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Batteries

Batteries are sources of chemical energy that are used in circuits to provide electrical energy for a wide range of useful devices. Any questions and answers regarding batteries or other power supplies would be welcome here.

4,818 Questions

What is a wet cell battery?

A wet cell battery is a type of electrochemical cell that uses a liquid electrolyte, typically a solution of sulfuric acid and water, to facilitate the movement of ions between the battery's electrodes. Commonly found in lead-acid batteries, wet cells are widely used in applications such as automotive starting and backup power systems. The liquid electrolyte allows for higher current capacity and greater energy density compared to dry cell batteries. However, they require careful maintenance and can be prone to leakage and spillage.

Are batteries used in trains?

Yes, batteries are used in trains, particularly in hybrid and electric train systems. They serve as energy storage solutions to provide additional power during acceleration and to recover energy during braking. Additionally, batteries can power onboard systems and equipment when the train is not connected to the electrified tracks. Some modern trains also utilize batteries to enhance efficiency and reduce reliance on fossil fuels.

What is the difference between cca and ah in battery?

CCA (Cold Cranking Amps) refers to a battery's ability to start an engine in cold temperatures, indicating how much current it can deliver at 0°F for 30 seconds while maintaining at least 7.2 volts. AH (Amp Hours), on the other hand, measures the battery's capacity to deliver a specific current over time, indicating how long the battery can power devices at a given amperage. Essentially, CCA focuses on short-term power output for starting engines, while AH measures overall energy storage and duration of use.

How can you tell when a ni-mh rechargeable battery has gone bad?

A Ni-MH rechargeable battery may indicate it's gone bad if it shows significantly reduced capacity, failing to hold a charge or only providing power for a short duration. Additionally, if the battery becomes excessively hot during charging or discharging, or if there are visible signs of leakage or swelling, these are clear signs of failure. Finally, if the battery voltage drops well below its rated capacity, it is likely no longer functional.

Why does 1991 Lexus ls400 try starting when you hook up the battery?

When a 1991 Lexus LS400 attempts to start upon connecting the battery, it may be due to a short circuit, a malfunctioning ignition switch, or a faulty starter relay. Additionally, it could indicate an issue with the electrical system, such as a stuck starter solenoid. This behavior may also result from a parasitic draw in the system, where components are improperly drawing power even when the ignition is off. It's essential to diagnose the exact cause to prevent further electrical problems.

What is the life of Lithium-ion Batteries for a Segway and how much to replace?

The lifespan of lithium-ion batteries for a Segway typically ranges from 2 to 5 years, depending on usage, charging habits, and environmental conditions. Replacement costs can vary widely, generally falling between $150 to $300, depending on the model and battery specifications. Regular maintenance and proper charging can help extend the battery's life.

What size battery for your Bulova watch 96T49?

The Bulova watch model 96T49 typically requires a battery size of 371. It's important to check the specific watch manual or consult a jeweler for confirmation, as battery requirements can vary slightly based on the model and production year. Always ensure to replace the battery with a compatible one to maintain optimal performance.

What is a high current battery?

A high current battery is designed to deliver a large amount of electric current for a short duration, making it suitable for applications that require rapid bursts of power, such as in electric vehicles, power tools, or high-performance electronics. These batteries typically have low internal resistance, allowing them to discharge quickly without significant voltage drop. Common types include lithium-ion and lead-acid batteries, which can provide high discharge rates while maintaining efficiency. High current batteries are essential in scenarios where immediate power is critical.

What are the applications of dry cell?

Dry cells are widely used in portable electronic devices such as flashlights, remote controls, and battery-operated toys due to their compact size and reliability. They are also utilized in medical devices, cameras, and small appliances where consistent power is needed. Additionally, dry cells are favored in applications requiring low to moderate power output, making them ideal for everyday household items. Their maintenance-free operation and long shelf life further enhance their practicality in various settings.

Is throwing old batteries in the garbage bad?

Yes, throwing old batteries in the garbage is bad because they contain harmful chemicals and heavy metals, such as lead, cadmium, and mercury, which can leach into the environment and contaminate soil and water. Proper disposal through recycling programs helps prevent environmental pollution and allows for the recovery of valuable materials. Many localities have specific guidelines for battery disposal, making it important to follow those regulations.

Where can you get Werker WKA6-14T3 batteries or an equivalent battery?

You can find Werker WKA6-14T3 batteries or equivalent options at various retailers, including online platforms like Amazon, eBay, or specialized battery websites. Local electronics stores or automotive supply shops may also carry similar batteries. Additionally, checking with battery manufacturers or distributors can help you find compatible alternatives.

Are alkalis found in car batterys?

Yes, alkalis are found in certain types of car batteries, particularly in alkaline batteries, which use an alkaline electrolyte such as potassium hydroxide. However, most common car batteries, like lead-acid batteries, use sulfuric acid as their electrolyte rather than an alkaline solution. In summary, while alkalis can be present in some battery types, they are not typically found in standard car batteries.

What was the first device to be designed for use with chargeable batteries?

The first device designed specifically for use with rechargeable batteries was the nickel-cadmium (NiCd) battery, introduced in the late 19th century. However, the first commercially successful application of rechargeable batteries was in the 1960s with the introduction of the rechargeable electric drill, which utilized these batteries. This innovation paved the way for the development of various portable electronic devices that relied on rechargeable battery technology.

How long do the batteries last on mobility scooters?

The battery life of a mobility scooter depends on the model, battery type, and usage. On average, fully charged batteries last between 8 to 20 miles per charge. Smaller travel scooters usually last around 8–10 miles, while larger or heavy-duty models can reach up to 25 miles.

With proper care—like regular charging, avoiding over-discharge, and storing in moderate temperatures—batteries can last up to 18–24 months before needing replacement.

How do you change and measure batteries?

To change a battery, first ensure the device is powered off, then locate the battery compartment, which may require a screwdriver or a simple slide mechanism. Remove the old battery, noting its orientation, and insert the new battery in the same position. To measure a battery's voltage, use a multimeter set to the appropriate DC voltage range, connecting the red probe to the positive terminal and the black probe to the negative terminal. A reading close to the battery's rated voltage indicates it is functioning well, while a significantly lower reading suggests it may need replacement.

When charging a battery what is high impedance?

High impedance in the context of charging a battery refers to a condition where the resistance to current flow is elevated. This can limit the amount of current that can be supplied to the battery, potentially slowing down the charging process. High impedance can occur due to various factors, including poor connections, degraded components, or using a charger that is not well matched to the battery's requirements. In general, lower impedance is preferred for efficient charging.

How was the battery used in the Industrial Revolution?

During the Industrial Revolution, the battery played a crucial role in powering early electrical devices and facilitating advancements in communication and transportation. Notably, the invention of the voltaic pile by Alessandro Volta in 1800 provided a reliable source of direct current, which was essential for experiments in electromagnetism and the development of telegraphs. Additionally, batteries enabled the operation of electric machines, contributing to innovations in manufacturing processes and enhancing productivity in various industries. This period marked the beginning of the transition to electrical power, laying the groundwork for future technological advancements.

Can i charge 14.4 volt craftsman drill battery on 18 volt craftsman charger?

No, you should not charge a 14.4-volt Craftsman drill battery on an 18-volt Craftsman charger. The voltage difference may cause damage to the battery or charger, potentially leading to overheating or other safety hazards. It's best to use a charger specifically designed for the voltage of your battery to ensure safe and effective charging.

How long last 4000mAh battery?

The duration a 4000mAh battery lasts depends on the device's power consumption. For example, if a smartphone consumes about 400mA per hour, the battery could last around 10 hours (4000mAh ÷ 400mA). However, if the device uses more power, like 800mA, the battery would only last about 5 hours. Therefore, actual usage time varies based on the specific device and its usage patterns.

How long will a 12v 9amp battery last on a 12v 615mA fish finder?

To calculate how long a 12V 9Ah battery will last when powering a 12V 615mA fish finder, you can use the formula: battery life (in hours) = battery capacity (in Ah) / current draw (in A). First, convert 615mA to Amps, which is 0.615A. Then, divide the battery capacity (9Ah) by the current draw (0.615A), giving you approximately 14.63 hours. Therefore, the battery will last about 14.6 hours under ideal conditions.

What does AAA motor club stand for?

AAA stands for the American Automobile Association. It is a federation of motor clubs throughout North America, providing services such as roadside assistance, travel planning, and insurance. Founded in 1902, AAA aims to promote safe and efficient travel for its members.

Why does small torch only need two batteries?

A small torch typically only needs two batteries because it is designed for low power consumption and efficiency. Two batteries in series provide enough voltage to power the torch while maintaining a compact size. This configuration allows for a lightweight and portable design, making it convenient for everyday use. Additionally, using fewer batteries can reduce cost and weight without significantly sacrificing performance.

What kind of battery do I need for my Swiss army victornox field watch?

For a Swiss Army Victorinox Field Watch, you typically need a specific type of battery, often a quartz cell like the Renata 371 or similar, depending on the exact model. It's best to check the watch's manual or the manufacturer's specifications for the precise battery type. If you're unsure, a local jeweler or watch repair shop can help you find the correct replacement.

Interior lights stays on and runs the battery down?

If your car's interior lights stay on, it can drain the battery over time. Common causes include faulty door switches or misaligned light switches. Inspect and repair these components promptly to prevent battery depletion.

What all batteries will and Energizer wall Charger charge?

The Energizer wall charger is designed to charge various types of rechargeable batteries, primarily NiMH (Nickel-Metal Hydride) and NiCd (Nickel-Cadmium) batteries. It typically accommodates AA and AAA sizes, though some models may also charge C, D, and 9V batteries. Always check the specific model specifications to ensure compatibility with the batteries you intend to charge.