Mini Split Air Conditioner / Heat pump

Walkdog wrote:
I'm looking at Amps and dealing with battery. Mini split says say 10 amp. Is that 10 amh?

First you need to know what voltage the mini-split operates at, it is likely 240v AC. If it is pulling 10 amps as you say that is 2,400 watts. Your inverter will likely only be 90% efficient so you will actually be drawing 2,667 watts from the batteries.You said you would be running this from an 800 AH 24 v battery, correct? That battery has a total capacity of 19,200 watt/hours. So, that bank would run this unit for 7 hours before being totally depleted. However, most battery AH ratings are given at a 20 hour rate. Capacity drops as you pull more current. If it's 800 AH at the 20 hour rate it may only be 500 at a 10 hour rate, it might only be 400 AH at a 2 hour rate; you'll have to look at the battery specifications. So, now it will only run your mini split for about 4.5 hours.
Most areas of the country receive enough sunlight on an average day to get the equivalent of full output from a solar array for about 4 hours. So, if you totally depleted a 19,200 watt/hour battery bank and needed to charge it back up in one day it would take about 4,800 watts of solar panels.