How many batteries can 400 watts of PV handle?

[neomulemi6]

Assuming I discharge them to 50% every night, and get good sun most days. Thanks.

[Logan005]

depends your location, how you angle your panels, the type of battery you chose. You will need heavy gage wire for low 12 volt system.

[neomulemi6]

I know all that, just looking for a ballpark.

[Logan005]

If your panels are 2X 200 watt 60 cell panels, I would go with wiring them in series into a quality MPPT controller and charge two 100 AH batteries in series. would give you 50 AH a day minus losses. or 100AH @ 12volts. if panels are optimally angled and you manage your daytime and night load, should give you most of charge. You should also hit them with a generator or stiff AC smart charger weekly. or even daily depending system performance and weather,

[jflorey2]

Assuming I discharge them to 50% every night, and get good sun most days. Thanks.

At 12 volts? About 260 amp-hours, assuming a C/10 rate, good sun, a good mount and an MPPT controller.

[SunEagle]

I know all that, just looking for a ballpark.

How about Shea Stadium in NY?

Sorry I couldn't resist.