So, as a general rule of thumb, batteries have a fixed voltage but: big or new batteries tend to have a low internal resistance, so they can deliver a high current small or old batteries tend to have a high internal resistance, so they can’t deliver much current This entry was posted in -- By the Physicist, Engineering, Physics.
Experts say "current depends on voltage". So, if the voltage is high, current would be high. Agreed; (I = V/R) If the voltage is low, the current would also be low. Agreed -> I = V/R
Battery A has a voltage of 6 volts and a current of 2 amps, while Battery B also has a voltage of 6 volts and a current of 2 amps. When connected in series, the total voltage would be 12 volts, and the total current would remain at 2 amps. Advantages and Disadvantages of Series Connections
Let's consider a simple example with two batteries connected in series. Battery A has a voltage of 6 volts and a current of 2 amps, while Battery B also has a voltage of 6 volts and a current of 2 amps. When connected in series, the total voltage would be 12 volts, and the total current would remain at 2 amps.
The people designing other stuff promise to pull less than some maximum current from the battery as long as the voltage applied is in the normal operating range. When these promises are violated, the convenient simple rules of thumb we use ("batteries put out a constant voltage") don't work anymore.
When batteries are connected in parallel, the voltage across each battery remains the same. For instance, if two 6-volt batteries are connected in parallel, the total voltage across the batteries would still be 6 volts. Effects of Parallel Connections on Current
What causes batteries with the same charge to have different …
Batteries with the same capacity can have different voltages due to factors such as chemical composition, type and design, current state, load characteristics, …
Same current at different voltages : r/ElectricalEngineering
These types of circuits are commonly used in battery chargers where you need to supply a constant current to balance out battery life and charging speed, as well as keeping it safe to not blow the battery up. ... So, for the same voltage, you can have different currents flowing based on resistance. V=I*R Reply reply
What causes batteries with the same charge to have different …
3. Battery State. The voltage of a battery can also be influenced by its current state, including: Charge/Discharge State: The voltage of a charged battery is usually higher than that of a discharged battery. For example, a fully charged lithium-ion battery may have a voltage of 4.2V, while a discharged battery may have a voltage around 3.0V.
Different behaviour of batteries with same voltage …
I am powering an embedded system using one 3V Lithium battery. Two similar devices were acting very differently: when they both were on, the voltage read across the batteries were different (2.9 and 2.78--and of …
How do they produce batteries with the same voltage but …
A battery has internal resistance, that can be viewed as an "invisible resistor" wired sequentially with the voltage source. This resistance restricts the charging and …
How can different batteries have the same voltage but deliver
AA, AAA, C, and D batteries are all 1.5 volts, but they deliver different currents. I thought that Ohm''s law, V = IR, meant that batteries with the same voltage, introduced into the same circuit …
Why is current the same when batteries are connected in series?
First, when we say "the current is the same when batteries are connected in series" we mean that the current through battery 1 is the same as the current through battery 2. We don''t mean that the current in this configuration is the same as the current in a different circuit with two batteries in parallel connected to the same load.
Battery Basics: Series & Parallel Connections for …
The main difference in voltage and current behavior between series and parallel connections is how they affect the total voltage and total current. Series connections increase the total voltage and keep the current constant, while …
Battery Voltage: Debunking the Myth of Same Voltage in Different …
When it comes to batteries, one of the most common misconceptions is that all batteries with the same voltage will have equal power and performance. However, this is far …
multiple source different current, same voltage in parallel
Is possible to connect multiple suppliers at the same voltage but different currents? I did a circuit to better understand. And last question what kind of device or component (?) I can connect to have the output the same voltage as input, but the current is the summation from all input current.
Can I Connect Two Batteries of Different Voltage in Parallel?
When connecting batteries in parallel, it is important to ensure that the batteries have the same voltage and state of charge. Connecting batteries of different voltage in parallel can result in an uneven distribution of current, potentially damaging the batteries and reducing their overall lifespan. Technical Considerations for Parallel ...
Q: How are voltage and current related to battery life? What is the ...
So, as a general rule of thumb, batteries have a fixed voltage but: big or new batteries tend to have a low internal resistance, so they can deliver a high current small or old …
19.2: Electric Current
Thus a motorcycle battery and a car battery can both have the same voltage (more precisely, the same potential difference between battery terminals), yet one stores much more energy than the other. The car battery can move more …
How Battery Voltage Affects Performance: A Detailed Guide
Maximum Voltage: This refers to the highest voltage a battery can reach during charging before it risks overcharging and damage. Part 4. Voltage of common battery types. Different battery types have different voltage levels. Here''s a breakdown of the nominal voltages for some of the most commonly used batteries: Lithium-Ion (Li-ion): 3.7V per ...
Why are batteries different sizes but same voltage?
Originally Answered: Why are rechargeable batteries rated at 1.2 volts vs. regular batteries at 1.5 volts? It is to do with the chemistry. Alkaline and zinc-carbon cells have a chemistry that develops 1.5v.
why does sources with same voltage drive different …
$begingroup$ Phones have ''local intelligence'' to manage battery charging (it is the real charger), it isn''t defined by the ''charger'' which just supplies current at a voltage. So a trivial answer is the phone charger only …
Do Batteries in Parallel Need to Be the Same Size?
However, it is important that all batteries in a parallel circuit have the same voltage. If batteries of different voltages are used in a parallel circuit, ... The formula for determining the total voltage and current output of a …
Can I Use a Battery with Same Voltage but Lower Amperage?
Yes, a battery with lower amperage can function safely with the same voltage. However, this setup may have limitations. Lower amperage indicates a reduced maximum current the battery can supply. Devices designed to draw a higher current than the battery''s rating may not operate properly. They might underperform, not start at all, or even ...
Can A Battery Have Good Voltage But Still Be Bad? Myths About Battery …
Different materials used in battery construction can lead to various degradation rates. Lithium iron phosphate (LiFePO4) batteries have a longer lifespan than traditional lithium cobalt oxide (LiCoO2) batteries. ... consider using high-drain batteries designed to provide both good voltage and higher current. If a battery consistently shows good ...
Connecting two similar, equal voltage …
Two batteries with the same nominal voltage rating, can easily have different open circuit voltages. When two batteries with different open circuit voltages are connected …
Q: How are voltage and current related to battery life? What is …
Please guys i am very confused about current in a circuit.on one hand we say that the battey have specific data about voltage and current.for a reachargable aa battery it may be 1.5 v,1200mah.but when we attach a battery to a circuit say it has a 10k Resister then it should draw the currrent according to ohms law with the applied voltage.then please tell me …
How do I equalize the voltage of two batteries without buying
The only problem is that huge currents will flow when you connect two batteries at very different voltages. That can cause the batteries to overheat. Just use a resistor to limit the current. If you don''t have a resistor, any long and thin enough wire would be sufficient to keep the current below 1A. Or use a long thin strip of aluminium foil.
Can I replace a laptop battery with one that has the same voltage …
I have an Acer Aspire E15 E5-576G that uses battery model AS16A5K (14.8V 2800mAh/41.4Wh), and I want to replace it with battery number AL15A32 from an Acer Aspire E5-473 (14.8V 2500mAh/37Wh). The charging current for mine is 1.536A @ 17.2V max, while the AL15A32''s is 1.26A @ 17.4V, and, as far as I know, the batteries need to be of the same voltage
Why can different batteries with the same voltage send different ...
There''s a usually unspoken rule of thumb when designing stuff with batteries: The people designing the battery promise they will keep the voltage within a certain range as long as the …
batteries
What will happen if I use same volt and capacity battery but different in current. ... it should be Same mAh, same volt - different maximum current $endgroup$ – jsotola. Commented Jun 18, 2020 at 0:34 ... Simple low-current voltage limiter in a solar battery charging circuit. 0. Voltage Sag in Li-ion batteries, And how to reduce them ...
Can I replace a battery with a source of the same voltage but different ...
There are no replacement batteries for the device so I am trying to put something together myself. The original battery has written on it 3.7 V, 1.41 W. I have found a battery (CR123A) that is 3.7 volts and 700 mAh. Can I safely use it? Also, the original battery has 3 wires - red, white, and black. How would I connect the new regular battery?
Batteries Part 2
When a battery cell is open-circuited (i.e. no-load and R L = ∞Ω) and is not supplying current, the voltage across the terminals will be equal to E.When a load resistance, R L is connected …
Can batteries of different sizes have the same voltage?
How can the same voltage have different current? Currents are the same through all components connected in series. For example if a 2V battery and a 6V battery are connected to a resistor and LED in series, the current through all the components would be same (say, 15mA) but the voltages will be different (5V across the resistor and the 3V across the LED).
Why are different currents used for charging batteries with the …
1 Amp and 2 Amp chargers for a given battery type will produce the same final voltage, but the 2 Amp charger can deliver a higher currrent into a discharged battery.