Watt Hour Capacity of 27 Deep Cycle battery

Homeless by Choice wrote:

If so, how many Watt Hours on a brand new fully charged battery are useable so that the battery isn’t drawn below 50% State of Charge?

half of em if used at the same rate of discharge as they were determined.
The specs of that batt show 100% discharge can be achieved in 18.9 hrs at a constant 5 amp discharge or 5.5 hrs @ 15 amp. Call the battery ~ 1Kwh so 1/2 a battery would be 500 watt-hr.

Same as a Costco g27 with a RC of 160!


I like to use this web/map (pick avg, Aug, horizontal flat, view map) to see how much energy/square meter/day, same rating as a panel!!

Use this solar app for those higher lats, north of 54!!
http://solarelectricityhandbook.com/solar-irradiance.html