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UGS-03 3000mAh 3.7V Li-ion Polymer replacement battery for WP826 and WP836 portable WiFi hotspot phones, front view showing battery surface and small 2-pin connector
UGS-03 3000mAh 3.7V replacement battery for WP826 and WP836 portable WiFi hotspot phones, back view showing model number UGS-03, capacity 3000mAh, and voltage 3.7V on spec label

UGS-03 3000mAh 3.7V Battery for WP826 WP836 Portable WiFi Hotspot Phone Replacement

Original price was: $24.99.Current price is: $18.99.

🔘 UGS-03 3000mAh 3.7V | 🔋 Li-ion Polymer | 📱 For WP826/WP836 Portable WiFi Hotspot Phone

8 in stock

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SKU: UGS-03 Category: Tags: , , , ,
📦 Shipping, Warranty & After-Sales Information (Click to expand ▼)

✅ Why Our Warranty Stands Out

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Compare✅ Qingsm Tech⚠️ eBay / AliExpress
Warranty Period90 days from delivery15-30 days from order confirmation
When It Starts📦 Upon delivery⚠️ Upon order confirmation (even before you receive it)
Claims HandlingWe do it directly — email usAutomated dispute system, seller dependent
After Window ExpiresStill can contact us for supportNo recourse, seller can ignore you

🔋 90-day warranty is the industry standard for replacement batteries. Batteries naturally lose capacity over time — this normal wear is not covered. Warranty applies to manufacturing defects only.

📦 Shipping Cost & Delivery Time (Economy Shipping from China)

📦 Note: Batteries are classified as hazardous goods and must be shipped via specialized channels, which may take slightly longer than standard couriers. Delivery times are estimates and may be affected by customs, weather, or other unforeseen circumstances. If your country is not listed in the table below, we are currently unable to ship batteries to that destination.

DestinationFreight (USD)Est. Delivery Time
United States$7.808–15 days
Canada$6.8018–30 days
Mexico$10.0030–60 days
Germany, France, United Kingdom, Greece$6.5018–30 days
Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Hungary, Ireland, Italy, Luxembourg, Netherlands, Norway, Poland, Portugal, Slovakia, Spain, Sweden, Switzerland$8.0018–30 days
Croatia, Finland, Lithuania, Latvia, Slovenia$8.0030–50 days
Bulgaria, Romania$14.0030–50 days
South Korea, Japan, Australia, New Zealand, Israel, Malaysia, Singapore, Thailand, Philippines, Kazakhstan$7.5018–30 days
United Arab Emirates, Saudi Arabia, Vietnam, Chile, Peru, Colombia, Brazil$18.0025–60 days

🇧🇷 Note for Brazil: Brazilian customs can occasionally cause delays of up to 80 days or more. And please indicate the recipient's CPF, as it is required for Brazilian customs and shipping. Thanks! We appreciate your understanding.

🇪🇺 Note for EU countries: Due to new EU customs regulations effective July 1, 2026, a flat tariff fee of $4.00 (approx. €3.50) applies to shipments to EU countries. This fee covers customs tariff, handling, and payment processing costs, and will be added at checkout. Thank you for your understanding.

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Description

✅ Condition: Brand New – Never used, factory-tested quality

✅ 3000mAh High Capacity – Restores full battery life for WP826 and WP836 portable WiFi hotspot phones

✅ CE / RoHS / UN38.3 Certified

✅ 90-Day Warranty from delivery – Longer coverage than major platforms

✅ Ships in 3-7 days with tracking

🛡️ Shipping Protection Available at Checkout

✅ PayPal Buyer Protection included

✅ 100% Compatibility Guarantee – If it doesn’t fit, we’ll refund you. No questions asked.

⚠️ Low Stock Alert: Only 8 left in stock. Order now to avoid waiting.

Battery model: UGS-03
Capacity: 3000mAh (typical) / 11.1Wh
Rated voltage: 3.7V
Charge limit voltage: 4.2V
Battery type: Li-ion Polymer (Grade A cells)
Compatible with: WP826, WP836 Portable WiFi Hotspot Phone
Package include: 1 x battery
Restore the reliable performance of your WP826 or WP836 portable WiFi hotspot phone with this UGS-03 3000mAh replacement battery. The WP826 and WP836 are versatile 4G portable devices that combine the functionality of a mobile WiFi hotspot with traditional telephone capabilities. They are ideal for travelers, remote workers, and businesses that need reliable internet connectivity and voice communication on the go. After extended daily use and repeated charging cycles, the factory battery capacity naturally degrades. This Li‑ion Polymer battery restores the full 3000mAh capacity, bringing back the reliable runtime these devices were designed for. Built with grade A cells and multi‑layer safety protection against overcharge, over‑discharge, and short circuits. CE, RoHS, and UN38.3 certified for safe shipping and use.
Designed for Portable Communication Endurance: The WP826 and WP836 portable WiFi hotspot phones are built for users who need both internet connectivity and voice calling wherever they go. The UGS-03 3000mAh battery powers these versatile devices, providing the energy needed for hours of continuous WiFi tethering and voice calls. After 1‑2 years of daily use, the original battery capacity degrades significantly. Common symptoms include: the device requiring more frequent charging, shorter runtime than when new, unexpected shutdowns during use, or visible battery swelling. This UGS-03 replacement battery restores the factory‑spec 3000mAh capacity, giving you back the freedom to stay connected on the road, at worksites, or during travel. The battery uses high‑density cell technology with precise voltage control, ensuring stable output and compatibility with the device’s original charging circuitry.
Compatibility Note: Fits WP826 and WP836 portable WiFi hotspot phones only. Please confirm your battery model before ordering — UGS-03 is printed on your original battery. This battery is NOT compatible with WP820, WP830, WP840, or other portable WiFi hotspot models. The WP826 and WP836 share the same battery design and connector layout; using a different battery model may cause charging issues or incorrect battery reporting.

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Frequently Asked Questions

The UGS-03 3000mAh battery replacement is compatible with WP826 and WP836 portable WiFi hotspot phones. If you need a UGS-03 battery for WP826 or a UGS-03 battery for WP836 portable WiFi hotspot phone, this replacement battery is the exact match. These devices combine 4G portable WiFi hotspot functionality with telephone capabilities, making them ideal for mobile communication. For UGS-03 battery compatibility, please verify your battery model printed on the original unit — UGS-03 is the correct model for these devices. This battery is NOT compatible with WP820, WP830, WP840, or other portable WiFi hotspot models. If your current WP826 portable WiFi hotspot phone battery or WP836 battery now drains quickly or shuts down unexpectedly, this UGS-03 3.7V 3000mAh Li‑ion Polymer battery will restore full runtime and reliability.

The UGS-03 3000mAh battery for WP826 and WP836 portable WiFi hotspot phones has a typical capacity of 3000mAh (11.1Wh) and a rated voltage of 3.7V, with a charge limit of 4.2V. This UGS-03 3.7V 3000mAh Li‑ion Polymer battery is built with grade A cells and is CE, RoHS, and UN38.3 certified. For UGS-03 battery life after replacement, the battery restores the factory runtime that these portable WiFi hotspot phones are known for. The UGS-03 3000mAh battery performance provides reliable power for 4G connectivity, multi‑device tethering, voice calls, and extended use during travel or work. For best UGS-03 battery performance WP836, allow 2‑3 full charge cycles after installation to calibrate the battery meter. If your original WP826 portable WiFi hotspot phone battery now requires more frequent charging instead of lasting through your workday, this replacement will restore the full 3000mAh capacity and stable voltage output.

Professional UGS-03 battery installation is recommended for WP826 and WP836 portable WiFi hotspot phones. These devices have a sealed design that requires careful opening. To replace UGS-03 battery in WP826 or replace UGS-03 battery in WP836 portable WiFi hotspot phone, the technician must carefully open the device casing to avoid damaging the internal components or antenna, disconnect the battery's small 2‑pin connector, remove the old battery, and install the new UGS-03 battery before resealing the device. For UGS-03 battery installation WP836, improper handling can damage the device's internal components or compromise the casing seal. For UGS-03 battery health maintenance and WP826 portable WiFi hotspot phone battery care tips: 1) Use the original charger and cable for optimal charging. 2) Keep battery level between 20% and 80% for daily use to maximize the lifespan of the 3000mAh cell. 3) Avoid exposing the device to high temperatures (above 40°C / 104°F), especially while charging. 4) For long‑term storage (over 2 months), keep the battery at approximately 40‑60% charge. 5) Perform a full calibration cycle after installation: drain the device until it auto‑shuts off, then charge uninterrupted to 100%. For UGS-03 battery care tips WP836, stop using immediately if the battery shows any swelling or deformation.

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