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I currently have 2 x BYD Battery-box pro 13.8 and a Victron Quattro 48/10k. I would like to add more storage capacity but those batteries are no longer made and are hard to find. Is it possible to mix batteries albeit from the same manufacturer? Eg BYD Battery-Box Premium HVM 13.8?
I would initially say no. The HVM is a high Voltage model (256V) which is definitely not compatible with the Quattro.
I think this is more of a question for you to ask BYD if there is anything current that is backwards compatible with your existing arrangement.
