One of the most common questions people ask before buying a heated vest is simple: “How long does the battery last?” Whether you're commuting in the morning chill, hiking through mountain trails, or working outdoors, battery life makes or breaks your heated gear experience.
In this article, we break down exactly what affects battery life, what you should expect in real-world usage, and how to maximise performance for your GOKOZY heated vest.

Why Battery Life Matters
Heated vests are meant to offer consistent comfort. But if your battery runs out halfway through your commute or hike, the benefit disappears. That's why knowing what controls battery performance—and how to get the most out of it—is essential for anyone relying on heated gear.
What Impacts Battery Life in Heated Vests?
1. Heat Setting
The higher the heat setting, the faster the battery drains. Here's a general guide based on a 10,000mAh battery:
- Low (35–40°C): 8–10 hours
- Medium (45–50°C): 5–7 hours
- High (55–60°C): 3–5 hours
Most users start on high for 10–15 minutes, then drop to medium or low to conserve power while staying warm.
2. Battery Capacity
Heated vests typically use 5V or 7.4V rechargeable batteries ranging from 5000mAh to 20000mAh. The higher the capacity (mAh), the longer the runtime. GOKOZY uses premium-grade lithium-ion batteries for safe, long-lasting performance.
3. Outside Temperature
Cold conditions naturally reduce battery efficiency. Wind, humidity, and freezing air can cause faster drain, especially if your vest isn’t layered properly to retain warmth.
4. Usage Behaviour
- Leaving your vest on high heat continuously
- Wearing it as an outer layer exposed to wind
- Failing to charge the battery fully before each use
All of these can significantly shorten runtime.

Real-World Examples
Commuter: 2 hours of daily use (1hr AM + 1hr PM) on low setting can last up to 4–5 days.
Outdoor worker: 6–8 hours of continuous use on medium is achievable with a 10,000mAh battery.
Hiker: Start high, then switch to low. Average runtime: 6–9 hours depending on terrain and weather.
How to Maximise Your Heated Vest’s Battery Life
✅ Start Warm, Then Lower the Setting
Turn on high for the first 10 minutes, then switch to low once your body is warm. Trap heat by wearing a windproof outer shell over the vest.
✅ Carry a Spare Power Bank
Because GOKOZY heated vests use USB-powered batteries, swapping out is quick and easy. This is especially useful for long trips, outdoor work, or multi-day adventures.
✅ Charge Fully Every Time
Always charge in room temperature. Avoid partial or overnight overcharging to extend battery life over time.
✅ Store the Battery Separately
When not in use, remove the battery and store it in a dry, moderate place. Never leave it connected in cold environments.
Frequently Asked Questions
Can I use my own USB battery?
Yes—as long as it provides 5V/2A or 5V/3A output. Always check compatibility before use.
Does a higher mAh mean more heat?
No. It means the same level of heat can run for longer. Heating level is determined by voltage, not capacity.
Can I extend battery life during wear?
Yes. Use heat cycles: turn off the vest when you're in the sun or moving briskly, then restart when standing still or sitting.

Final Thoughts
Battery life in a heated vest depends on usage, settings, and outside factors—but with the right routine, it’s easy to enjoy hours of consistent warmth. GOKOZY heated vests are engineered for all-day comfort, whether you’re walking the dog or hiking through snow.
Don’t just guess—gear up smart. Discover the full GOKOZY heated vest range and choose warmth that lasts as long as you do.