When choosing a heated vest, one of the biggest questions is: How long does the battery really last? Many brands exaggerate. But real battery life depends on voltage, mAh capacity, heating zones, and temperature settings. Below is a clear, realistic guide so you know exactly what to expect.
🔋 What Affects Heated Vest Battery Life?
- Battery Capacity (mAh) – Larger capacity = longer runtime
- Voltage (V) – Higher voltage delivers stronger heat but consumes power faster
- Heating Zones – More zones = more energy usage
- Heat Level – High/Medium/Low dramatically changes runtime
To help you compare, here is the actual performance data from our two popular heated vest models.
🔥 12V Heated Vest — 15 Heating Zones (20,000mAh Battery)
This model is designed for users who need powerful heating and longer coverage. With a large 20,000mAh battery and 12V system, it delivers strong, deep warmth.
- Max Runtime: Up to 12 hours
- High: 5–6 hours
- Medium: 7–8 hours
- Low: 11–12 hours
- Heating Elements: 15 carbon-fiber zones (left & right pockets, collar, upper back, lumbar area)
- Full-body warmth with added support for the lower back
🔥 7.4V Heated Vest — 11 Heating Zones (10,000mAh Battery)
This version is lighter and more suitable for daily use or moderate outdoor activities.
- Max Runtime: Up to 7.5 hours
- High: 3.5 hours
- Medium: 5.5 hours
- Low: 7.5 hours
- Heating Elements: 11 zones for balanced warmth
📌 Why Do Different Models Last Different Amounts of Time?
Because they are designed for different needs:
- 12V model: higher voltage = stronger heat, larger battery to support longer usage
- 7.4V model: lower voltage = energy-efficient everyday warmth
If you work outdoors, ride motorcycles, or stay in freezing temperatures: Choose the 12V vest.

If you want a daily lightweight heated vest for commuting, dog walking, or errands: Choose the 7.4V vest.
📍 Final Thoughts — What’s the “Normal” Battery Life?
Realistic heated vest runtime is:
- High: 3–6 hours
- Medium: 5–8 hours
- Low: 7–12 hours
Our GOKOZY heated vests fall exactly within — or above — these real expectations.
Whether you choose 12V or 7.4V, GOKOZY ensures you get accurate, honest battery performance and dependable warmth whenever you need it.