Lithium Deep Cycle Battery Guidance

If you are looking for the battery for your RV, boat off-grid applications or solar setup, the type of deep cycle battery suits you most. Deep cycle battery is a battery designed to be regularly deeply discharged using most of its capacity. There are two types of rechargeable deep cycle battery: the traditional lead-acid and lithium-ion deep cycle battery.

Lithium Deep Cycle Battery

A lithium deep cycle battery is a type of battery that uses lithium-ion technology to provide sustained power over a long period of time and can be deeply discharged and recharged repeatedly, according to Wikipedia. Lithium deep cycle batteries have several advantages over other types of deep cycle batteries, such as lead-acid batteries. Some of these advantages are:

Lithium-ion deep cycle batteries have a longer lifespan and a higher cycle life, which means they can last longer and provide more power cycles before needing to be replaced.

Lithium-ion deep cycle batteries have a higher energy density and a lower weight, which means they can store more energy in a smaller and lighter package, making them ideal for applications where space and weight are important factors.

They have a lower self-discharge rate and a better performance in cold temperatures, which means they can retain their charge longer and work better in harsh environments.

They are maintenance-free and do not require water refills or equalization, which means they are easier and safer to use.

Lithium deep cycle batteries are often used in applications that require regular deep cycles, such as marine, RV, solar, and off-grid power system.

deep cycle lithium battery svc

Are All Lithium Batteries Deep Cycle?

Lithium batteries are a broad category of batteries that use lithium-ion technology to store and deliver energy. Lithium batteries can have different chemistries, such as lithium iron phosphate (LiFePO4), lithium cobalt oxide (LiCoO2), lithium manganese oxide (LiMn2O4), and lithium nickel manganese cobalt oxide (LiNiMnCoO2). Lithium iron phosphate(LFP) battery is one of the common type of deep cycle lithium battery. This lithium iron deep cycle battery can provide sustained power over a long period of time and can be deeply discharged and recharged repeatedly.

One way to tell if a lithium battery is deep cycle or not is to check its chemistry. For example, the lithium battery with LiFePO4 normally is designed as deep cycle battery, which can be deeply discharge and recharge repeatedly. Other lithium batteries use power cells that are designed to provide short bursts of high power, such as starting an engine or a generator. These batteries are not deep cycle, and they can only withstand shallow discharges and recharges. These batteries are often used in applications that require high cranking power, such as automotive, motorcycle, and lawn mower batteries. One of the most common types of non-deep cycle lithium batteries is the lithium cobalt oxide (LiCoO2) battery.

AGM vs. Lithium Deep Cycle Battery

Costs: Lithium deep cycle batteries have higher costs than other rechargeable batteries.

Battery Weight and Size: Lithium ion deep cycle battery is lighter than AGM battery, which can save space and improve fuel efficiency in mobile applications.

Depth of Discharge: Lithium ion deep cycle batteries have an improved functionality (compared to their AGM and flooded alternative options). These batteries can be discharged to a higher level of safety. Lithium batteries can be safely discharged to a 100% Depth Of Discharge (DOD) (@10.5v); this provides more useable amps vs. a top 50% DOD for an AGM to maintain its cycle life.

Charge Speed: Lithium ion deep cycle battery has a faster recharge speed compared to other battery technologies. A 100Ah Lithium battery can be completely charged with a 30 Amp charger in just over 3 hours while a 100Ah AGM battery will take 10+ hours. That makes lithium ion deep cycle battery greatly benefits for solar power system because every amp that produced by solar panels go directly into the battery.

Related: AGM Deep Cycle Battery Guide

In Conclusion

Deep cycle batteries is the best energy storage especially for solar system. SVC is the manufacturer offering solar deep cycle batteries. Depending on the various needs, we have numerous series of deep cycle batteries. For example,

SVC High Voltage Lithium Battery – best Lithium Deep Cycle Batteries for Home Solar

Paired with SIH three phase inverter for hybrid solar system

Voltage: 48V ~ 384V

DoD&Lifespan: >6000. 25°C, 0.5C 85%DOD

SVC LiFePO4 Lithium Battery – Deep cycle battery for RV, Golf Cart and Off-grid System

Paired with VMH off-grid inverter for off-grid system

Voltage: 12V

DoD&Lifespan: >2000 Cycles @ 0.5C Charge/Discharge at 100%DOD,End of Life 70% Capacity

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