I am building an RV electrical system and using a Hybrid mini split A/C 12k btu, my RV has a 96VDC 280A battery bank, can I use it to power the DC input of the A/C directly? I don't want to use an inverter because it is quite noisy. Thanks.
Nah, you can normally not power straight off-the-bat that 12k BTU hybrid mini-Split with your 96 V battery bank. Most of the hybrid solar A/C units are configured to take the DC input of a PV panel, but not directly connected to a hard battery. Although the voltages may coincide, the electronics is not configured to deal with battery idiosyncrasies directly.