---
product_id: 43928058
title: "O2COOLTreva Fan 10 inch Battery or Electric Operated Indoor/Outdoor Portable Fan with ac adapter, Tilts 90 Degrees"
brand: "o2cool"
price: "KSh20052"
currency: KES
in_stock: true
reviews_count: 9
url: https://www.desertcart.co.ke/products/43928058-o2cooltreva-fan-10-inch-battery-or-electric-operated-indoor-outdoor
store_origin: KE
region: Kenya
---

# Dual power sources Compact & portable 2-speed fan O2COOLTreva Fan 10 inch Battery or Electric Operated Indoor/Outdoor Portable Fan with ac adapter, Tilts 90 Degrees

**Brand:** o2cool
**Price:** KSh20052
**Availability:** ✅ In Stock

## Summary

> 🌟 Beat the heat, wherever you go!

## Quick Answers

- **What is this?** O2COOLTreva Fan 10 inch Battery or Electric Operated Indoor/Outdoor Portable Fan with ac adapter, Tilts 90 Degrees by o2cool
- **How much does it cost?** KSh20052 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.ke](https://www.desertcart.co.ke/products/43928058-o2cooltreva-fan-10-inch-battery-or-electric-operated-indoor-outdoor)

## Best For

- o2cool enthusiasts

## Why This Product

- Trusted o2cool brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Quiet Operation:** Enjoy a peaceful environment with minimal noise.
- • **Travel-Friendly:** Easily folds for on-the-go convenience.
- • **Versatile Design:** Perfect for both indoor and outdoor adventures.
- • **Adjustable Airflow:** Tilt the fan for personalized cooling.
- • **Stay Cool Anywhere:** Experience refreshing airflow with dual power options.

## Overview

The O2COOL Treva Fan is a versatile 10-inch portable fan that operates on both AC power and batteries, offering powerful cooling with a quiet operation. Its compact, folding design makes it ideal for travel, while the adjustable tilt feature allows for directional airflow, ensuring comfort in any setting.

## Description

O2COOLTreva Fan 10 inch Battery or Electric Operated Indoor/Outdoor Portable Fan with ac adapter, Tilts 90 Degrees

## Features

- Dual power sources: AC Adapter (included) or 8-D batteries (not included)
- Powerful 2-speed 10-inch blade fan offers quiet cooling
- Grille pivots for directional air flow
- Treva - An o2cool brand.
- Compact folding design makes it great for travel, easy to carry and store and perfect for indoor or outdoor use

## Images

![O2COOLTreva Fan 10 inch Battery or Electric Operated Indoor/Outdoor Portable Fan with ac adapter, Tilts 90 Degrees - Image 1](https://m.media-amazon.com/images/I/91qVgo1yNIL.jpg)
![O2COOLTreva Fan 10 inch Battery or Electric Operated Indoor/Outdoor Portable Fan with ac adapter, Tilts 90 Degrees - Image 2](https://m.media-amazon.com/images/I/9162cqG7fhL.jpg)
![O2COOLTreva Fan 10 inch Battery or Electric Operated Indoor/Outdoor Portable Fan with ac adapter, Tilts 90 Degrees - Image 3](https://m.media-amazon.com/images/I/81rU4tWnrqL.jpg)

## Questions & Answers

**Q: Is this waterproof enough to be used in a shower window (where it will get splashed)?**
A: No.It is a great fan to have when the power goes off.  It isnt as powerful as needed but it is better than most I have seen. It does go through  a lot of batteries.

**Q: what is the trick for getting the batteries to all fit?**
A: put the end ones in first, the middle ones last

**Q: Does the fan come with the AC adapter**
A: No. I do not recommend it. It stopped working after a month.

**Q: What is the jack size/style to use a cigarette lighter cord with it?**
A: I don't know about the jack size because the 1st time I used this fan the switch stopped working. I don't recommend buying this fan. I couldn't return it because it was past the time I could.

## Customer Reviews

### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars







  
  
    Lots of air, very quiet and runs off of car/boat 12VDC
  

*by P***R on Reviewed in the United States on July 17, 2018*

I needed a fan that would run from 12VDC to use in my boat.  We have a Church service at the lake during the summer that I enjoy attending, but it can get really hot sitting in the boat tied to the dock for an hour!! I picked this unit especially because it is designed for 8 D cell batteries (12VDC) and not 6 (9VDC). It does not come with a cable for a cigarette lighter, but they are easy to find.  Very happy with the amount of air it moves and that it is quiet enough not to be noticed by others.  I have also installed the 8 D cell batteries now and useded it for the last two Sundays with only the internal batteries. Don’t know how long they will last but after approx 1 hour each Sunday and being stored in a boat locker (temps in upper 90 degree range) it is still running like new! I am very happy with this purchase and wouldn’t hesitate to buy another. Just make sure it uses 8 and not 6 batteries if you want to plug directly into a car or boat. ;-)Update: Our summer is over and we are back home, but this fan performed flawlessly and was a real life saver during Church at the river! Worked great with a cigarette lighter cable I already had with or without internal batteries, but it definitely stands up better with the weight of the installed batteries ;-). Definitely recommend these O2Cool fans!!!

### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars







  
  
    As described
  

*by M***R on Reviewed in the United States on January 11, 2024*

Love that you can have the fan tilt.  Air flow is great

### ⭐⭐⭐⭐ 4.0 out of 5 stars







  
  
    Not bad, but not great.
  

*by M***E on Reviewed in the United States on July 6, 2017*

This review is for O2COOL Fan 10 inch Battery or Electric Operated Indoor/Outdoor Portable Fan with ac adapter, Tilts 90 Degrees.The item arrives in a retail box and is as pictured. It is 13-1/2” high, 11” wide, and 4” deep.The fan head swivels up and down as shown in the item picture but can not be fully spun around. The pics I posted show the most down and up the head can be adjusted.This fan can be run on 8 D batteries or plugged into the wall with the included AC adapter. The adapter output is 12v DC @ .5A. The adapter input is 100v – 240v AC @ .2A. The cord is 5 feet long and the supply is UL rated. The power brick only need two blade outlet (no ground pin is required).According to the manufacturer FAQ page it is safe to leave the batteries in while running the fan from the AC adapter. “The fan will bypass the batteries and only use the adapter.” I tested this feature and it works fine.I have read a few complaints about other models of O2Cool fans, that the battery doors fall off easily, so this was the first thing I looked at when it arrived. The door does come of very easily but they provide two small screws to secure it so the door falling off this fan simply wont be an issue. On the downside if you plan to take this camping you'll need a small Phillips head screw driver on hand to change the batteries.The fan moves a good amount of air given it's small size. It definitely pushes a little more air when powered by the AC adapter then when powered by batteries.I bought this to use when the utility power goes out so battery performance means everything for my application. I tested my fan on high because I intend to sleep with in on as background noise. On this point, it makes a pleasant noise, but is a bit higher pitched then a normal box fan.The manufacturer claims on one set of batteries this fan can run up to 25 hours on high speed or up to 40 hours on low speed.For reference D batteries are spec'd at 1.5v but usually start a little above, in my case the Rayovac UltraPro Alkaline D batteries (ASIN: B000A6V8FU) started at 1.6v.There is no firm answer for when a battery is actually dead. But a rule of thumb for regular Alkaline batteries is when it reaches %70 of it's rated voltage it should be changed to prevent leaking issues. So our 1.5v D battery will be at the end of it's useful life at about 1.05v.After 25 hours of continuous use on high speed the batteries measured 1.15v. (0.95v when loaded by the fan on high speed.) So the batteries actually lasted the 25 full hours on high but are more or less fully discharged. It should be noted that the fan still ran but pushed much less air then when the batteries were new. High with dead batteries was more like low was with fresh ones. The batteries could probably be used for a bit longer but if pushed too far they may leak and destroy the battery contacts.It should be noted that rechargeable batteries typically have 1.2v instead of the 1.5v of a standard Alkaline. Since this uses 8 batteries the difference really adds up: 1.5v - 1.2v = .3v lower per cell, .3v X 8 cells = 2.4v total, 12v - 2.4 = 9.6v total. So when fully charged rechargeable batteries are used they will push less air then standard Alkaline counterparts because they have less voltage. Also, most rechargeable hold less energy than standard batteries so they run down quicker.I called O2 cool no less then five times during business hours to get more details about battery use. Four times I went straight to voice mail. The fifth time the operator picked up and transferred me to a voice mail box. So I gave up.So why four stars?Overall the build quality just feels cheap.The tilt-able head has a noticeable shake when it runs, not enough to make it rattle or walk away, but more then a well balanced fan should have.The AC adapter plug in the back doesn't always make good contact the first time you push the cord in, it usually takes two or three tries to make the fan run.I would have preferred some sort of plastic slide lock on the battery cover (rather then screws) so it doesn't require any tools to change the batteries.The instructions are easy to miss as they are printed on one of the inside box flap. And they don't really tell you much, if you have a question go to O2Cool's website FAQs as they are much more in depth.And bad service … answer your phone during business hours.All this said, I would buy the fan again, not because I really like it, but because there aren't that many alternatives to O2Cool when it comes to battery powered fans. While not perfect, it does work, and if I find a better battery powered fan in the future I will update this review and list it here.

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*Product available on Desertcart Kenya*
*Store origin: KE*
*Last updated: 2026-02-23*