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19 Apr 2023 0 Comments

Why 7.4V battery is better than 5V battery?

“I bought another heated jacket for my wife when we had confronted with unexpected cold days. Yeah, we both love the battery-operated system. This jacket uses a 7.4V battery, which is something different from a 5V battery heated jacket I bought for myself.

Do you live in a bitterly cold area while you still want to put heavy layers of clothing away? That’s where a heated jacket comes in. It’s one style of cold-weather outerwear that uses heating technology to generate warmth quickly and effectively, making it more functional compared with a traditional down jacket.

 Battery-operated heated jacket

The battery-operated system is what heated jackets pride to provide quick, and long-lasting warmth to wearers. Not all heating systems are the same because of various batteries and heating elements. Today, we will share something important about the batteries and tell you why 7.4V batteries are better.

Why batteries are so important?

If you decide to prepare gear when you plan to engage in outdoor activities this winter, we’re guessing that a battery heated jacket get you more attention than an ordinary jacket.

Venustas heated jacket battery

First of all, a battery would not let you down in a harsh environment because it powers the heating elements for about 3-5 seconds and then distribute heat to the body. That’s what a down jacket cannot do. Also, the heating hours mainly depend on the batteries. So a long-lasting battery could extend the users’ outdoor time to get more enjoyment. Finally, most batteries with small size are easy to carry, which allows users don’t need to take many clothes.

Heated Jacket Batteries

Typically, most heated jackets use rechargeable batteries to provide power to the heating elements sewn into the fabric. And the batteries used in heated jackets vary in performance due to different materials, capacities, and voltage.

Battery material

It’s easy to find that lithium batteries are commonly used in most heated jackets. Normally, there are two types. One is lithium-ion batteries, and the other is lithium polymer batteries. Both batteries feature high energy density to store a lot of power. And they are rechargeable and possess a long lifespan, which is a guarantee of charging stability. Also, the most important thing is the safety guaranteed.

Battery Matterial

Battery type

Different manufacturers have different battery specifications to be compatible with different types of heated jackets. The main differences between these batteries are the voltage and capacity. Normally, heated jacket batteries come in three types on the market, like 5V, 7.4V, and 12V. And the 5V and 7.4V are mostly used by manufacturers.

7.4V VS 5V

Venustas battery

Actually, 5V batteries are first produced to power the heated jacket. And with the increasing development of technology, manufacturers develop 7.4V batteries to adapt to different types of heated jackets. Now let’s explore the difference between these two types of batteries and we take Venustas battery as an example.


Venustas has 3 types of batteries: 5V (1,000 mAh), 7.4V (5,000 mAh), 7.4V (4,800mAh). Although 5V has more capacity than 7.4V, there’s almost no obvious difference in heating hours. Both can work up to 8-9 hours on low level. (*5V batteries and 7.4V batteries cannot interchange)

Heating zones

7.4V battery VS 5V battery

5V and 7.4V can support different number of heating elements. Typically, the higher the voltage, the more energy is stored in the battery. Also, 7.4V has a USB output and a DC output while the 5V has two USB outputs. The DC output is designed for heated jackets, which can release more power to support 5-6 heating elements. And the 5V batteries only can support 3-4 heating panels.


Battery size

Compared with 5V batteries, 7.4V has a smaller size and weighs 198~200g, which make it difficult to notice when you put it in the pocket.


In summary, 7.4V batteries and 5V batteries have their own features to adapt to different heated jackets. And 7.4V is somewhat better than 5V because of more supporting heating elements, smaller size, and competitive working hours. We hope this article can give more insight into heated jacket batteries.

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