---
product_id: 513222952
title: "OCOOPABattery Replaceable Hand Warmers Rechargeable, Modular Handwarmer Portable Charger, 4 Levels Electric Heater, 10000 mAh Battery, Up to 15hrs, Perfect for Golf, Hunting Gifts Men- Union 5s"
brand: "ocoopa"
price: "€ 74.88"
currency: EUR
in_stock: true
reviews_count: 13
url: https://www.desertcart.ie/products/513222952-ocoopabattery-replaceable-hand-warmers-rechargeable-modular-handwarmer-portable-charger-4
store_origin: IE
region: Ireland
---

# 10000mAh Battery 15+ Hours Heat 4 Heat Levels OCOOPABattery Replaceable Hand Warmers Rechargeable, Modular Handwarmer Portable Charger, 4 Levels Electric Heater, 10000 mAh Battery, Up to 15hrs, Perfect for Golf, Hunting Gifts Men- Union 5s

**Brand:** ocoopa
**Price:** € 74.88
**Availability:** ✅ In Stock

## Summary

> 🔥 Stay Warm, Stay Charged! 🔋

## Quick Answers

- **What is this?** OCOOPABattery Replaceable Hand Warmers Rechargeable, Modular Handwarmer Portable Charger, 4 Levels Electric Heater, 10000 mAh Battery, Up to 15hrs, Perfect for Golf, Hunting Gifts Men- Union 5s by ocoopa
- **How much does it cost?** € 74.88 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ie](https://www.desertcart.ie/products/513222952-ocoopabattery-replaceable-hand-warmers-rechargeable-modular-handwarmer-portable-charger-4)

## Best For

- ocoopa enthusiasts

## Why This Product

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

## Key Features

- • **Swap & Go:** Easily replace the battery for uninterrupted warmth!
- • **Perfect Gift:** An ideal present for tech enthusiasts and outdoor lovers.
- • **Rapid Heating:** Experience warmth like never before with a larger heat surface.
- • **Stylish & Functional:** Patented design that combines aesthetics with practicality.
- • **Ultimate Versatility:** Use as a hand warmer or a portable charger!

## Overview

The OCOOPA Union 5s is a revolutionary modular hand warmer featuring a 10000mAh rechargeable battery that provides up to 15 hours of warmth. With four adjustable heat levels and a stylish design, it doubles as a portable charger, making it the perfect gadget for outdoor activities and a thoughtful gift for loved ones.

## Description

Full description not available

## Features

- Detachable Battery & Heating case. The world's first modular rechargeable hand warmer, the Ocoopa Union 5s, is composed of a Union core- 10000mAh battery bank and a Union case- heating housing. It enables you to replace the battery or heat casing as needed. In only three steps, you can alternate with a fully charged battery. Refill your hand warmer in seconds for another 15 hours of warmth. Swap and go.
- Heat that lasts for 15+ hours. Ocoopa Union 5s is equipped with a 21700 battery cell with a capacity of 10000mAh, leading in a 20% improvement in energy density and minor weight increases. It can deliver heat for up to 15 hours. Accompany you throughout the day.
- Faster Heat. Larger surface. Feel a comfortable warmth like you've never felt before. The U5s features a uni-body high grade brushed aluminum casing with a 30% bigger heat surface than previous. Spread the ideal warmth from your palm to your fingertips. You can always have your comfortable heat with four temperature ranges ranging from 145°F to pick from.
- Your must-have gadget for every season. During the summer, remove the Union case and use the Union core as a 10000 mAh USB-C portable charger. U5s is both a hand warmer and a portable power source!
- Patented original design, stylish look, and practical function make U5s ideal gifts for tech lovers, sports or outdoor fanatics, and anyone you love. Bring the warmth from their fingertip to their heart.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Color | U5s Pack(2 union core+1 union case) |
| Size | S |
| Material type | Plastic |
| Included components | battery |
| Batteries included? | Yes |
| Brand | OCOOPA |
| Department | Unisex |
| Manufacturer | Shenzhen Street Cat Technology Co., Ltd |
| Item model number | U5s |
| Package Dimensions | 14.3 x 14.1 x 4.19 cm; 531 Grams |

## Product Details

- **Brand:** OCOOPA
- **Color:** Pack1- Union 5s+ Extra Union core
- **Material:** Aluminum
- **Recommended Uses For Product:** Golfing, Hunting
- **Battery Description:** Lithium

## Images

![OCOOPABattery Replaceable Hand Warmers Rechargeable, Modular Handwarmer Portable Charger, 4 Levels Electric Heater, 10000 mAh Battery, Up to 15hrs, Perfect for Golf, Hunting Gifts Men- Union 5s - Image 1](https://m.media-amazon.com/images/I/61pWmbE6RRL.jpg)
![OCOOPABattery Replaceable Hand Warmers Rechargeable, Modular Handwarmer Portable Charger, 4 Levels Electric Heater, 10000 mAh Battery, Up to 15hrs, Perfect for Golf, Hunting Gifts Men- Union 5s - Image 2](https://m.media-amazon.com/images/I/61mgaN2zNvL.jpg)
![OCOOPABattery Replaceable Hand Warmers Rechargeable, Modular Handwarmer Portable Charger, 4 Levels Electric Heater, 10000 mAh Battery, Up to 15hrs, Perfect for Golf, Hunting Gifts Men- Union 5s - Image 3](https://m.media-amazon.com/images/I/61gjzfB12kL.jpg)
![OCOOPABattery Replaceable Hand Warmers Rechargeable, Modular Handwarmer Portable Charger, 4 Levels Electric Heater, 10000 mAh Battery, Up to 15hrs, Perfect for Golf, Hunting Gifts Men- Union 5s - Image 4](https://m.media-amazon.com/images/I/71GjB5rre3L.jpg)
![OCOOPABattery Replaceable Hand Warmers Rechargeable, Modular Handwarmer Portable Charger, 4 Levels Electric Heater, 10000 mAh Battery, Up to 15hrs, Perfect for Golf, Hunting Gifts Men- Union 5s - Image 5](https://m.media-amazon.com/images/I/61QpXQbhxOL.jpg)

## Available Options

This product comes in different **Colour Name** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars







  
  
    Works a treat
  

*by P***R on Reviewed in the United Kingdom on 16 December 2022*

I bought 4 of these while on offer.  I was originally looking at heated gilet's but they're mostly unattractive, they have to be worn tight to work. You're then restricted on what else you wear etc., etc.  Not just to hold in your hand, I put these inside my coat, whatever coat I choose to wear.  Keeps me toasty and warm.  They do get hot, much hotter than most heated garments I've tried.  I usually put in full blast for a few minutes, then set it down to one (lowest). Lasts for hours, though I can't say 15 but plently long enough for my uses.  These are much more versatile for me than heated clothes. Very pleased with them. The only downside I've found is that you cannot use a high power charger.  It's not that it just charges slowly anyway, it simply does not charge at all.  Using a standard low power charger it charges fine, but takes a long time.  Hence why I bought 4. I generally only use two at a time while the other two can stay home and be charged.  However, when travelling it will mean taking a separate low power charger just for these as everything else works with intelligent fast chargers, even those that do not fast charge.  These hand warmers do also seem very well made, good quality products.

### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars







  
  
    Gets really hot
  

*by B***Z on Reviewed in the United Kingdom on 4 April 2023*

Bought two of these and love them.They do get really hot, not too hot to hold but a bit too hot for prolonged pocket use in trousers.Decent size, also use to alleviate backache by placing under belt.Heat settings are easily selectable, but some kind of switch cover would've been nice as its quite easy to alter heat setting accidentally.Double-clicking heat button shows battery state, so it's easy to see if it needs a top up

### ⭐⭐⭐⭐ 4.0 out of 5 stars







  
  
    Keep hands warm
  

*by R***O on Reviewed in the United Kingdom on 3 January 2023*

The battery life does not meet up to expectations. On the first setting, the battery is estimated to last up to 15 hours on a full charge. On average mine have lasted at most, 5 hours on the first setting. When they are on though, they keep my hands very warm and I find them comfortable to hold in my pockets.

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.ie/products/513222952-ocoopabattery-replaceable-hand-warmers-rechargeable-modular-handwarmer-portable-charger-4](https://www.desertcart.ie/products/513222952-ocoopabattery-replaceable-hand-warmers-rechargeable-modular-handwarmer-portable-charger-4)

---

*Product available on Desertcart Ireland*
*Store origin: IE*
*Last updated: 2026-02-16*