Choosing the Right Battery for Your Solar System

TORONTO, ON / ACCESSWIRE / June 30, 2023 / Solar power is on trend as a free and sustainable energy source. You may have already installed a solar system on your roof and are benefiting from it. But merely a solar system isn't a sure card. What if there's a long power outage occurring just on rainy days?

Bluetti Power Inc., Friday, June 30, 2023, Press release picture
Bluetti Power Inc., Friday, June 30, 2023, Press release picture

Invest in a battery, all is settled.

Why You Need a Battery for Your Solar System

Without an efficient battery, excess solar power is wasted. And you don't have enough power when the sun isn't shining.

Storing extra solar energy in batteries, however, allows you to use it later at any time, reducing your dependence on the grid and saving on utility bills. Some batteries support grid connection and allow you to sell the excess energy back to the grid, so you can even earn money from your solar system.

Common Types of Batteries for Solar Systems

Let's explore some of the mainstream battery types and their features:

Lead-Acid Batteries

Lead-acid batteries have been in use for a long time and are relatively affordable. They offer high surge currents and have a relatively high energy density. Yet, they have a shorter lifespan and require regular maintenance.

Nickel-Cadmium Batteries

Nickel-cadmium batteries are known for their durability and ability to withstand extreme temperatures. They have a long lifespan and high efficiency of charge/discharge. However, they are expensive and contain toxic materials.

Lithium-Ion Batteries

Lithium-ion batteries are widely used in rechargeable electronics and electric vehicles. They are lightweight, require minimal maintenance, and offer high energy density. Two main lithium-ion types, lithium nickel manganese cobalt oxide (NMC) and lithium iron phosphate (LFP), are most popular for solar energy storage.
The NMC batteries are relatively lighter and have a higher energy density. The LFP batteries deliver nearly five times as many charge cycles as NMC batteries and are less prone to catch fire.

Bluetti Power Inc., Friday, June 30, 2023, Press release picture
Bluetti Power Inc., Friday, June 30, 2023, Press release picture

Why Choose a LiFePO4 Battery?

Clearly, LiFePO4 batteries stand out as a favorable option for solar systems; they are safer, more stable, and have an impressive lifespan of up to 3,500 cycles, making them a long-term investment for solar system owners.

Some of the Top LiFePO4 Battery Solutions

There are many batteries on the market and BLUETTI emerges as a leading provider of portable, home and commercial battery solutions. In addition to the inherent benefits of LiFePO4 batteries, BLUETTI battery systems offer some outstanding features.

Self-Heating Function

Certain BLUETTI products, such as the B300S additional battery for the AC500, are equipped with temperature sensors that enable self-heating in extremely cold weather. This function ensures the entire system operates smoothly, even in harsh winter conditions with temperatures as low as -20° C (-4° F).