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LFP batteries typically have longer lifespans and increased thermal stability (aka less heat and fire risk). They also do not use nickel or cobalt, which can be toxic and dangerous to mine. Learn more about the different types of home battery storage here. Batteries can also be categorized as backup versus consumption-only.
Existing solar systems typically have solar inverters, which change the DC power produced by panels to AC power that can be consumed in your home or exported onto the grid. But if you want to store that AC power in a battery, it needs to be inverted again to DC power.
Solar battery cost in 2026 can range from $1,000 to $2,000 per kilowatt-hour (kWh) of storage capacity, before incentives are applied. So, for a 10 kWh battery (considered average size), prices can range from $10,000 to $20,000 fully installed. Battery storage pricing can vary quite a bit based on the brand, model, and its capabilities.