Cranking Battery vs. Deep Cycle Lithium Battery

2,827 Published by BSLBATT May 27,2020

To most people, a battery is a battery. While marine and auto batteries usually look similar, the internal components of these batteries — as well as their design and intended purpose — are often very different.

Marine batteries come in three types: starting (or cranking) batteries, dual-purpose batteries, and deep cycle Lithium batteries. In this guide, we’re going to explain the differences between these battery types, with a specific focus on deep cycle batteries.

BSLBATT deep cycle lithium batteries

Starting vs. Dual Purpose vs. Deep Cycle lithium battery

Before we get into the mechanics of deep cycle batteries, it’s important to explain how they differ from starting and dual-purpose batteries.

Starting batteries, which are also known as cranking batteries, are designed to discharge a large amount of energy for a short period. This makes them ideal for starting engines, such as an automotive engine or an inboard or outboard marine engine.

Instead of discharging a large amount of energy for a short period, deep cycle batteries are designed to discharge a small amount of energy over a long period, often until most of the battery’s capacity has been discharged.

One way to think of this difference is by visualizing a sprinter and a marathon runner. A starting battery performs like the sprinter, delivering lots of power before running out of breath. The deep cycle battery is the marathon runner, offering less speed but much greater endurance.

Dual-purpose batteries are capable of starting engines and deep cycling, although they usually can’t match the performance of a dedicated deep cycle battery.

How deep cycle batteries work

The biggest difference between a deep cycle battery and a typical starter battery is the amount of energy it discharges and the way in which the energy is discharged.

Deep cycle batteries are designed specifically to discharge a large percentage of their capacity, in a process called “deep discharge.” Starter batteries, on the other hand, are only designed to discharge a small amount of energy at any time.

When a starter battery is deeply discharged, it can suffer damage that affects the battery’s total lifespan and ability to charge to capacity.

Most deep cycle batteries are built to discharge up to 75% of their capacity without suffering any damage. The “safe” amount of energy to discharge varies from manufacturer to manufacturer — some batteries are designed for a 45% discharge, while others can discharge 75% or more of their total energy capacity without any negative effects on long-term performance.

Uses of deep-cycle Lithium batteries

Because deep cycle lithium batteries are designed to discharge a small amount of energy over a longer period than starter batteries, they’re most commonly used for appliances and motors that require a steady, consistent supply of energy.

For example, a trolling motor — which uses electricity to power a propellor — works best using a deep cycle battery. For larger, more powerful trolling motors, several deep cycle batteries can be connected in series and used as a power source.

Deep cycle lithium batteries are also used to power small vehicles, such as electrical wheelchairs, golf carts, and forklifts. Many of the instruments and navigational devices inside a boat draw energy from a deep cycle battery when the inboard or outboard motor is inactive.

Finally, deep cycle lithium batteries — especially larger batteries — are often used as storage batteries for solar and other renewable energy systems.

Whether you’re a commercial fisherman, captain, compete in fishing tournaments regularly, or simply just enjoy going out to the sandbar on the weekends, you probably realize that the number one problem when boating is having a reliable battery.

For years, lead-acid and AGM batteries have dominated the marine industry because they’re readily available, cheap, and easily replaceable. The issue is that these batteries don’t hold a charge for very long, are prone to acid leakage, and generally weigh down water vessels a considerable amount. The good news is, lithium batteries not only maintain their charge for longer, but if you choose Ionic they’re also Bluetooth equipped. With a few taps on your cell phone, you’ll know whether your batteries are good to go or not. It’s that easy.

Our Lithium Deep Cycle Marine Batteries provide a longer battery life with less recharging and no maintenance. No more lake days spent at home, less stress, more time on the water.

deep cycle lithium batteries for solar

Lithium Deep Cycle Marine Battery Benefits For Your Boat

● Faster charging

● Longer Lasting

● Up to 70% Lighter

● Maintenance Free

● Bluetooth Monitoring

● Drop-In Replacement

● Non-Toxic

● Run in Parallel

● Lower Discharge Rate

Find The Perfect Battery For Your Needs

Check out our common questions and answers here, or Ask Our Experts Now Need some help determining exactly which batteries you need for your bass boat, RV, Golf cart, or other application? Let our lithium battery experts help you find the right battery.

Leave a Comment
Your email address will not be published. Required fields are marked *

Solar Street Lamp Lithium Battery | Lithium Iron Phosphate Battery Manufacturer


Do you like ? 2,546

Read more

One 36V Battery Or Three 12V Batteries? The Pros And Cons | BSLBATT

Years ago, when an application required 36 volts, the best option was to connect three 12V bat...

Do you like ? 3,270

Read more

48V Lithium-ion battery for hybrid power solutions for telecommunications and off-site sites

48V Lithium-Ion Battery for Hybrid Power Solutions of Telecoms & Off-Grid Sites BSLBATT’s...

Do you like ? 2,335

Read more

BSLBATT B-LFP12-100-LT Battery System Provides Reliable Power For Cold Areas In North Dakota

What is the Best Battery for Cold Weather? In order to make the most of the COVID-19 pandemic...

Do you like ? 1,916

Read more

BSLBATT Lithium is the new name: A high-performance energy storage systems tailored to your needs

BSLBATT Lithium launches renewable energy storage solution Economic growth and growing popula...

Do you like ? 1,881

Read more

Lithium-Ion Technology Poised to Change Cleaning Industry

Lithium Batteries for Floor Machines Cleaning industry professionals are always on new techno...

Do you like ? 2,542

Read more

Join BSLBATT’s Golf Cart Dealer Program

What Sets BSLBATT aside from the Competition? Customer Support and Superior Service. China H...

Do you like ? 2,551

Read more

BSLBATT Unveils New Lithium Forklift Battery Complete With Game-Changing Technology

For “BSLBATT” (Best Solution Lithium Battery), the world leader in lithium batter...

Do you like ? 2,602

Read more