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Connecting Different Amp Hour Batteries in Parallel:
Connecting two batteries in parallel is a technique that is improperly used to expand the intensity, or amount of electrical charge, that we can obtain from an external power source - generally, from two batteries with identical capacity. Let’s talk more about connecting different amp hour batteries in parallel.
Connecting Different Capacity Batteries in Parallel:
This type of installation is carried out using an interconnection cable that connects them through the positive poles of both batteries. On the one hand, and using another interconnection cable that connects them through the negative poles, the other hand.?
What is achieved with this is to add their currents in amps and maintain an identical voltage. Now, why its use is not recommended, what are the disadvantages of carrying out this type of installation. What do we expose ourselves to when connecting two batteries in parallel? We explain it to you in more detail, below.
Can you put two different amp hour batteries in parallel?
Are you wondering why shouldn't connect two batteries in parallel? Well, here we have given details about it. The problem with connecting the batteries in parallel is that these can cause an overload of the battery closer to the current input, as well as an inadequate charge of the battery that is further away.
An overload means that there is an increase in current, usually due to overheating of the same - either due to heat, as well as improper installation.
The problem with this is that it can lead to an explosion - with all the negative consequences that this can cause us. Likewise, in the case of the battery that is further away from the current input. And by not charging properly, it will be constantly degrading, so its useful life will be shorter and we will waste money.
Another problem with connecting two batteries in parallel is that the first one, the one that is closer to the current input, will be charged with a higher current and voltage for which it is prepared, something that, apart from overloading can also influence its imminent deterioration and the reduction of its useful life.
What happens, in this case, is that, by connecting the batteries in parallel, we close a circuit and generate an unbalance of the currents. As the capacities of the batteries are no longer identical, and when they are linked together, they give up electrical charges between each other to equalize the voltages. That is, its operation is incorrect, which leads to premature aging of both. Another of the main consequences of installations of batteries in parallel is that the interconnection cables.
Also, they suffer an alteration in their resistance which can lead - in parallel - to a destabilization of the whole, as well as affect the useful life of the batteries that are connected.
Without forgetting, either, that when undergoing a variation in the resistance that the cables support, they will overheat - due to the high intensity that circulates through them - and can lead to a fire in our home or place where we have connected the cables.
That is why, its use is not recommended and that, if it is carried out, it is carried out by experts who are very aware of the operation of electricity and who take the necessary safety measures. So that, the installation generates the minimum problems in terms of wiring, as well as the position of the batteries and, of course, the operation of these in parallel.
Likewise, if this type of battery connection is carried out in parallel, it is recommended that the installation be reviewed periodically to verify that there are no problems. Making use, for example, of ohmmeters to measure electrical resistance, as well as voltage and any relevant aspect of the installation and electrical current.
What happens when connecting two batteries of different amp-hour ratings in series?
When you connect two batteries of different amp-hour rating in series, it will surely work, but it will be a high chance to damage both batteries during recharge and discharge cycles.
In general, this type of connection is usually made in isolated solar photovoltaic installations. And is that many people consider this an option to expand the charge of solar batteries.
What is sought with this is that the solar batteries expand the charging capacity so that, when making use of the energy stored through the solar panels, its use can be prolonged.
Although at first, installing solar energy batteries in series may seem like a good idea to make better use of the energy produced by photovoltaic panels, the truth is that it can lead to serious problems.
Solar batteries, or solar energy batteries, in series, are not recommended. The most appropriate thing is to use a solar battery with a greater capacity, or charge, to be able to take full advantage of the energy produced by the monocrystalline or polycrystalline silicon cells of the solar panels without risks to our physical integrity.
What is the connection of batteries in series?
The connection of batteries in series, unlike batteries in parallel, is an installation that is carried out by connecting the opposite poles of a battery with the opposite poles of another battery. That is, the negative charge pole of one battery is connected to the positive charge pole of the other using an interconnection cable, usually with a cable that is small enough to connect both batteries. This process is repeated with the positive charging pole of the initial battery connecting to the negative charging pole of the other.
In this way, a sum of the voltage or potential difference of both batteries is achieved, maintaining the intensity or electrical charge. Unlike the connection of batteries in parallel, batteries in series do not pose a danger to our health and integrity since they only allow the passage of current when there is consumption.
As long as there is no use of them, the batteries remain idle. Of course, for the installation to be safe, and for us to obtain the desired voltage, the batteries in series must have identical capacities.