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FAQs on Portable Battery Packs: Everything You Need to Know

Portable Battery Packs: Everything You Need to Know

Winter can be a challenging season for people who live in colder regions. The icy winds and freezing temperatures can make even the simplest of outdoor activities seem impossible. That’s where heated apparel comes in handy. You can stay warm and comfortable during the coldest months of the year with these products, which range from heated jackets to gloves and socks. They come with battery-powered heating elements that can keep you toasty for several hours at a time. Therefore battery packs are an essential part of heated apparel, as they provide the necessary power to keep you warm and comfortable. The operation of heated apparel relies on battery packs, and there are some questions that arise frequently. This article will answer some of the most commonly asked questions about heated apparel battery packs.

How to Remove Battery from Heated Jacket?

Heated jackets come with a battery-powered heating system that can be disconnected for cleaning or replacement. Some people may find it difficult to remove the battery from a heated jacket. We’ll explain how to remove the battery from a heated jacket safely and efficiently.

The first step in removing the battery from a heated jacket is to turn off the jacket and unplug it from any power source. By doing so, you avoid activating the jacket’s heating system while removing the battery.

Next, locate the battery compartment, which is usually located on the interior of the jacket near the waist or chest area. It’s usually behind a zipper or Velcro closure. For Sailwind’s heated jacket, the battery is placed at the waist and can be accessed through a zipper on the inside of the jacket. To remove the battery controller from Milwaukee heated jacket, push in the release buttons and pull the battery pack away.

After removing the battery, store it in a cool, dry place away from direct sunlight and moisture. This will help prolong the battery’s life and ensure it functions correctly when reinserted into the jacket.

Can I Interchange Batteries from Different Heated Jackets and Vests?

Yes, you can interchange batteries from different heated jackets and vests in most cases, as long as they are compatible with each other. For example, Sailwind’s portable batteries are compatible with most heated jackets and mobile devices.

Although some batteries may not work with certain devices or require a specific type of charger, such as Milwaukee heated jackets. So you cannot use M18 batteries on M12 heated jackets as they are only compatible with M18 tools. The battery may not provide the required power output for the jacket or vest. This may result in reduced or uneven heat distribution, reduced battery life, or damage to the heating elements, as well as potential safety hazards.

Always follow the manufacturer’s instructions for removing, replacing, and charging the battery to ensure maximum performance and safety.

How to Put Out Lithium Battery Fire?

Lithium Ion batteries are used across homes and businesses all over the world because they’re lighter, stronger, and more efficient than traditional lead-acid batteries. These are commonly used in everything from EVs to phones. However, there have been instances where Lithium Ion batteries have failed and quickly caught fire – the most famous being Samsung having to recall its Galaxy 7 phones, which were banned from airports because of their fire risk.

There’re five classes of fires (A, B, C, D, K), and most people would probably guess lithium batteries are either C(electrical) or D(combustible metal). However, they’re not class D since they do not contain actual metallic lithium. They don’t belong to class C either. Lithium-ion batteries are class B (flammable liquid) because they utilize liquid electrolytes to create a conductive pathway.

In the case of a lithium battery fire, it’s essential to act quickly and effectively to prevent the fire from spreading and causing harm. There are several ways to extinguish it based on the size and type of battery, like standard dry chemical or ABC extinguisher. Small lithium batteries contain very little lithium so you can douse them with water. To put out large lithium-ion battery fires, use a foam extinguisher containing CO2, powder graphite, ABC dry chemical, or sodium carbonate.

If you cannot extinguish the fire, let the battery burn out in a controlled way. Prevent the fire from spreading by soaking the surrounding area with water.

Can I Bring Batteries on a Plane?

Yes, you can bring batteries on a plane, but there are specific regulations and restrictions that you need to be aware of. Here are some guidelines to follow when bringing batteries on a plane:

  1. Carry-on vs. checked baggage: Most batteries, including lithium-ion batteries (such as those used in laptops, drones, cameras, GoPros, vapes, and heated jackets), are allowed in carry-on baggage and checked baggage, but you must pack spare batteries in carry-on luggage only. Loose batteries are not permitted in checked baggage.
  2. Battery capacity: Lithium-ion batteries with a capacity of up to 100 watt-hours (Wh) are allowed in carry-on baggage and checked baggage. Lithium batteries with more than 100 Wh are only allowed in carry-on bags.
  3. Quantity limits: You can bring up to two spare batteries with a capacity of up to 100 Wh each in carry-on baggage.
  4. Proper packaging: The terminals must be covered or insulated to prevent contact with metal objects. Spare batteries must be individually protected in order to avoid contact with other batteries, metal objects, or devices that may activate them.

The TSA’s “Can I Bring” search tool has more information if you’re still not sure whether you can bring your battery on planes.

Lastly, battery regulations for air travel can vary from country to country. Some countries may have stricter rules than others, for example, some countries may restrict the transport of lithium-metal batteries or batteries containing certain chemicals. Different airlines may have their own specific regulations or policies regarding batteries. So it’s a good idea to check with your airline before you travel in order to avoid any issues or delays at the airport.

How Long do Batteries Last in a Single Charge?

Battery-powered tools have come a long way in the last decade, moving to lithium-ion batteries from older nickel-cadmium ones. This transition proved to be a great success thanks to its improved power and runtime, as well as its significant weight reduction. Regardless of what type of battery-powered device you use, how long lithium-ion batteries last on a single charge remains our most-asked question from readers.

The lifespan of a battery can vary depending on many factors, such as the type of battery, its capacity, the device it’s used in, and how often it’s used. Here are some estimates of how long batteries can last in some everyday use cases:

  1. Smartphones: On average, a smartphone battery can last less than a day or one day under normal usage before needing to be recharged. 
  2. Laptops: On average, a laptop battery can last between 4 to 8 hours under normal usage before needing to be recharged. However, Apple’s laptops with Arm chips are much more durable, doubling or tripling the runtime of typical laptops in some cases.
  3. Smartwatches: On average, a smartwatch battery can last between 1 to 3 days before needing to be recharged. Heavy usage can significantly reduce battery life, such as using GPS or fitness tracking.
  4. Heated Jackets: The battery life of a heated jacket or vest on low heat can last between 4 to 6 hours. However, a heated jacket from a high-quality brand should have an 8-9 hour runtime. In our testing, Sailwind’s heated jacket is one of the most durable models on the market, capable of 9 hours of runtime on low.
  5. Golf Carts: Lithium-ion batteries are becoming more common in golf carts due to their lighter weight and longer lifespan. On average, electric golf cart batteries last around 100 miles on one charge or between 135 and 180 minutes of full-power runtime.

It’s worth noting that the battery life of devices can also be affected by environmental factors, such as temperature and humidity. Extreme temperatures can cause batteries to drain faster or even fail, whereas high moisture can cause corrosion and damage. Following the manufacturer’s instructions for charging and maintaining batteries is imperative to ensure the longest possible lifespan.


In conclusion, battery packs are essential for powering a wide range of devices, from smartphones and laptops to heated apparel and golf carts. And, for anyone wanting to stay warm and comfortable during the cold winter months, heated apparel is essential.

However, it’s crucial to have a clear understanding of how these battery packs work and how to care for them properly. By following the manufacturer’s instructions and taking precautions to ensure the battery’s safety, you can extend the life of your battery packs and minimize the risk of accidents. Remember to keep in mind that batteries can last for varying amounts of time, depending on the device and usage patterns. Also, remember to monitor the battery pack’s temperature while in use and avoid exposing it to extreme temperatures or moisture. Always use the appropriate charger and avoid overcharging or misusing the battery. This can damage the battery and pose a safety hazard.

If you have further questions or concerns about heated apparel battery packs, don’t hesitate to contact the manufacturer. With the right knowledge and precautions, you can enjoy the warmth and comfort of heated apparel with confidence and peace of mind.

How to Use Heated Jackets

Batteries Carried by Airline Passengers FAQ

Safely Packing Batteries for Your Trip

What Can I Bring on Planes?

How Long do EV Batteries Last?

Lithium-Ion vs Lead Acid Battery Life


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