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HB434666RBC 1500mAh 3.7V Li-ion Polymer replacement battery for Huawei E5573 E5576 E5572 portable WiFi routers, front view showing battery surface and small 2-pin connector
HB434666RBC 1500mAh 3.7V replacement battery for Huawei E5573 E5576 E5572, back view showing model number HB434666RBC, capacity 1500mAh, and voltage 3.7V on spec label
HB434666RBC 1500mAh 3.7V Li-ion Polymer replacement battery for Huawei E5573 E5576 E5572 portable WiFi routers, close-up view of the small 2-pin connector showing positive and negative terminal positions on the interface for easy installation orientation

HB434666RBC 1500mAh 3.7V Battery for Huawei E5573 E5576 E5572 Router Replacement

Original price was: $16.99.Current price is: $12.99.

🔘 HB434666RBC 1500mAh 3.7V | 🔋 Li-ion Polymer | 📱 For Huawei E5573 / E5576 / E5572 Router 4-6H WiFi Hotspot Battery

8 in stock

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SKU: HB434666RBC 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

✅ 1500mAh High Capacity – Restores full battery life for Huawei E5573, E5576, and E5572

✅ 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: HB434666RBC
Capacity: 1500mAh (typical) / 5.55Wh
Rated voltage: 3.7V
Charge limit voltage: 4.2V
Battery type: Li-ion Polymer (Grade A cells)
Compatible with: Huawei E5573, Huawei E5576, Huawei E5572
Package include: 1 x battery
Revive your Huawei mobile WiFi router with this HB434666RBC 1500mAh replacement battery. The Huawei E5573, E5576, and E5572 are among the most popular portable 4G WiFi hotspots worldwide, prized for their compact design and reliable connectivity. This Li-ion Polymer battery restores the full 1500mAh capacity, giving you back 4-6 hours of continuous WiFi sharing on a single charge, depending on network conditions and connected devices. Built with grade A cells and multi-layer safety protection against overcharge, over-discharge, and short circuits. CE, RoHS, and UN38.3 certified.
Designed for Extended Router Battery Life: The Huawei E5570 series portable routers are designed for travelers, remote workers, and anyone who needs reliable WiFi on the go. After 2-3 years of daily charging cycles, the original HB434666RBC battery capacity naturally degrades significantly. Common symptoms include: the router requiring frequent charging, unexpected power-off during use, shorter runtime than the original 4-6 hours, or visible battery swelling. This replacement battery restores the factory-spec 1500mAh capacity, allowing you to continue enjoying the portable WiFi experience these devices were built for. The battery uses advanced Li-ion Polymer technology with multi-layer protection circuitry, ensuring stable power output and reliable performance for years to come. The built-in protection board prevents overcharge, over-discharge, over-current, and short-circuit conditions, keeping your Huawei E5570 series safe during daily use.
Compatibility Note: Fits Huawei E5573, Huawei E5576, and Huawei E5572 only. Please confirm your battery model before ordering — HB434666RBC is printed on your original battery or listed on the router’s internal label. This battery is NOT compatible with Huawei E5570, E5577, E5578, E5885, or other Huawei router models. The E5573, E5576, and E5572 share the same battery design with the HB434666RBC cell; using a different battery model may cause fitment issues or charging problems.

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Frequently Asked Questions

The HB434666RBC 1500mAh battery replacement is compatible with Huawei E5573, Huawei E5576, and Huawei E5572 portable WiFi routers only. If you need a HB434666RBC battery for Huawei E5573 hotspot or a HB434666RBC battery for Huawei E5576 portable WiFi, this replacement battery is the exact match. The HB434666RBC 1500mAh Huawei router battery fits all three models as they share the same internal battery design. For HB434666RBC battery compatibility Huawei E5572, please check your router model number on the label underneath the battery compartment or on the back of the device. This battery is NOT compatible with Huawei E5570, E5577, E5578, E5885, or any other Huawei router series. If your portable WiFi hotspot battery no longer lasts through a typical workday, this HB434666RBC 3.7V 1500mAh Li-ion Polymer replacement will restore the full runtime.

The HB434666RBC 1500mAh battery for Huawei E5573 E5576 E5572 has a typical capacity of 1500mAh (5.55Wh) and a rated voltage of 3.7V, with a charge limit of 4.2V. This HB434666RBC 3.7V 1500mAh Li-ion Polymer battery is built with grade A cells and is CE, RoHS, and UN38.3 certified. For Huawei E5573 battery life after replacement, expect approximately 4-6 hours of continuous WiFi sharing, depending on signal strength and the number of connected devices. The Huawei E5576 battery performance is consistent with factory specifications, providing reliable portable WiFi connectivity throughout the day. For HB434666RBC battery performance Huawei E5572, allow 2-3 full charge cycles after installation to calibrate the power indicator. If your original Huawei portable WiFi battery now drains within 2 hours instead of the original 4-6 hours, this replacement will restore the full 1500mAh capacity and reliable runtime.

Replacing the HB434666RBC battery in Huawei E5573, E5576, or E5572 is straightforward. To replace Huawei E5573 battery HB434666RBC, remove the back cover of the router, disconnect the battery's small 2-pin connector from the mainboard, gently pry out the old battery, and insert the new HB434666RBC replacement before reconnecting the small 2-pin connector. For Huawei E5576 battery installation, be careful when handling the thin connector ribbon to avoid damage. For HB434666RBC battery installation Huawei E5572, ensure the battery is seated flat before closing the cover — the connector should click into place securely. This is a simple DIY procedure that takes about 2-3 minutes with no special tools required. For Huawei E5570 series battery health maintenance: 1) Avoid using the router while charging to reduce heat exposure. 2) Store the device in a cool, dry place when not in use. 3) Keep battery level between 20% and 80% for daily use to maximize the lifespan of the 1500mAh cell. 4) Avoid exposing the router to high temperatures (above 40°C / 104°F), especially during charging. 5) For long-term storage (over 2 months), keep the battery at approximately 40-60% charge. For Huawei E5573 battery care tips, stop using the battery immediately if you notice any swelling or physical damage.

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