Page 5 - Ready for IMPACT Battery Blog
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- January 13, 2026
Have you ever looked for a new battery for your car or boat? If so, you probably saw a bunch of letters and numbers on the label. You might see CCA or Ah, which are common. But then you see RC and start to wonder. Many people ask, what does RC mean on a battery?
If that sounds like you, you are in the right place. RC stands for Reserve Capacity, and it is a very important rating. It tells you a lot about the battery’s power and stamina.
Understanding the RC rating is key to keeping your vehicle reliable. It is especially important in an emergency, like if a part called the alternator stops working.
This guide will explain everything. We will talk about what RC is, how it is measured, and how it compares to other battery ratings. By the end, you will know how to pick the perfect battery for your car, truck, or boat.
What is Reserve Capacity (RC)? The Stamina of Your Battery
So, what is Reserve Capacity? In simple terms, it is a measure of a battery’s stamina. It tells you how long a fully
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- January 03, 2026
Lithium batteries are everywhere. They power our phones, laptops, and even our cars. We count on them every single day.
But have you ever wondered what happens to them in the cold? It is a very important question. So, can lithium batteries freeze?
The short answer is yes, they can. But it is a bit more complex than you might think. Cold weather can hurt your batteries in ways you might not expect. This guide will show you how to keep them safe when the temperature drops.
What Is a Lithium Battery?
Before we talk about the cold, let's understand what a lithium battery is. Think of it as a special, rechargeable power sandwich. It is designed to be very light but hold a lot of energy.
This is why they are used in so many things, from small electronics to big power tools. They are much more powerful than the old-style batteries you might have used in toys.
These batteries can be charged again and again. This makes them great for the environment and for your wallet. They have changed the way
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- January 03, 2026
Have you ever wondered how long your car's lights would stay on if the engine stopped at night? It’s a scary thought, but your car has a feature for this kind of emergency. This safety net is called reserve capacity.
So, what is reserve capacity on a battery? Think of it as your battery's stamina. It is the number of minutes a full 12-volt battery can power your car's essential parts before it runs out of juice. This is measured with a 25-amp load at a cozy 80°F.
Understanding this battery rating is super important. It matters for anyone who drives a car, sails a boat, or uses a vehicle that needs long-lasting power. This guide will explain everything in simple terms.
Decoding Battery Reserve Capacity (RC): What the Numbers Mean
Now that you know the basic definition, let's look at what those numbers on your battery mean. The reserve capacity, or RC, is a simple number that tells a big story about your battery’s power.
The RC number you see is always measured in minutes. This number comes
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- January 03, 2026
Ever plug in a lithium battery and get… nothing? No charging, no progress, just that sinking feeling that the battery might be done for. Most people jump straight to “it’s dead,” but that’s usually not what’s actually happening.
In many cases, charging stops due to built-in safeguards. This includes charger mismatch, temperature limits, or voltage protection. The battery looks dead, but it’s really just refusing to charge under the current conditions.
This guide breaks down 11 common reasons lithium batteries stop charging, and ways to figure out what’s going on. It also covers quick checks to help decide when a battery is worth fixing and when to replace it.
What “Lithium Battery Not Charging” Means
When someone says a lithium battery is “not charging,” it doesn’t point to one single problem. That phrase is used for wildly different situations, and each one signals another kind of issue happening behind the scenes.
In vehicle setups like cars, motorcycles, and powersports, the problem
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- December 27, 2025
Are you trying to power your RV, boat, or off-grid cabin? If so, you have a big choice to make. You need to pick the right battery system voltage.
For a long time, 12-volt systems were the only real option. They are still super common. But now, 24-volt systems are becoming very popular, too. This is especially true for bigger setups with more power needs.
This guide will help you understand the big 12v vs 24v debate. We will look at what makes them different. By the end, you will know exactly which one is perfect for you.
Understanding the Core Concepts: Volts, Amps, and Watts
Before we compare the two systems, let's learn some simple words. These words are volts, amps, and watts. Knowing them will make everything else much easier to understand.
Think of electricity like water in a hose.
Voltage (V) is like the water pressure. It is the force that pushes the electricity through the wires. So, a higher voltage means more push.
Current (A), or amps, is like the size of the hose. It tells
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- November 04, 2025
When people ask, “automotive batteries are an example of which hazard class”, they usually mean lead-acid or lithium. That’s where things get confusing. Some say Class 8, others mention Class 9 without any clear reason. If you choose the wrong one, you risk shipment delays, fines, or total package rejection under DOT shipping rules.
Lead-acid automotive batteries are classified as Hazard Class 8, UN2794. For Lithium-ion batteries, which power newer vehicles and EVs, are Hazard Class 9, UN3480 or UN3481.
This guide will help you to learn how to label batteries correctly, follow DOT and IMDG rules, and avoid mistakes that cause rejections. Keep reading to understand safe packaging, handling rules, and the exact codes for every battery type.
Why Automotive Batteries Are Regulated as Hazardous Materials
Automotive batteries are built with reactive materials that can become dangerous in storage, use, or transport conditions. Lead-acid batteries contain sulfuric acid, which corrodes skin, metal,
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- October 20, 2025
Truck owners rely on their battery every day, but rarely think about it until something goes wrong. You load up before sunrise, ready to haul across town. But when you turn the key, nothing happens. Moments like this make you wonder how long do truck batteries last, and if failure could’ve been avoided.
Truck batteries typically last 3 to 5 years, but that range changes with battery type, vehicle use, climate, and maintenance habits. Fleets, heavy-duty trucks, and deep-cycle setups may all age differently.
In this guide, we’ll look at how truck batteries perform in real-world use. We’ll explain what MCA and CCA actually measure. You’ll see the signs that a battery is wearing out. Also, we’ll break down when replacement makes sense based on use, climate, and performance.
What Factors Affect Truck Battery Lifespan?
Truck batteries don’t fail without reason. Their lifespan depends on how you drive, where you drive, and how well they’re maintained. If a battery keeps dying too soon, the real
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- October 18, 2025
You’ve probably noticed two ratings on battery labels - MCA and CCA - and wondered what they actually mean. If you’re comparing a marine battery to an automotive one, those letters can be confusing.
MCA (Marine Cranking Amps) and CCA (Cold Cranking Amps) both measure how much current a battery can deliver to start an engine, but they’re tested under different conditions. One’s built for chilly mornings, the other for milder marine environments.
Think of it as the same athlete running two races - one in winter, one in spring - to prove endurance. In this guide, we’ll decode both ratings, show how they relate, and help you choose the right one for dependable power every time.
Understanding What a Cranking Amp Rating Measures
Every time you turn the key, your starter motor draws a powerful burst of electricity from the battery. That surge of current (amps), delivered over roughly 30 seconds, is what cranking amps measure. It tells you how much power the battery can push out while keeping
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- October 17, 2025
You’re heading to work and hop in the driver’s seat. The engine clicks, but nothing happens. In the garage, there’s a spare marine battery from your boat. It’s charged, heavy, and tempting. Suddenly, you wonder, can you use a marine battery in a car when the original one dies?
Yes, you can use a marine battery in a car, but only as a backup. It can start the engine and support the alternator. But its deep-cycle design isn’t made for short, powerful bursts like a car battery.
In this guide, we’ll break down battery chemistry, cold cranking amps, and deep cycle functions. You’ll learn when this battery swap makes sense and when it could hurt performance or safety.
How a Car Battery Works Inside the Vehicle Electrical System
A car battery is the first thing your engine depends on. It sends a strong surge of power to the starter motor, which cranks the engine and gets it running. That’s why car batteries are built for high cranking amps, not long-term output.
Once the engine starts, the battery
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- October 15, 2025
Suppose you’re at the dock, getting ready to change the battery in your fishing boat or weekend cruiser. That moment makes you ask a common question: how much does a marine battery weigh, and why should it matter? It’s not just about lifting. Battery weight affects how your boat runs, fits, and handles energy.
Marine batteries usually weigh between 30 and 80 pounds, based on chemistry, BCI group size, and capacity. That weight affects runtime, how the battery fits inside your boat, and how easily you can move it.
This guide explains how battery weight connects to chemistry, group size, and amp-hour ratings. It also compares AGM and LiFePO₄ designs and shows how weight reflects stored energy. You’ll learn how that weight affects runtime, safety, and fit.
Why Marine Battery Weight Matters for Every Power Setup
Battery weight affects more than lifting or storage. It plays a key role in how your system performs. On the water or the road, weight impacts balance, safety, and how your battery
