Whether you can expand your battery capacity later is entirely dependent on the type of battery system you have.
In most cases the solar component of your system is easily expanded (solar panels and solar PV inverters) It’s the battery capacity that can sometimes be tricky or expensive to expand.

Systems like the BYD lithium-iron battery are extremely easy to expand as they are capable of up to 32 units in parallel (441.6kWh). However, many off-grid systems could be difficult to expand on in say -five years’ time, so it is usually best to go for the estimated future battery capacity and lock it in now.

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