On Tue, 26 Aug 2025 20:36:07 +0200, ʅǝxᴉꓒ®🇵🇱 wrote:
> W dniu 26.08.2025 o 20:27, J.F pisze:
>> Fakt, że te moje stare wykazywały wzrost rezystancji, a może i korozję
>> połączeń.
>>
>> Jakbym miał gdzie wyrzucic, to może zrobiłbym sekcję.
>>
> I co by Ci to dało? GPT nie chce Ci się odpalić ale stare akumulatory
> chcesz penetrować?

No jak widzisz - nie bardzo mi się chce.

Ale jakbym spenetrował, to czegos bym się dowiedział.

A od AI się dowiem, co się tej AI wydaje ...

no ale spytajmy chatgpt

-why AGM batteries are better then ordinary?

"1. Maintenance-Free: AGM batteries are sealed and do not require
regular maintenance (such as adding water), unlike traditional flooded
lead-acid batteries.

4. Fast Charging: AGM batteries can accept a higher charging current
compared to traditional lead-acid batteries, allowing for quicker
charging times. "

itd

-Why AGM batteries can accept a higher charging current ?

1. Absorbent Glass Mat Technology: In AGM batteries, the electrolyte
is absorbed in a fiberglass mat, which keeps it in close contact with
the lead plates. This design allows for more efficient ion transfer
during the charging process.

Hm, czyż może byc bliższy kontakt niż płyta zanurzona w elektrolicie?

2. Lower Internal Resistance: AGM batteries generally have lower
internal resistance than flooded lead-acid batteries. This means they
can handle higher charging currents without generating excessive heat
or causing significant voltage drops.

3. Reduced Gassing: AGM batteries are designed to be sealed, which
minimizes the loss of electrolyte through gassing. This means they can
tolerate higher voltages and currents without the risk of water loss
or damage from excessive gassing, making them safer to charge at
higher rates.

4. Temperature Tolerance: AGM batteries have a better temperature
tolerance than traditional lead-acid batteries. This allows them to
charge safely and efficiently at higher currents, even in a wider
range of temperatures.

5. Cycle Life: AGM batteries are designed to handle deep cycling,
meaning they can accept higher discharge and charge rates without
significantly degrading their cycle life. This quality also allows
them to recharge faster.

6. Efficiency: AGM batteries exhibit higher charge efficiency, which
means that more of the supplied current is converted into stored
energy, allowing for faster charging."

- Why AGM batteries exhibit higher charge efficiency ?

powody 1, 3, 2 powyzej i


4. Ability to Handle Higher Charge Rates: AGM batteries can withstand
higher charge rates without significant degradation in performance.
This higher charge acceptance means that they can be charged more
quickly and efficiently than many other types of batteries.

5. Improved Cycle Life: AGM batteries support a deep discharge and
still maintain a good charge efficiency over multiple cycles. This
durability allows for longer service life and sustained performance,
which can contribute to a higher overall efficiency in usage.

6. Higher Voltage and Lower Self-Discharge: AGM batteries tend to have
a higher nominal voltage compared to other lead-acid batteries, which
can enhance charging efficiency. Additionally, they generally have a
lower self-discharge rate, contributing to better overall performance
over time."

Wie, czy nie wie?

- Why AGM batteries have reduced gassing?

"1 Sealed Design: AGM batteries are sealed units, which helps contain
the gas produced during charging. In a flooded battery, excess gas can
escape, while in an AGM battery, it is mostly retained, leading to
less gassing.

2. Absorption of Electrolyte: The electrolyte in AGM batteries is
absorbed into a glass mat separator. This construction prevents the
electrolyte from sloshing around, which can lead to more gassing
during operation. The absorbed electrolyte is more stable and promotes
more efficient chemical reactions.

... hm ...

3. Reduced Electrolyte Loss: The design of AGM batteries reduces the
evaporation of the electrolyte, which is a significant contributor to
gassing in flooded batteries. When the electrolyte is maintained at
optimal levels, the chances of producing gas during charging are
reduced.

... hm ...


4. Controlled Charging: AGM batteries are often charged with more
controlled charging profiles that minimize overcharging. Overcharging
can lead to excessive gas production, so the ability to manage
charging rates effectively in AGM batteries helps reduce overall
gassing.

... hm - to lepiej znoszą przeładowanie, czy nie muszą?

5. Lower Internal Resistance: AGM batteries have lower internal
resistance than flooded batteries, resulting in less heat generation
during charging. This lower heat production reduces the likelihood of
gassing as heat can increase the rate of gas production.

... hm ... sprawdzic temperatury?


6. Enhanced Safety Features: Many AGM batteries come with built-in
safety mechanisms that further reduce the potential for gassing, such
as pressure relief valves that can vent gases safely without creating
an open environment or allowing significant gas escape.

... no ale to zapobiega wybuchowi, a nie zapobiega gazowaniu :-)

-if AGM batteries are sealed unit, why they do not explode, when
gassing occurs during charging?

"1. Gas Venting Mechanism: AGM batteries are equipped with pressure
relief valves. If the internal pressure rises beyond a safe level due
to gassing (which can occur during overcharging), these valves open to
release gas safely. This prevents the buildup of pressure that could
lead to an explosion.

2. Controlled Gassing: AGM batteries are designed to minimize gassing
under normal charging conditions. While some hydrogen and oxygen gases
may evolve during the charging process, the design of the battery
allows these gases to be absorbed back into the electrolyte. As a
result, excessive gassing is reduced, mitigating the risk of pressure
buildup.

3. Sealed Design: Although AGM batteries are often characterized as
"sealed," they are not completely airtight. The slight permeability of
the AGM separator material helps in escalating a controlled release of
gas rather than allowing it to build up to dangerous levels.

4. Charging Regulation: Proper charging techniques and equipment help
prevent conditions that lead to excessive gassing. Using a compatible
charger and following the recommended charging protocols ensure the
battery charges safely, minimizing the risk of overcharging, which can
cause gassing.

5. Construction Materials: The materials used in AGM batteries are
robust, enabling them to withstand pressure variations without failing
or rupturing."

Jak myślisz - mają solidniejszą konstrukcję?

-What pressure is inside AGM batteries ?

"Absorbent Glass Mat (AGM) batteries are a type of sealed lead-acid
battery where the electrolyte is absorbed in glass mats. These
batteries typically operate at atmospheric pressure when they are
sealed. However, during charging, especially if they are overcharged,
some gases may be generated (hydrogen and oxygen), which can slightly
increase internal pressure.

In practice, AGM batteries are designed to be maintenance-free, and
while they may have a small relief valve to release excess gas and
manage pressure, the internal pressure under normal operating
conditions is generally considered to be equivalent to atmospheric
pressure. If the internal pressure becomes significantly higher (e.g.,
due to excessive charging), it could indicate a problem, and the
battery should be inspected.

For optimal performance and safety, it's essential to follow the
manufacturer's guidelines on charging and usage."


to wrĂłcmy do poprzedniego
- how hydrogen and oxygen gases in AGM batteries are absorbed back
into the electrolyte?

"In Absorbent Glass Mat (AGM) batteries, hydrogen and oxygen gases
produced during the charging process can be absorbed back into the
electrolyte through a process known as recombination. Here's how it
works:

1. Electrochemical Reactions: In a typical lead-acid battery, when the
battery is charged, lead sulfate (formed during discharge) is
converted back into lead and lead dioxide along with the release of
hydrogen and oxygen gases. The chemical reactions occurring are as
follows:
-At the positive electrode (lead dioxide), oxygen is generated.
-At the negative electrode (lead), hydrogen is generated.

2. AGM Design: AGM batteries use a glass mat separator that absorbs
and holds the electrolyte (sulfuric acid solution). This design allows
for the efficient transport of ions while minimizing the free space
where gases could accumulate.

3. Gas Recombination: The AGM battery is designed for the gas to
recombine within the cells. The gases produced can diffuse through the
porous separator and come into contact with the active materials. This
gas recombination occurs mainly through reactions with the lead and
lead dioxide:
The hydrogen gas (H2) reacts at the positive electrode to form
water with the oxygen (O2), and the oxygen gas reacts with the lead,
leading to the reduction of lead dioxide back to lead sulfate,
effectively recapturing the gases into usable forms within the
electrolyte.

4. Minimal Gas Escape: AGM batteries are sealed and designed to
minimize gas escape, which helps maintain the correct electrolyte
levels and reduces electrolyte loss. The gases are recombined in a way
that prevents significant buildup of pressure and maintains the
efficiency of the battery.

5. Ventilation: Although AGM batteries are spill-proof and designed to
minimize gas emissions, they typically include a pressure relief valve
that allows for safe venting of excess gas build-up if operating
conditions lead to excessive pressure.

By this process of recombination, AGM batteries manage gases produced
during the charging process effectively, maintaining their efficiency
and extending their operational life. "

Trzeba mieć wiedzę, aby wyciągnąć ją z Czata GPT :-)

Wydaje mi się, że ta rekombinacja jest istotna.
Ale chyba ją niezbyt dobrze opisał.

Zwiększone cisnienie może pomóc w rekombinacji ... ale przecież nie
jest zwiększone :-)

Czy ta szklana mata pomaga w rekombinacji?

-what pressure is inside VRLA batteries ?

"Valve-Regulated Lead-Acid (VRLA) batteries, which include sealed
lead-acid (SLA) and absorbed glass mat (AGM) batteries, are designed
to be maintenance-free and operate in a sealed environment. The
internal pressure of a VRLA battery is typically slightly above
atmospheric pressure, usually in the range of 1 to 2 psi (pounds per
square inch).

This slight overpressure is a result of the gases generated during the
charging and discharging processes. VRLA batteries are equipped with
safety valves that open when the internal pressure exceeds a certain
threshold, usually around 3 to 4 psi, to prevent damage and ensure
safety. This design prevents the escape of electrolyte while still
allowing for the release of gases, thus maintaining a balance of
pressure.

It's important to handle VRLA batteries properly to avoid any risks
associated with overpressure and gas release."

-how gasses recombination in lead acid batteries depend on pressure
and temperature ?

"In lead-acid batteries, gas recombination primarily involves the
gases hydrogen (H2) and oxygen (O2) generated during the charging
process, particularly in the presence of overcharging. The behavior of
gas recombination in lead-acid batteries is influenced by various
factors, including pressure and temperature.

Temperature Effects

1. Increased Reaction Rate: Higher temperatures generally increase
the rate of chemical reactions. The recombination of hydrogen and
oxygen into water (2H₂ + O₂ → 2H₂O) is faster at elevated temperatures
due to increased molecular kinetic energy.

2. Thermal Stability: High temperatures can lead to thermal runaway
conditions, which might increase the risk of gas evolution and
subsequent recombination issues. Excessive heat may also cause the
electrolyte to evaporate, leading to reduced performance or damage to
the battery.

3. Electrolyte Conductivity: Temperature affects the conductivity of
the electrolyte. Higher temperatures can improve conductivity, which
could enhance the efficiency of the electrochemical reactions,
including gas recombination.

4. Dissolution of Gases: At higher temperatures, the solubility of
gases in the electrolyte generally decreases, which could influence
how readily hydrogen and oxygen can recombine.

Pressure Effects

1. Increased Gas Density: Higher pressures increase the density of
the gases in the gas diffusion layer. This can increase the likelihood
of gas molecules encountering one another, potentially enhancing the
rate of recombination.

2. Partial Pressure: Gas recombination is also affected by the
partial pressures of hydrogen and oxygen. At higher pressures, the
partial pressures of the gases increase, which can drive the
recombination reactions according to Le Chatelier's principle.

3. Electrolyte Activity: Increased pressure can also affect the
electrolyte's activity and, as a result, the overall electrochemical
reactions occurring in the battery.

4. Safety Considerations: High pressure in a sealed lead-acid battery
can lead to dangerous conditions if gases are not recombined
efficiently. This could increase the risk of explosions if the battery
is overcharged.

Summary

In summary, both temperature and pressure significantly influence gas
recombination in lead-acid batteries. Higher temperatures generally
enhance the recombination rate but come with risks such as thermal
runaway. Higher pressures can also promote gas recombination, but they
introduce concerns regarding safety and the structural integrity of
the battery. Proper management of both factors is crucial for
optimizing battery performance and ensuring safety during operation."

Wie co pisze, czy pisze co wie ? :-P

J.
























J.