Skip to main content

Why should we avoid parallel connection for Battery Systems?

Sometimes, many of us consider when we fall short with a certain battery bank, add units until we have a sufficient power reserve for our needs. This seemingly innocent process can be very expensive. And this because we say it? Very simple, you have to avoid at all costs making parallel Battery Systems .

Sometimes, many of us consider when we fall short with a certain battery bank, add units until we have a sufficient power reserve

In a perfect theoretical electrical system there would be no problem, but this does not exist in real life. Batteries connected in parallel or series-parallel initially do not give any problem, but after a period of operation, and if it is intensive, after a few weeks the evidence of the faults that are generated begins to be appreciated :

- The load is not uniform . They go from being unloaded to being almost fully charged with an abnormally fast speed. This occurs because one of the batteries in the bank offsets the power reading made by the inverter / regulator.

- The capacity that we appreciate for its operation is lower than it should be . The typical question of: 'if I have so much capacity, I can't explain how I have so little autonomy'. This occurs because some of the Battery Systems in the bank are more worn than the rest and carry a very low energy reading that drops the voltage of the entire bank.

- Battery wear is accelerated . There are batteries that work much more than others since the conditions that must be met for us to be as close as possible to a perfect electrical system do not exist.

- The batteries have not been purchased all at once .

- The length of the cables is not identical .

- The internal resistance of the batteries is not identical (this is unavoidable)

- The initial state of charge of all batteries is never the same .

Sometimes, many of us consider when we fall short with a certain battery bank, add units until we have a sufficient power reserve

Broadly speaking, we can summarize that in a parallel system not all batteries are charged equally, from what we have just explained and that is why there is always a minimum transfer of energy between one battery and another, so Battery Systems connected in parallel they will never reach 100% charge , that is, the connection of the connected batteries greatly accelerates wear and tear and causes an installation with batteries in parallel to be condemned to give problems in a short space of time .

AutoSolar batteries have a two-year manufacturer's warranty, but if any of the purchased batteries has been connected in parallel, the manufacturer does not assume the replacement or repair of the same , therefore, when the battery is connected in parallel already the warranty does not cover you.

Obviously, the manufacturers in their laboratory do the convenient tests to study if the battery in question has been connected in parallel or in series, since with simple tests the type of connection made by it is clearly seen.

Our recommendation from AutoSolar is to avoid as much as possible the parallel connection , to use batteries only in series, and if we need more autonomy, use larger Battery Systems, which are for that, not to add smaller units, since the investment to the long is much more expensive.


Popular posts from this blog

Durable floor in garage, kitchen with satisfactory Tiling

When choosing the cladding of garages, shopping malls, restaurants, kitchens, or other large-concept rooms, we must carefully choose floor Tiling to obtain aesthetically and technically sound, durable cladding.  It is recommended to choose a colored gres tile in its material so that our floor can withstand years. The AG plant, like many cold cladding manufacturers, is striving to meet the ever-widening customer needs of its customers.  The  unglazed, impregnated, gres-colored floor tiles of the  Pimento  fantasy name are perfect for both home and industrial use, both indoors and outdoors . Their surface is matt, 30 * 30 cm, their raw material is stone porcelain (gres, ie sandstone ceramic), which due to its compactness has low water absorption, is extremely wear-resistant, solid, very hard and has the same material in its entire thickness.   The  Pimento floor  Tiling  are  tinted in the material, there is no layer of  glaze  on them, so, although we have to compromise on the design,

Electrical Solution in the house

In this article we will focus on the design and installation Electrical Solution in the house , the cottage, cottage, country house, etc. You will find answers to many common questions, for example, how to correctly complete a home power supply project  , connect a cable line to a power line support, design and install electricity metering and distribution boards, how to determine the estimated power consumption and choose protective devices, lay  electrical wiring in the house , install sockets and luminaires, perform a ground loop and a potential equalization system and much more.  The information will be useful for designers, installers, students of educational institutions, people who are fond of electrics who want to understand the essence of the process and take part in the design and installation of electrics in the house. You don't have to read a lot of literature, because I will try to outline the basic materials that are really useful and useful briefly and without unnec

How can IOT home automation help fight viruses in your home?

In this article we will analyze in depth how home automation can help fight against corona virus and possible future viruses in our home. With this article it is my little way of contributing a grain of sand to society to fight the corona virus in an active way from home automation . But if anyone wants to contribute new ideas or has any questions, please leave me in the comments, it all adds up. Clarify that this entire article is based on IOT (internet of things) products that you can buy on the internet through Amazon or other platforms that are currently working in this crisis, distributing to homes for a very low price and you can install it yourself, without too much complications, since they are products designed for the end consumer categorized as DIY (do it yourself - do it yourself). Therefore we will be based on the three main systems that currently exist for the Internet of Things, which are: Amazon Alexa Google Home Apple Homekit Since with these three we cover all audienc