Includes all taxes
Ranwomen 40000mAh DC 7.4V Powerbank for Heating Vest Heated Jacket in Winter Portable 5V Battery for Cool Fan for Summer Cooling Vest Jacket
Products information
Capacity: 30000mAh/40000mAh
30000mAh Battery:Weight about 329g; Size about 4.53*2.6*1.03inch
40000mAh Battery:Weight about 398g; Size about 5.39*3.15*1.06inch
USB Output: 5V/2A
Type-C Input: 5V/2A
DC Output: 7.4V/3A
Recharge Time: about 6 Hours
Connector Type:Usbtypec
Charger Features:Universal
Power Mode:Battery Powered
Operating Voltage:≤36V
Battery Properties:Rechargeable Battery
Rechargeable Battery:Lithium Battery-Polymer
Product Description:
The use of batteries and cooling fans in hot summer
【Summer air conditioning fan battery】
The 5V2A USB output port can charge a 5V cooling fan. Let people who need outdoor work and exercise feel cool in summer and avoid heatstroke.
【 Fan speed setting】
The fan has 3 airflow modes, so you can adjust the airflow according to the working conditions. Low noise, can work continuously.
【Refrigeration fans are widely used】
suitable for workers, construction, gardening, hiking, walking, kitchen chefs, farmers, or warehouse workers. Avoid sweating and heatstroke.
A: What devices can this power bank charge?
Q: Our batteries can be used throughout the year.
1. Charging the heating suit: The special 7.4V DC port can quickly charge the heating suit and provide warmth.
2. Charging mobile phones and air conditioning fans: The 5V2A USB port can charge both mobile phones and 5V cooling fans.
Provide warmth in winter and keep cool in summer.
A: Is the battery 30000/40000 mAh?
Q: Yes, the capacity and description of the battery are consistent. The conversion rate of power banks is approximately 50-65%. The shorter the data cable, the better the quality and the higher the conversion rate.
A: Why does my battery drain quickly?
Q: Due to incomplete activation of the battery cells inside the battery. Receiving a brand new battery, there may be a phenomenon of virtual charge at the beginning, which is a normal phenomenon. For first-time use, it is recommended to fully use the existing battery level of the power bank to 0% when turned off, and then fully charge the power bank to 100%; Cycling the power bank 5 times can restore normal battery life.
A: What is the purpose of the indicator light?
Q: Press the button next to it to check the remaining battery level. Each indicator light displays 0% -25% capacity, flashing once indicates that the capacity is 0% and needs to be charged. If no device is connected within 30 seconds, it will automatically turn off the power.
A: Why won't my power bank charge?
Q: Since this product has a 5V/2A input, please try charging it with the data cable included in the package. It won't be compatible if you use a USB-C to USB-C cable, so please use our USB-A to USB-C cable for charging.
Package Content(Choose to purchase according to your needs)
Hot Tips:
Please disconnect the battery when not using the heated vest for safety use.
If you get the temperature so hot on the DC input, please change to the USB input.
Eliminate Heat and Unhappiness Refreshing Feeling
A cooling fan can utilize outdoor air to bring wind into the interior of clothes, achieving the goal
of quickly evaporating sweat and keeping the body cool and refreshing
Maintain coolness during work in high-temperature environments
The cooling fan has three adjustable wind speeds that can be adjusted according to the ambienttemperature. Quickly reduce body skin temperature and avoid heatstroke, etc.
Three speed adjustable cooling fan
*Brushed motor: Stronger Power
*3D Turbine blades: Increasing Wind Power
*Maximum fan speed 7800-r/min
*Light and small: A fan only 87g
*Cool down the body: Prevent heatstroke
*Gift giving options: Parents and friends
Supports combination with 5V2A mobile power bank
Cooling in hot summer
The lightweight and convenient nature of a cooling fan allows users to cool down without affecting their ability to work or exercise simultaneously. For example: construction workers, cleaning
workers, outdoor mountain climbing and fishing sports, landscaping workers.
Internal circulation fan Quickly cool down the body Make sweat evaporate instantly
Perfect gift for families, friends who need to keep cool in summer. A Heart-warming
Summer Gift for All Occasions
For Construction Worker, For Yard Work, Drive a Truck, Outdoor activities
BATTERY FORHEATED DEVICES
Fearless of the cold
Our power bank features three ports:
Port 1: Unidirectional output, USB-A. Can charge smartphones or heating garments that accept 5V/2A.
Port 2: Unidirectional input, USB-C. This port is exclusively for charging the battery and cannot output power externally.
Port 3: Unidirectional output, DC output port. Compatible with most heating garments on the market, delivering 7.4V/3A output for faster heating.
Heats jackets in winter, cools with fans in summer, and charges electronic devices.
LARGE CAPACITY BATTERY
Not only charger for smart devices,but also supply power to heating apparel.
Designed For Heated Apparels
Suitable for most USB powered devices and DC powered devices.
Two conversion cables for all electric heating products
①USB Port: Keep the temperature at a longer duration
②DC Port: Warm up faster and Get a higher temperature
Note:DC port 7.4V3A, specifically designed for heating clothes. Not compatible with the phone, the phone can be charged directly by inserting it into a 5V2A USB port.

Change USB Port To DC Port
DC to USB cable is a power cable that exchanges 5V USB port to 7.4V DC port, it will increase the temperature of the heated vest as the power output increases.
Note:DC port 7.4V3A, specifically designed for heating clothes. Not compatible with the phone, the phone can be charged directly by inserting it into a 5V2A USB port.
Long Lasting Battery
Huge capacity battery not only charge your heating apparels, also charge your mobile phone
USB/DC Dual Ports Battery Pack
The battery pack has two ports to cannect:
USB and DC port, each port have different power output


Payment Policy – BILLIONS BIRDS
At BILLIONS BIRDS, we are committed to providing a safe, secure, and seamless payment experience for our customers.
1. Accepted Payment Methods
We accept the following payment options:
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All payments must be completed in full at the time of purchase.
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BILLIONS BIRDS reserves the right to cancel or refuse any order if fraud or unauthorised activity is suspected.
Delivery Policy – BILLIONS BIRDS
At BILLIONS BIRDS, we are dedicated to delivering your orders safely and efficiently.
1. Order Processing
All orders are processed within 1–3 business days after payment confirmation. Orders are not processed or shipped on weekends or public holidays.
2. Shipping Times
Estimated delivery times vary depending on your location:
Domestic Shipping: 3–7 business days
International Shipping: 7–15 business days
Please note that delivery times are estimates and may vary due to customs procedures, carrier delays, weather conditions, or other unforeseen circumstances.
3. Shipping Costs
Shipping fees are calculated at checkout based on your location and selected shipping method. Any customs duties, taxes, or import fees are the customer's responsibility.
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Once your order has been shipped, you will receive a confirmation email with tracking details (if available) so you can monitor your package.
5. Delivery Issues
If your order is delayed, lost, or arrives damaged, please contact us within 7 days of the expected delivery date. We will work with the shipping carrier to resolve the issue as quickly as possible.
6. Incorrect Shipping Information
Customers are responsible for providing accurate shipping details at checkout. BILLIONS BIRDS is not responsible for orders shipped to incorrect addresses provided by the customer.
Refund Policy – BILLIONS BIRDS
At BILLIONS BIRDS, customer satisfaction is our top priority. If you are not completely satisfied with your purchase, we’re here to help.
1. Return Eligibility
You may request a return within 14 days of receiving your order. To qualify for a return:
The item must be unused, unworn, and in the same condition as received.
The item must be in its original packaging.
Proof of purchase (order confirmation or receipt) is required.
Certain items may not be eligible for return, including clearance items, gift cards, or personalised/custom products.
2. Non-Refundable Items
The following items are non-refundable:
Final sale or discounted items
Gift cards
Items damaged due to misuse, negligence, or improper care
3. Return Process
To initiate a return, please contact our customer support team with your order number and reason for return. If your return is approved, you will receive instructions for returning the item.
Unless the item is defective or incorrect, customers are responsible for return shipping costs.
4. Refund Processing
Once we receive and inspect your returned item:
We will notify you of the approval or rejection of your refund.
If approved, the refund will be issued to your original payment method within 5–10 business days.
Please note that banks or payment providers may require additional time to process refunds.
5. Damaged or Incorrect Items
If you receive a damaged, defective, or incorrect item, please contact us within 7 days of delivery and provide clear photos of the product and packaging. We will arrange a replacement or full refund at no additional cost.
6. Late or Missing Refunds
If you have not received your refund:
Check your bank account again.
Contact your credit card company or payment provider.
If the issue persists, don't hesitate to contact our support team for assistance.
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