Lithium Iron Phosphate (LiFePO4) batteries continue to dominate the battery storage arena in 2024 thanks to their high energy density, compact size, and long cycle life. You’ll find these batteries in a wide range of applications, ranging from solar batteries for off-grid systems to long-range electric vehicles.
Every battery on our list is either lithium-ion or lithium iron phosphate (LFP). While similar, the differences are noteworthy. 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.
Utilised in lithium-ion batteries, the most common type of battery for solar storage. The cost of lithium is influenced by its growing demand and limited supply. Prices can be volatile. Used in the cathode of lithium-ion batteries.
LiFePo4 batteries are the safest type of lithium battery. They are sealed in an airtight aluminum case, specifically designed to withstand temperature, pressure variations, punctures, and impacts. Therefore, they are maintenance-free, and in addition, they all include a BMS (battery management system).
Let’s calculate the levelized cost of storage (LCOS) for using Li Time’s 100Ah, 12V LiFePO4 battery. Note to our readers: If you’d like to view more quality batteries like the one mentioned above, check out our article discussing the 7 best storage batteries for solar panels in 2024. The current retail price for this battery is $309.99.
Lithium-ion batteries are typically more expensive, but they're also more efficient and have longer lifespans. The more energy a battery can store (measured in kilowatt-hours or kWh), the more it costs. Higher-capacity batteries are more expensive but can provide more energy.