Best Lithium Batteries for Off-grid Solar

As the price of energy storage battery decreases, it is the great opportunity to install the battery for your solar system. Among all kinds of energy storage batteries, lithium batteries are the first choice. In this blog post, I will share with you how to choose the best lithium battery for your off grid solar, including

How to Choose the Right Size and Voltage of Lithium Battery for Your Off-grid Solar System

Are you are living in the area which is far away utility grid or with unstable electricity power, such as you lives or travel in a van, RV or motorhome? If yes, definitely you need a solar battery as energy storage solution.

Determine the Costs of Lithium Batteries

To choose the best lithium batteries, the first thing you need to think about is the price.

The cheapest lead acid battery can cost around $150, while lithium iron batteries can cost upwards of $2,000. However, don’t let that sticker shock scare you away. You need to consider the overall lifetime costs when deciding on a battery. For example, you will have to replace lead acid batteries before you will need to replace a lithium iron battery, so it’s important to take into account the overall lifetime costs.

Choose Right Size and Voltage of LIthium Batteries

Secondly, Choosing the right size and voltage of lithium battery for your off-grid solar system as followings:

Load demand: You need to sum up the power consumption of all your appliances and devices

Depth of discharge(DOD): The DOD affects the cycle life of your battery, which is the number of times you can charge and discharge your battery before it reaches 80% of its original capacity. The higher the DOD, the shorter the cycle life. Lithium batteries have a high DOD, typically around 80-90%, which means you can use more of their capacity without compromising their lifespan.

Ambient temperature: The ambient temperature affects the performance and lifespan of your battery, as extreme temperatures can cause overheating, overcooling, or thermal runaway. Lithium batteries have a wide temperature range, typically between -20°C and 60°C, which means they can operate well in most climates. However, you still need to protect your battery from direct sunlight, rain, snow, and frost.

To calculate the size and voltage of your lithium battery, you can use the following formula:

Battery capacity (Ah) = (Load demand (Wh/day) x Autonomy (days)) / (Battery voltage (V) x DoD)

Best Lithium Batteries for Off-grid Solar

svc Off-grid solar kits with lithium batteries

SVC Energy is a solar company manufacturing solar lithium batteries for home energy storage. Capacity range from 5kWh~15kWh.

SVC High Voltage Lithium Battery

svc lithium batteries

SVC Solar Lithium Battery 12V

svc lithium batteries 12V

SVC Solar Lithium Battery 24V/48V

svc lithium batteries wall mount

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