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2.By Sea (15-30 days), suitable for mass production
3.By Air (4-7 days), suitable for urgent orders.

Yes, they are, in the long run. 

Yes, for better performance, please consult with us. 

Yes, they are.

More than 5 years at least. 

Normally, you don't have to worry about these if it has PCM/BMS built-in. 

No, PCM/BMS is necessary. 

In short, it's a part that can protect your battery.

Please leave a comment below pages or directly email to sales@seschn.com. Don't forget to make your requirements as detailed as possible.

Trial order is available. Normally you can get a sample to confirm everything first, then do the bulk order exactly the same as you request.

Parallel Connections – These connections are used when you want to increase the amperage of your battery bank. Most commonly, parallel-only connections are found in 12V systems.

The connections on this type of battery bank go from positive to positive and negative to negative.  Connecting this way will double your amps (see diagram left). 

Series Connections – This type of connection is used when you need to increase the voltage of your battery bank. These types of battery connections are found in all types of battery banks including 12V, 24V, and 48V systems. 

For instance, making a connection to the positive and negative terminals in this orientation is different than a parallel connection. Doing so links the batteries together increases the voltage of the battery bank (see diagram right). 

*If you plan to wire your batteries in series, please let us know when you place your order so we can make sure to match your capacity. 

Here at SESCHN Batteries, we offer two different lithium battery sizes: our 100 Amp-Hour SES-DCB-12100 and HPB series, and the 200 Amp-hour SES-DCB-12200 batteries.

These two different sizes of batteries should never be connected. Any attempt to connect SESCHN Batteries of different amp-hours will result in a voided warranty.

You should only ever connect batteries of the same size.

You cannot connect batteries of different amp-hours in series with good results.

We strongly recommend you DO NOT attempt to mix battery sizes (amp-hours) and connect together. Due to differences in battery management systems and battery cell counts, there may be a charging and voltage discrepancy between batteries.

This will cause the highest voltage battery to charge the lowest voltage battery attempting to create balance in the circuit. The greater the difference in voltage, the higher the probability of battery failure.

The battery management system monitors individual cells in the battery pack. It then calculates how much current can safely go in (charge) and come out (discharge) without damaging the battery.

The current limits prevent the source (usually a battery charger) and the load (such as an inverter) from overdrawing or overcharging the battery. This protects the battery pack from cell voltages getting too high or low, which helps increase the battery’s longevity.

The BMS also monitors the remaining charge in the battery. It continually tracks the amount of energy entering and exiting the battery pack and monitoring cell voltages.  It uses this data to know when the battery is drained and will shut it down. This is why lithium-ion batteries don’t show signs of dying like a lead-acid, but just shut off.   

The primary function of the BMS is to protect the battery cells from damage caused by being overcharged or over-discharged. Additionally, the BMS calculates the remaining charge, monitors the battery’s temperature, monitors the battery’s health and safety by checking for loose connections and internal shorts. The BMS also balances the charge across the cells to keep each cell functioning at maximum capacity.

If it detects any unsafe conditions, the BMS shuts the battery down to protect the lithium-ion cells and the user.

A battery management system (BMS) is said to be the brain of a battery pack. The BMS is a set of electronics that monitors and manages all of the battery’s performance. Most importantly, it keeps the battery from operating outside of its safety margins.

The battery management system is critical to the battery’s safe operation, overall performance, and longevity. Moreover, it protects whatever the lithium battery is installed in (boat, RV, etc.) and the people who are using it.

We understand that a lot of customers use their rigs to go exploring off-road in often rocky and bumpy areas. That’s why when we test our batteries, we put them through vigorous vibration standards. They can handle vibration on vehicles.

Our batteries can be used in marine based applications, whether you live on a sailboat or fish on the lake with a trolling motor. The batteries are water resistant sealed and can handle being in a moist environment, but please make sure not to submerge your SESCHN Batteries or expose them to large amounts of water! Like any other electronics, prolonged water exposure has the potential to cause harm to both you, the batteries, and your system overall.  

Our experts say it depends. Usually, you don’t have to change out any other components in your system to have it work. For example, our 12V, 100 amp hour battery will deliver 12V and will be compatible with the same system that the lead–acid batteries it’s replacing. We just have to make sure it’s sized properly and the power that’s drawn is able to be accommodated by our battery within the current limits specified by the battery. 

However, our LiFePO4 batteries will discharge at a slightly higher voltage. Even though it could be at a very low state of charge, it will still exhibit a high voltage. Some chargers do not recognize this as an empty battery and will not charge it. The only changes that might have to be made for charging purposes would have to be to replace a charger that can detect that the battery is not at full charge or a charger that can be programmed.  

Some other changes might have to be made to the system to make sure it’s performing at its best. Our LiFePO4 batteries can deliver a lot more power than you’d expect when you’re used to utilizing lead–acid in your system. A larger gauged cable might have to be incorporated so you can properly handle all that power. If you want to run your air conditioner off your batteries, which you can’t do easily with a lead– acid battery system, a soft starter will have to be installed onto the AC unit.

SESCHN Batteries are designed to serve your system in a multitude of ways. We understand that for some rigs, every pound counts. That’s why our batteries are a third of the weight of your standard lead–acid batteries and only tip the scales at a sleek 31 pounds.  

If you want to replace your lead–acid batteries with our LiFePO4 batteries, it’s easy to drop them into your system. As drop-in replacement batteries for group 27 and group 31 sizes, Battle Born Batteries are the same exact size and can fit in whatever space you’ve designated for them in your system. They are considered lead acid drop-in replacements for that reason. 

Each digital era comes with new inventions, making consumers more connected than ever. Batteries are one of the things that have gone through a wide range of changes, each to make them work better.

We all know how important batteries are today. They power the mobile devices on which most of us rely.

But they run out of power. And this can get you in a situation where you cannot access a charging station.

What can you do then? You need to charge your battery in the middle of nowhere. This is where hand crank battery chargers come in.

Many people don’t know about crank battery charging, yet technology has been around for many years. If you are such a person, don’t worry.

You have come to the right place. In this guide, we will be talking about crank battery chargers and applications.

Crank Battery Charging

Are you looking for a way to charge crank batteries? Understand that these are not like your regular batteries used in marine applications. You must learn about them if you wish to use such batteries.

To know crank battery charging, one must first understand what cranking batteries are.

So, what is a cranking battery? This is one among the two types of marine batterie sold for boats and marine vessels. It is also called a ‘starting battery’ because it’s meant to start your craft.

The batteries are made in such a manner that they give one massive expenditure of energy. It is the same power required to start your boat’s engine, making these batteries very important for every boat owner.

In the modern era you may notice that there are many advancements in technology that have made humanity a much better chance to survive, the reason for that is this advancement became important because with progressing age people demand for much better convenience. They want to get to their place of choice faster, they want better treatments to their illnesses, they want to experience things that were not there before. So, for that cause they invented things that have the ability to jaw drop anyone, especially if they were from a previous era. 

One such invention is the formation of batteries; these are the best source of electricity and power nowadays. The times have changed when people used to use diesel and petrol to get things worked out, that being said we are still not free from such non-renewable sources, but to some extent electricity has replaced the basic utilities that are being used in the everyday life. These are simple cells, that have 3 main components, there are 2 electrodes and one electrolyte. The electrodes are known as the cathode and anode. The anode is the one where the electrons are released from the cathode and they travel across the battery’s electrolyte and thus work their way to the anode terminals which is the positive terminal that accepts the electrons this is how the charge is produced and then supplied to the appliance. The other great and possibly the most important part of the battery is the electrolyte, it is basically a certain compatible substance that is being solved in an organic solvent. This electrolyte has charges that then provide the energy that is needed. 

Corroded Battery Cables Symptoms

There are many problems with battery sometimes they may have problems with not being charged completely or having a weak discharge cycle that is not providing the proper amount of electric current to the appliance. Similarly, there can be several issues with the battery cable as well. first of all, we must understand what are the battery cables. Battery cable involves two types of jumping or latching cables one is of red color while the other is of black color. the red color one is used for the positive terminal of the battery and it connects to the computer systems of the car whereas the black wire or the black cable is attached to that terminal of the battery which is used for the purposes of grounding the chassis is to the ground. These jumping cables are very essential for any car to have that in their emergency deploy bag. This is causing sometimes a car battery may not have the necessary potential it needs to turn on the car therefore with the help of external assistance you can charge your battery up to that point using a jump start mechanism. there are several symptoms of noticing that your car is not of pristine condition and the jumping cables are not doing their work. To understand the symptoms of the bad battery cable we must first understand how do these battery cables work. these battery cables are essential because they connected the car to the computer, and the ignition lights which also involves several other electrical components. therefore, making these jumping cables an essential part of your vehicle because they supply power to those parts of the car which need energy for the basic purposes. If your vehicle does not have a good quality of battery cables then I’m afraid that your car won’t be able to function properly. There are six main symptoms that will tell you That your car is not functioning properly or rather your battery cables are of poor quality or condition. the first symptom is that the car's interior lighting will start to dim and therefore eventually go out completely. In the second symptom the engine fails to start again completely this is because the required electrical potential that is needed from the battery is not being supplied to the ignition chamber which is needed to ignite the petrol which in turn produces energy to run the engine. in the third symptom your car's engine will start to crank or rather it is extremely slow to crank. In the 4th symptom you will notice that your car produces a certain clicking noise when you turn or rotate the key, usually your car should start but it does not in this case all it does is produce a clicking sound. The fifth symptom of having a bad battery cable is that your car loses electricity completely and this is quite devastating if you are driving an electric vehicle such as a Tesla. And the last symptom which shows that your engine is not functioning or rather your battery cables or not working perfectly is that your engine will stall if you do not Push your car mechanically. 

Batteries have been around for many years, helping us get power in portable devices. And there are different variations designed for specific uses.

One of the most common types and perhaps most reliable is the lead crystal. These are batteries that can be charged faster and perform better than AGM batteries. They have similar features to Lithium deep-cycle cells but are much cheaper.

Many people have been asking about these batteries over the past few years. Most want to know if they are good batteries and how to charge them.

Manufacturers like Redarc agree that these batteries are becoming more and more popular. This guide will discuss what crystal cell batteries are, what makes them unique, and how you can use one.

In terms of price, no battery technology represents great value than lead crystal batteries. Consider their life cycle versus cost, and Deep Cycle AGM batteries stand no chance.

Think of the remarkable life cycle of 6000 cycles at 20% depth of discharge, and you have a long-lasting battery. It promises 3800 cycles at 50% and 1400 cycles at 80% depth of discharge. You may never find another battery that performs this good at their price range.

What is a lead crystal battery?

A lead crystal battery is a unique battery type that carries several special features. It is defined by a nearly solid-state electrolyte that solves most of the problems associated with conventional batteries. You can discharge them deeper, and they will still work. Also, you can cycle them often and still hold their long lifespan. They can withstand extreme temperatures too.

The AGM battery was the first type of lead-acid battery to be produced. And then, the lead crystal design team started a mission to eliminate all the major issues they had. They started by using a crystalline silicon dioxide electrolyte instead of the traditional acid/water, making a new lead-acid crystal technology that would work much better.

As humanity progresses, we notice many changes in technology and advancement. This technological advancement is something that cannot be avoided and the reason for that is convenience. the modern era has human beings that ask for convenience above all. these are the type of people who do not want to wait for the results of their hard work but they want quick results so that they can progress ahead or move on. In the past people used to have calculators of the size of an entire building however now that is something that can be done on a mere watch that is worn over your wrist. There are many other such inventions and advancements that if continued to mention the list would not end for example the invention of electricity is also considered one of the biggest ones due to the fact that it is now being used in almost every household that we know even in the areas where there are no electrical production sites there are electrical appliances.

One such invention is that of the battery, this is also a great invention and the reason for that is quite simple. It is a major source for electrical appliances power without which any electrical appliances will not run. A battery is a relatively simple device which involves three main types of components, it consists of an anode, and cathode and last but not the least an electrolyte. Taking an example of the lithium-ion battery or the Li-On Battery we will be explaining how a battery works and what principle the battery uses to perform what it does a battery consist of cathode which functions to produce electrons that are discharged into the electrolyte solution, anode functions as a positive terminal for the electrons and therefore receives the electrons that are being shot out from the cathode. An electrolyte solution in an electrolyte solution in a battery such as that of the lithium oxide one in consist of a lithium metal oxide that is being dissolved into an organic solvent such as phenol solution or something else. So, these are the essential components that are needed to make sure that any battery works or performs in the most optimum manner that is available. There are go several types of redox reactions there then produce energy that is needed for working of any appliance that is available or attached to that battery. 

Blue Corrosion

The blue corrosion that you will see on any battery is due to the copper sulphate corrosion that produces a sort of insulation around the terminal of your battery which would have been used for the purposes of producing electricity and transmitting it to the battery cables and therefore providing energy to the appliances that are fitted within the car. This type of corrosion can vary in colors for example it can be of white green or blue color. This type of battery corrosion is basically due to the accumulation of hydrogen gas that is being produced as a result of reaction that is taking place within the electrolyte medium of sulfuric acid within the battery. as these gases are released from the battery they react with the surrounding atmosphere as a result of which it begins to produce a certain corrosive element which is a typical type of oxide between the battery cable that is touching or connected to the terminal and the terminals of the battery. As soon as this process of corrosion starts the other outside factors such as moisture as well as other types of salts that are present within the atmospheric air are also promoting factors for such type of corrosions, typically a battery corrosion usually happens at the negative terminal of the battery.

One of the most common types and perhaps most reliable is the lead crystal. These are batteries that can be charged faster and perform better than AGM batteries. They have similar features to Lithium deep-cycle cells but are much cheaper.

Many people have been asking about these batteries over the past few years. Most want to know if they are good batteries and how to charge them.

Manufacturers like Redarc agree that these batteries are becoming more and more popular. This guide will discuss what crystal cell batteries are, what makes them unique, and how you can use one.

In terms of price, no battery technology represents great value than lead crystal batteries. Consider their life cycle versus cost, and Deep Cycle AGM batteries stand no chance.

Think of the remarkable life cycle of 6000 cycles at 20% depth of discharge, and you have a long-lasting battery. It promises 3800 cycles at 50% and 1400 cycles at 80% depth of discharge. You may never find another battery that performs this good at their price range.

What is a lead crystal battery?

A lead crystal battery is a unique battery type that carries several special features. It is defined by a nearly solid-state electrolyte that solves most of the problems associated with conventional batteries. You can discharge them deeper, and they will still work. Also, you can cycle them often and still hold their long lifespan. They can withstand extreme temperatures too.

The AGM battery was the first type of lead-acid battery to be produced. And then, the lead crystal design team started a mission to eliminate all the major issues they had. They started by using a crystalline silicon dioxide electrolyte instead of the traditional acid/water, making a new lead-acid crystal technology that would work much better.

Among the three major operators, China Mobile has relatively more applications for lithium iron phosphate batteries, while China Telecom and China Unicom are more cautious. The reasons for the large-scale use of lithium iron phosphate batteries are mainly due to high prices and concerns about reliability...