Photo Gear

Keep your Hands Warm – Ocoopa Rechargeable Hand Warmer Review and Field Test

Unless you live in the tropics, cold hands and fingers and inevitable for photographers and others who engage in outdoor activities in the winter.

I used to buy disposable hand warmers, but those can get expensive if you use them enough, and they lose their potency over time.  I also feel much better about the environment using a rechargeable hand warmer like the Ocoopa 118D Eco Life.

In this blog post, I’ll discuss the performance of the Ocoopa 118D Eco Life Hand Warmer in the field, the size and weight, ease of use, and what’s included in the box.


ModeHeat SettingTemperature RangeBattery Duration
Single Sided HeatingLow95-107°F / 35-42°C12 hrs
Single Sided HeatingMedium107-118°F / 42-48°C8 hrs
Double Sided HeatingLow95-107°F / 35-42°C8 hrs
Double Sided HeatingMedium107-118°F / 42-48°C6 hrs
Double Sided HeatingHigh118-131°F /48-55°C4 hrs

Above is a table with the hand warmer performance information provided by Ocoopa.  There are five different modes / settings, each with different temperatures and battery durations.

I typically use the Double Sided Heating mode on a medium heat setting.  I’ve taken the Ocoopa hand warmer on multiple 1+ hour photography walks and had around 70% battery remaining with the warmer turned on the medium setting for the entire walk.

You can check the remaining battery life by double pressing the button on the unit.  The unit only provides 3 settings to indicate the remaining battery percentage: 100%, 70%, and 35%.

I typically wear light photography gloves for my nature hikes in the winter.  I put a Ocoopa hand warmer in each jacket pocket while hiking so when I’m not shooting, I can warm my hands in the pockets. 

I’ve been on several photography hikes with the Ocoopa hand warmer with the Temperatures between 23 – 30°F and my hands were kept warm throughout the hike.

I’ve also used the Ocoopa warmer in 0°F temperatures with heavier gloves while shoveling snow.  The high temperature setting was able to penetrate the gloves to give some additional warmth in the cold temperatures.

The unit does get pretty warm so you may want to start out with the low or medium setting with no gloves.

Ocoopa Rechargeable Hand Warmer Dimensions
Ocoopa Rechargeable Hand Warmer Dimensions

Size and Weight

The Ocoopa Hand Warmer is relatively small (4.09” L  x  2.11” W  x 1.14” H / 10.39cm L  x 5.36cm W  x  2.9cm H).  It only weighs 4.66 ounces / 132 grams.

I carry one warmer in each jacket pocket and really didn’t feel the extra weight from the warmers.  I also had room for the warmers and gloves in the jacket pocket when I had my gloves off.

Ease of Use

The Ocoopa Rechargeable Hand Warmer is operated with 1 button and has 1 USB-C port for charging.  The charger is simple to use with the different functions all controlled with the single button.

  • Long Press – turns the unit on / off
  • Single Press – changes heating modes
  • Double Press – checks the remaining battery level

You can charge your mobile phone and tablet with the hand warmer.  I was able to charge both my iPad Pro and iPhone 15 Pro with the Ocoopa hand warmer with the cable that came with my iPhone.   The phone and tablet didn’t charge with the cable and adapter that came with the Ocoopa hand warmer.

Ocoopa Rechargeable Hand Warmer Heating Modes
Ocoopa Rechargeable Hand Warmer Heating Modes

What’s in the Box?

  • Rechargeable Hand Warmer
  • USB to USB-C charging Cable
  • USB to USB-C converter
  • Instruction booklet
  • Cloth Pouch


I found the Ocoopa Rechargeable Hand Warmer to be a quality device that I use all the time in the winter for photography and other outside activities.  The price of the hand warmer on Amazon is $27.99 but watch for coupons and price reductions.  At the time I wrote this blog, there was a 40% coupon for the device on Amazon.

I also feel better about the environment using the rechargeable hand warmer instead of disposable warmers.

Written by Martin Belan

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