---
product_id: 467605011
title: "W-7B Battery,2026 New Upgarded Replacement Battery for AT&T Unite Express 2 Netgear Aircard 800s 797s 779S 780S 790S 790SP 810S 4G LTE Mobile Hotspot 1800mAh 3.7V/6.66Wh"
brand: "soseieiu"
price: "$29.29"
currency: USD
in_stock: true
reviews_count: 8
category: "Soseieiu"
url: https://www.desertcart.us/products/467605011-w-7b-battery-2026-new-upgarded-replacement-battery-for-at
store_origin: US
region: United States of America
---

# Smart microchip protection 3000mAh high capacity Perfect OEM compatibility W-7B Battery,2026 New Upgarded Replacement Battery for AT&T Unite Express 2 Netgear Aircard 800s 797s 779S 780S 790S 790SP 810S 4G LTE Mobile Hotspot 1800mAh 3.7V/6.66Wh

**Brand:** soseieiu
**Price:** $29.29
**Availability:** ✅ In Stock

## Summary

> 🔋 Stay powered, stay connected — never settle for less!

## Quick Answers

- **What is this?** W-7B Battery,2026 New Upgarded Replacement Battery for AT&T Unite Express 2 Netgear Aircard 800s 797s 779S 780S 790S 790SP 810S 4G LTE Mobile Hotspot 1800mAh 3.7V/6.66Wh by soseieiu
- **How much does it cost?** $29.29 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/467605011-w-7b-battery-2026-new-upgarded-replacement-battery-for-at)

## Best For

- soseieiu enthusiasts

## Why This Product

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

## Key Features

- • **Seamless OEM Fit:** Specifically engineered for Netgear AirCard models ensuring hassle-free installation and perfect fit.
- • **Smart Safety Tech:** Built-in microchip guards against overcharge, discharge, and short circuits for peace of mind.
- • **Customer-First Support:** Responsive 24-hour support ensures your questions and concerns are handled swiftly.
- • **Tested for Reliability:** Triple-tested under strict quality controls to guarantee durability and consistent performance.
- • **Power That Lasts All Day:** 3000mAh capacity keeps your hotspot running longer, so you never miss a beat.

## Overview

The W-7B Battery is a 3000mAh, 3.7V replacement battery designed exclusively for Netgear AirCard 779S, 780S, 790S, 790SP, 810S, 800s, and 797s 4G LTE Mobile Hotspots. Featuring premium Grade A+ cells and a smart microchip, it delivers stable, safe power with protection against overcharging and short circuits. Rigorously tested for quality and backed by responsive customer support, it’s the ultimate upgrade to keep your mobile hotspot performing at peak capacity.

## Description

Buy Soseieiu W-7B Battery,2026 New Upgarded Replacement Battery for AT&T Unite Express 2 Netgear Aircard 800s 797s 779S 780S 790S 790SP 810S 4G LTE Mobile Hotspot 1800mAh 3.7V/6.66Wh: Batteries - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

Review: Perfect fit - This fit perfect in a NetGear hotspot. The factory original had began to swell and as a safety precaution I replaced the battery with this one. It’s been in only a couple weeks but it seems to hold a charge for a long time and so far it works well.
Review: Hmmm, jury is still out on this one. - Battery works, but a super tight fit into the battery slot, which makes it impossible to remove without a leverage device (like screwdriver) and not sure the charging accurately, sometimes is plugged in for several hours with little movement in percent charged, then next thing you know the battery shows as fully charged.

## Features

- 【Perfect Compatibility】​ This replacement battery is specifically designed for Netgear AirCard 779S, 780S, 790S, 790SP, 810S, 800s, and 797s 4G LTE Mobile Hotspots. Please verify your device model and the original battery model (W-7B) before purchasing to ensure a perfect fit.
- 【Stable & Reliable Power】​ Brand new high-quality upgraded W-7B Battery with a real capacity of 3000mAh. Equipped with premium Grade A+ cells and a built-in smart microchip, it provides stable performance and effectively protects your hotspot against over-charging, over-discharging, and short circuits—performing just as reliably as your original battery.
- 【Optimal Usage Guide】​ To activate the battery's full potential, please fully drain the battery power completely for the first three charging cycles before recharging to 100%. This initial calibration helps the battery reach its optimal performance and longevity. (Note: Avoid frequent deep discharges in daily use after the initial cycles).
- 【Safety & Longevity】​ Every battery undergoes rigorous testing under strict quality control standards. We utilize professional equipment to test each unit three times prior to shipment to ensure safety and durability. It is an excellent choice to replace your aging, swollen, or non-holding old battery.
- 【Worry-Free After-Sales】​ Your satisfaction is our priority. If you have any questions regarding compatibility, installation, or performance—whether pre-sales or after-sales—please feel free to contact us. We promise to respond within 24 hours to resolve any issues efficiently. Buy with confidence!

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0B8S3JYJW |
| Antenna Location | Phone |
| Battery Capacity | 3000 milliamp_hours |
| Battery Cell Composition | NiMH |
| Battery Cell Type | NiMH |
| Battery Weight | 50 g |
| Best Sellers Rank | #21,074 in Cell Phones & Accessories ( See Top 100 in Cell Phones & Accessories ) #62 in Cell Phone Replacement Batteries |
| Brand | Soseieiu |
| Compatible Phone Models | AT&T Unite Express 2 Netgear Aircard 800s 797s 779S 780S 790S 790SP 810S 4G LTE Mobile Hotspot |
| Customer Reviews | 4.1 out of 5 stars 37 Reviews |
| Manufacturer | Shenzhen Yule Technology Co., Ltd. |
| Model Name | W-7B |
| Model Number | W-7B |
| Number of Batteries | 1 Lithium Polymer batteries required. (included) |
| Recommended Uses For Product | Phone |
| Reusability | Rechargeable |
| UPC | 788362019860 |
| Unit Count | 1 Count |
| Voltage | 3.8 volts |
| Warranty Description | 2 |

## Product Details

- **Battery Capacity:** 3000 Milliamp Hours
- **Battery Cell Composition:** NiMH
- **Brand:** Soseieiu
- **Number of Batteries:** 1 Lithium Polymer batteries required. (included)
- **Recommended Uses For Product:** Phone

## Images

![W-7B Battery,2026 New Upgarded Replacement Battery for AT&T Unite Express 2 Netgear Aircard 800s 797s 779S 780S 790S 790SP 810S 4G LTE Mobile Hotspot 1800mAh 3.7V/6.66Wh - Image 1](https://m.media-amazon.com/images/I/61KM7GfRyTL.jpg)
![W-7B Battery,2026 New Upgarded Replacement Battery for AT&T Unite Express 2 Netgear Aircard 800s 797s 779S 780S 790S 790SP 810S 4G LTE Mobile Hotspot 1800mAh 3.7V/6.66Wh - Image 2](https://m.media-amazon.com/images/I/71c0OLAcsEL.jpg)
![W-7B Battery,2026 New Upgarded Replacement Battery for AT&T Unite Express 2 Netgear Aircard 800s 797s 779S 780S 790S 790SP 810S 4G LTE Mobile Hotspot 1800mAh 3.7V/6.66Wh - Image 3](https://m.media-amazon.com/images/I/71vTwBLsrRL.jpg)
![W-7B Battery,2026 New Upgarded Replacement Battery for AT&T Unite Express 2 Netgear Aircard 800s 797s 779S 780S 790S 790SP 810S 4G LTE Mobile Hotspot 1800mAh 3.7V/6.66Wh - Image 4](https://m.media-amazon.com/images/I/71c+YEq4x2L.jpg)
![W-7B Battery,2026 New Upgarded Replacement Battery for AT&T Unite Express 2 Netgear Aircard 800s 797s 779S 780S 790S 790SP 810S 4G LTE Mobile Hotspot 1800mAh 3.7V/6.66Wh - Image 5](https://m.media-amazon.com/images/I/71w75TgNPAL.jpg)

## Available Options

This product comes in different **Size** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Perfect fit
*by K***R on October 23, 2025*

This fit perfect in a NetGear hotspot. The factory original had began to swell and as a safety precaution I replaced the battery with this one. It’s been in only a couple weeks but it seems to hold a charge for a long time and so far it works well.

### ⭐⭐⭐ Hmmm, jury is still out on this one.
*by E***H on August 14, 2023*

Battery works, but a super tight fit into the battery slot, which makes it impossible to remove without a leverage device (like screwdriver) and not sure the charging accurately, sometimes is plugged in for several hours with little movement in percent charged, then next thing you know the battery shows as fully charged.

### ⭐⭐⭐⭐⭐ Works great
*by S***T on October 15, 2025*

Works great

## Frequently Bought Together

- Soseieiu W-7b Battery,(𝟮𝟬𝟮𝟱 𝗡𝗲𝘄 𝗨𝗽𝗴𝗿𝗮𝗱𝗲𝗱) Replacement Battery for AT&T Unite Express 2 Netgear Aircard 800s 797s 779S 780S 790S 790SP 810S 4G LTE Mobile Hotspot 3000mAh 3.85V/11.5Wh
- Netgear Unite Express Explorer 2 AirCard 797S 4G LTE Mobile WiFi Hotspot (AT&T GSM Unlocked) (Renewed)

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-08-17*