I'm wondering if I bought undersized cables to link my batteries to the Multiplus (12 | 3000 | 120 - 50 | 120V.)
Before I ordered cables, I looked at an AWG to mm2 table online and assumed it was accurate. But no. It says AWG 1 == 50 mm2.
Per tables I looked at after ordering cables, (e.g. this one) AWG 1 is actually 42.4 mm2. The Multiplus manual recommends 50 mm2 (x2) and I've got 42.4 mm2 (x2).
Each cable is 24" from Lynx distributor to the Multi.
The cable vendor's web page describes the cable I bought as such:
- 105C temperature rating
- Outside Diameter of stranding: 0.3540 inches (nominal)
- Rated to handle 245 amps continuous outside of engine space
- 836 strands of copper (30 AWG ea strand, rope lay Class K)
I'm starting with 2 Battle Born 100AH batteries (plan to add a 3rd if needed) and I've got a 200A mega fuse on each AWG 1 cable to the inverter. Am I okay? If okay with 2 batteries, still okay with 3 batteries?
This is a 30A RV and I won't be trying to run the air conditioner off grid. (Unless I attach my small Honda generator to shore power inlet, and then maybe I'll try air con if it's really hot.) The Honda spec says: 120V 2200W max. (18.3A), 1800W rated (15A).