If you want to find the best dual-purpose marine battery possible, you will want to delve a little bit deeper on what makes a dual-purpose different from a starter battery and a deep cycle battery—plus, some other factors you may forget to consider (read all about it here!).

What Does Dual Purpose Mean And What Is The Best Dual Purpose Marine Battery For The Money?

Marine batteries usually are in demand for the specific advantage factors they have that carry over to different—several—functions in bodies of water whether river, sea or an entire ocean.

More often than not, these marine batteries cater to different kinds of boats that come in both small, medium or large size scales with various energy requirements.

A typical marine battery will usually be something that has these two qualities:

1. Starter or cranking function


2. Trolling function

The former relates to how fast currents of energy (in the form of amperes) can be in distribution to an engine, and one that can be in utility even if the battery is “dead.”

For that reason, these “currents” that starter-cranking focus batteries produce often go by the label of ‘cold cranks,’ referring to the ability to start up an engine even amid frigid weather.

The latter relates to how much currents can be in delivery to the trolling motor of the boat once they are in the body of water after starting, often distributing energy to lots of applications like a boat’s searchlights, radio or any other device in connection to the engine.

For this reason, these “currents” that trolling focus batterie produce often go by the label of ‘deep cycling,’ referring to the ability to cycle an engine through several sessions on the water before going low on reserves.

A battery—marine or otherwise—that has components of both usually goes by the term of “dual-purpose.”

Dual purpose batteries are not exactly the most noteworthy when it comes to the pure starter or pure trolling, but if you are particularly starting on running and operating your marine activities, this would be a great for a novice and suitable for an intermediate because of the dual function.

Here are some of the best when it comes to dual purpose marine batteries. (NOTE: these products go up to 31 in group size, so you may want to take note of that):

The Northstar AGM31M

Northstar offers their batteries in the form of advanced glass mat with pure lead technology, making their cells one of the best in terms of performance to a high standard without sacrificing high reserve cycling, ampere per hour capacity and considerably large cranking amperes, too.

Some of the “goods”:

– Reserve capacity of 220 by minutes
– Weight of about 75 pounds
– General Capacity of 80 amperes per hours
– Cold Cranks of about 1150 in amps

In terms of both reserve capacity and cold cranking performance, it is hard to find a balance like this, considering that this battery product performs excellently in both of these categories—quite heavy though.

The Optima D31M

Optima has three different batteries in three different colors (red, yellow and blue) but the Blue Top is often a popular choice for customers who want an advanced glass mat type of battery that not only performs well but has quite a high running capacity and with recharge speeds that are above average.

Some of the “goods”:

– Reserve Capacity of 155 by minutes
– General Capacity of 75 amperes per hours
– Cold Cranks of about 900 in amps
– Weight is around 60 pounds
– Considerably and competitively faster recharges than other batteries

Though perhaps not as powerful as some of the other products that offer cold cranks and more extended reserve capabilities, this product makes up for it by way of fast recharging as well as quite robust internal vibration resistance, which can reduce overall internal heat in the battery cell—greater longevity as a result.

The Odyssey 31M

Odyssey is set up as one of the better brands that deliver on what intermediates and experts want in terms of a marine battery that performs exceptionally well for the price that you have to pay—the payoff though is quite head and shoulders above the rest, and in almost all categories and factors that can be on consideration,

Some of the “goods”:

– Reserve Capacity of 205 by minutes
– General Capacity of 100 amperes per hours
– Cold Cranks of about 1150 in amps
– Weight is about 80 pounds

It is a mighty fine battery that is present here and one that will not go away in terms of delivering “the goods” with the most amount of balance that a marine battery can have as a dual purpose.

The factor is also present with a consistent report by many users; it is hard to ignore the strength of reputation this battery garners across the battery market sphere.

Without a doubt, the Odyssey 31M beats out Optima and Northstar as arguably the better (maybe even the best) dual-purpose battery you can find in the market and for the right bargaining price.

Can You Use A Deep Cycle Battery As A Starting Battery?

As a reference above, you could, but most often than not you will find that you really cannot replace a good starter battery with a battery meant for long, “deep cycling” functions.

You can, however, opt for a better choice in experimentation and investment by selecting a perfect dual-purpose battery that can get both jobs done for a fraction of the cost that it takes to buy two of each.

But, What Is The Best Deep Cycle Battery?

With the specs above in comparison, you can make the argument that because of Northstar’s pure lead technology, you have an amazing (and rising to the ranks) product that delivers considerably considerable amounts of starting function and placing longer reserves of capacities in top priority—it beats Odyssey there.

But, if you are a relative beginner and want a balance in ‘dual-purpose’ while getting more bang for your buck, Optima’s considerably high vibrational resistance to overheating and much faster recharging makes up for a lot—Odyssey and Northstar cannot assure that. (Read the best deep cycle battery for your boat).

Make no mistake: Odyssey is (arguably) the best dual-purpose marine battery brand in the market today—but other options are indeed available.

Android phone getting the drainage every time and you do not wish to buy another phone? Well, the best android battery saver apps can get keep your batteries in good condition if you know what to buy from the myriad of options available—read this article to get to know them.

The Best Android Battery Savers – Do Battery Saving Apps Actually Work?

To make the answer short, its both a yes and no—confusing.

For one thing, it is a yes because battery saving apps are configuration, modifications or changes to your Android phone’s user interface so that brightness, graphics, sound as well as synching features (to name a few) are manipulatable to levels that can save the life span of a battery.

For another thing, it is no because battery saving apps can only ever affect the software part of a device.

To further make the case, there are two operating functions within a given smartphone or Android (with a laptop or PC, for that matter):

1. The Software


2. The Hardware

The former is a pre-set or organized system of commands and processes that make up how your device interacts with you when you use it.

The latter is referring to the materials and structures that create the physical and electronic processes that make software and data encryption possible—without proper hardware, the software cannot run appropriately or at all.

To get better hardware, you pretty much know what to do: buy or get a better phone and choose one with better specs.

This post, however, deals with the software part and why investing in a battery saving app can get you in control of that part of the equation, especially if you do not like configuring your Android or smartphone because it is a hassle.

Here are some apps to take notice of, for your Android (glance over):

Ice Box is a bit off for those in better advancement when it comes to apps and their preference for technologies, but it is nonetheless quite an effective and efficient system for delivering high performance while saving up your battery life span.

> If you are familiar with a “firewall” feature that is present in many personal computers, this does a similar process in that it offers a checklist for applications and services you do not use often or those that you do not understand are frequently running.

> The application keeps them out of use and out of your sight until you launch it by using the app itself.

LeanDroid is under recommendation for people who do not want to spend so much time using battery life and is a reflection of how this app does its business.

> It primarily disables different networking functions such (but not at a limit to) location servicing, global positioning systems, wi-fi, radio, and other data sharing options. What is admirable is that it allows (with your approval) certain apps to activate again just for updates.

> It is useful as both an app that shuts down unnecessary processes and an organizer for more critical functions to take place.

Amplify is another app that approaches battery but from the perspective of synching as well as regulating updates and notifications.

> And, best of all, it does so on the “easy to get, easy to understand” configuration system—first-time users get encouragement with just using the settings of recommendation and then the app will monitor from there.

Automate is pretty much delivers (and works) in a similar way that flows charts and organizing systems works for people in the corporate world—looks at the flow and helps you to take charge of that process.

> In particular, it goes over by letting you customize different charts that influence and control processes of your phone like audio, global positioning systems, and other options.

> With as much as three hundred blocks for building your customizable flow, you are getting as much organization as possible by mostly being able to create a template of how things should run for you—including getting feedback on the blocks you create for your specific device flow.

Greenify is a cool app that avoids the problem with most apps and that it respects not surveying over your phone’s processes all the time—counterproductively cutting away your battery life even further.

> A darling of 2018 fame, the main focus here is on hibernation and that it is a quick-point app that targets other applications (from the most common to the uncommon in use) and puts them to sleep.

> So long as you permit this app to do its job, you can clear the slack.

There are tons more out there for you to explore and it all comes down to software efficiency.

That is to say; one should ask: how efficient do I want to get? –in the long run, this saves up battery life.

What Is The Best Battery Saver App For Batter Life On Android Back In 2018 – And Beyond?

In the case of someone who cannot bother to micromanage, Ice Box is as good as any app to help you get the “bad stuff” out of your sight and hence, “out of your mind.”

In the case of someone who loves to be creative and customize as well as tinker the best flow (not many people can do this), you have an option in something like, say, Automate.

But, if you were asking on what the most people friendly, most recurring and most prominent product back in 2018 as well as to this day, it kind of hard to ignore Greenify.

How Do I Stop My Android From Draining My Battery?

Funny enough, your Android collects up, but they got it from you.

So, do yourself and your phone a favor by:

1. Reducing the brightness to low enough levels.
2. Turn off the audio if you are not going to use it.
3. Disable syncing options that connect to the Internet every chance it gets.
4. Find out if your phone has a “battery saving” options—saves you loads of trouble, too.
5. Charge your phone from 20% – 80% and try to manage the temperature, especially indoors—ideal charging cycles and temperature matter a lot.

Oh, and get yourself the best android battery saver in Greenify or some other app you prefer.

Are you an avid user of motorcycles and have an interest in e-bikes? Well, you are going to have to slice up the difference because most of an e-bikes ideal battery system does not come cheap.

Read up on why in this article as we also give some alternatives to find the best bike battery for your budget in 2019.

Which Battery Is Best For Bikes?

Batteries for a bike should be like other batteries that power vehicles—but they are not.

Well, to be more accurate, the batteries that power bikes can most often than not be very low in quality or come off as inadequate for running newer incarnations of bikes like the more prominent e-bike.

In particular to e-bikes, lithium-ion is a close commodity, but in so far as research and economic standing go, it is relatively pricey for the most part—you are going to have to rely on more budgetary and long-standing brands if lithium is not available.

Here, we take inspiration from one of the largest consumers and customer bases in terms of motorbike usage, India:

The Exide Boss VLRA Dry Battery

> Extended manufacturer warranty (and guarantee, for that matter) and specific in design to adjust to the difficulties of most two-wheel vehicles—maintenance-free, too.

> Calcium and Lead technology that allows for a considerably low point of automatic discharge (preventing overheating).

> Additional fire-related and fire-proof feature that makes it an ideal choice for any motorcycle or motorbike.

The Amaron Pro Rider

> Excellent, valve regulation technology that gives assurance for long-term battery power.

> Perfect fit for just about any vehicle in the two-wheel system.

> Spillage and leak proof, it has a beautiful resistance to the vibration that protects from aspects of internal heat or overheating.

The Mobiker 1080

> Arguably the most effective when it comes to handling a two in wheel bike vehicle.

> Relatively free of maintenance and comes with a full charge at the onset.

> Excellent when it comes to the overall efficiency and running time with a metal type of Ca-Ca that helps in providing a long-lasting performance.

The ACDelco Sealed VRLA

> Quality assurance and entirely in the balance when it comes to its top-ranking battery plates.

> Has a technology that synthesizes currents well and allows for more robust distribution of currents across different ranges.

> Maintenance free and a sturdy and durable casing and covering overall—help with different kinds of impacts.

The Livguard Zing LGBTX

> Beneficial for any vehicle running on two-wheels and has a good valve regulation structure, to boot.

> Hassle free in maintenance with ecologically friendly technology that powers up evenly in automobiles.

The Poweron Sealed Battery

> Valve regulation system in use with a considerable guarantee and assurance of performance.

> An excellent system to just about any vehicles on two-wheels as well as different cylindrical baseliners.

The Amptek E-Bike Battery

> The overall appeal is excellent and has different demographics as a target with a broad and enormous range of products.

> Ecologically friendly with a considerably lighter weight than most batteries you will find in the market.

In all honesty, and this is more relative than anything else, these are economically affordable brands.

And, considering that there is so much turmoil going on for the best ‘electric bike’ battery, you can be sure that these brands are here to stay when it comes to the more significant demographic of bike or motorbike users across different places—they perform well too, given their budget.

Which of them is the better battery though? – it is hard to go wrong and not choose between an Exide or an Amaron brand (but it is really up to you, friend).

So, What Is The Top Battery For Electric Bikes, You Ask?

For so long as people understand that electronic devices and electronics as a whole go together, e-bikes and e-cars are best under a system of lithium-ion batteries.

Lithium-ion is a material that is considered a better regulator and conductor of energy via electric currents and even more so a pronouncement, lithium-ion has a longer (preference) for holding on to voltage.

Thus, with a longer holding of voltage due to lithium-ion, the battery as a whole does not need to be in full charge all the time but has a better chance of survival if one costs between 20 percent in capacity and then up to 80 percent in magnitude.

The material provides a smooth flow of charging between them is often ideal like in smartphones, laptops and other devices that lithium-ion powers most of the time.

And if you want an excellent recommendation on this e-bike battery matter, you have a unique product in the AW Lithium Battery Rechargeable Series!

Here, check out the specs on this one:

Lithium type of battery and averaging around 9 pounds by weight.
Voltage is around 36 in volts or 48 in volts.
Amperage ratings are around 10 amperes per hours and up to 14 amperes per hours.
Long-lasting longevity quality assurance of around 1000 in charge-discharge cycles.

In terms of design, the AV Lithium kind of looks like a bottle to carry water but is rechargeable and pretty much adjustable given that the battery cell is removable also.

The battery can power up an e-bike for a far as 50 miles which is substantially a boon given the weight it has—much power to give despite its structure.

How Long Do E-Bike Batteries Last,?

Most manufacturers—okay, maybe all of them—actually want to produce battery products with a measurable and consistent guarantee of assurance in performance and quality.

That is to say, they keep up to date with the market standards, and they run several battery tests to find the most current average point specification for both performance (more extended duration use) and price point specification (price ranges).

And, the number that comes up for most of these tests ranges around the same degree as the AV Lithium series of batteries: around 1000 in charge-discharge cycles.

But we have to take note that some manufacturers push that boundary up to a particular fold and we can estimate that with right conditions available, your e-bike battery is good for 2000 in charge-discharge cycles—if you cut down to it.

As with most things, lithium is, but the best bike battery is still the brands that appeal to the majority of demographic bike customers.

Solar power is a great resource, especially if you want to live out of the city or for your next trip around the country. But, did you know the deepest cycle batteries have a critical problem in one criterion?

If you want to know what that is, check out our choices and suggestions for picking up the best deep cycle battery for solar power running applications and products—make the right choice, make the best choice.

Overview: Recommended Choices For The Best Deep Cycle Battery For Solar


A versatile battery composition that is useful for many a diverse set of functions, lithium-ion batteries are your choice for overall compactness whenever home use for storing your solar panel energy is a concern. And that is with a much longer span of life in comparison with the other battery types.


New, hip and fresh of the block, saltwater batteries are the latest and the greatest when it comes to options in storing energy. Greatly aiding ecological integrity, you will not find heavy traces of metals that will damage our precious environment with this one. This baby is great for recycling purposes and considered eligible for use in the home use for solar.


The standard grade and consistent running candidate among many battery options, the lead-acid stands apart for what has to be several years of reputable use. It is a boon when it comes to careful budgeting, and for those who want to use batteries for living “off” the city grid, you will not find a better choice than this one. It does not hurt that this battery set is ideal if you want to set up a solar battery bank at a lower set cost.

How To Get The Most Value For Your Buck When It Comes To Buying The Top Deep Cycle Battery For Solar Purposes

The recommended options above remain the top choices, but you will want to focus on these set of criteria to make the most out of the picks that you will eventually choose from these.

Discharge Depth And Capacity Rating In Power Storage

– One of the most important factors when considering a battery for more extended solar panel storage is the ability of the cell to “deep cycle” or sustain a longer while holding of current per kilowatt within an hour (k-W-h).
– The last one is quite important in that a battery that has a larger or higher capacity for holding energy can last for a significant number of hours, but if it has an equally higher rating for power, then you powerful bursts of energy per that hour.
– Equally important to both rating and capacity is “depth,” which promotes potential energy of the battery for a long life by building super circuitry that “estimates” the optimal range for charging.

The Overall Lifespan Expectations For A Battery

– Most people forget that many batteries do not have longevity in their basic makeup, usually within ten years under a charge-discharge cycle that number to 5000—if it reaches that far.
– While the best brands and products out there continue to create more and more energy-saving innovations, you still have to consult manufacturers and their respective experts with regards to the battery type and the specific model within that type for “expectations” as to how far your battery can go without dying out quickly from damage.

The Return Of Investment In Rounds

– If you can get to store a significant amount of energy into a battery for the shortest amount of time, you are in the presence of a high battery right there.
– Most standard battery types usually have a buffer rate of 80% and typically take on average an hour more while you get to a little bit less than 80% when it comes to storing or charging energy in the battery.
– This last criteria factor is something you should ask about but will depend mostly on factors relating to “depth, capacity, and rating.”

Common Question On Buying The Best Deep Cycle Battery For Solar Functions

Can I Use Deep Cycle Batteries For Solar Banks In-Home and Rental Vans?

You sure can, and there are many great options (refer above) with regards to making the most out of your solar storage experience (most valuable because it is a storage series like a solar bank or an off the road rental van).

Why this is true is because the ability for a battery to “deep cycle” can make the sustaining of energy significantly better and will not waste the resources of the battery too much when it comes to overall wear and tear, especially in charging—deep cycling is essentially “smart conservation” on the battery’s part.

Are AGM Batteries Good For Solar Panels And Other Relating Options?

They are, and most of the time, they are great alternatives that are measurable and not wasteful, given that they can exist in just about any battery retail store or storehouse.

The AGM stands for “advanced glass mats,” and they use a fiberglass material to control and compress the acid material that helps the battery move along energy and currents—this acid material usually “leaks” out over time but because of the AGM’s compression control, that event is almost a non-issue.

What Is The Best Battery For RV Solar Power Running Items?

Bar none, the most consistent that you can find is the a standard lead-acid type or the later sealed-acid types like the AGM (refer above) as they are usually low in overall cost and quite useful when it comes to user preference in the market.

The AGM sealed-acid types are mainly the best products for deep cycle batteries around, which is quite essential for rental vans (RV) and even solar running items.

Some Final Words On The Best Deep Cycle Battery For Solar (The Overall Best Choice)

If you are looking for the best deep cycle battery for solar purposes, then saltwater batteries offer a balance in overall cost (fits for a reasonable budget) while having a long lifespan without sacrificing discharge depth, rating of power and a more extensive capacity for energy storage.