
- Round.
- My credo
- I poop in the furnace.
Dumb question.... I hooked up a series of solar panels to my shed. In series not parallel so volts are the same but amps is increased. Using it for charging 12 volt batteries and gizmos.
I understand how to measure the amp draw of a device on a power source (aka measuring headlight draw on a battery). But how do I measure the maximum amp output of my solar panel array? I need to know so I know what size controller to buy. Each panel says it has a maximum of 3amps at 17vdc. But im putting out about 21vdc on a cloudy day. Do i just trust the specs on the panels or is there a true way to measure the amp output?
I understand how to measure the amp draw of a device on a power source (aka measuring headlight draw on a battery). But how do I measure the maximum amp output of my solar panel array? I need to know so I know what size controller to buy. Each panel says it has a maximum of 3amps at 17vdc. But im putting out about 21vdc on a cloudy day. Do i just trust the specs on the panels or is there a true way to measure the amp output?