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HB572728EGW 530mAh 3.89V Li-ion Polymer replacement battery for Huawei Watch GT4 46mm PNX-B19, front view showing battery surface and small connector

HB572728EGW 530mAh 3.89V Battery for Huawei Watch GT4 46mm PNX-B19 Replacement

Original price was: $21.99.Current price is: $16.99.

🔘 HB572728EGW 530mAh 3.89V | 🔋 Li-ion Polymer | ⌚ For Huawei Watch GT4 46mm PNX-B19

8 in stock

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📦 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

✅ 530mAh High Capacity – Restores full battery life for Huawei Watch GT4 46mm

✅ 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: HB572728EGW
Capacity: 530mAh / 2.03Wh
Rated voltage: 3.89V
Charge limit voltage: 4.2V
Battery type: Li-ion Polymer (Grade A cells)
Compatible with: Huawei Watch GT4 46mm (PNX-B19)
Package include: 1 x battery
Revive your Huawei Watch GT4 46mm with this HB572728EGW 530mAh replacement battery. Released in September 2023, the Watch GT4 46mm is one of Huawei’s most popular smartwatches, featuring a 1.43-inch AMOLED display, stainless steel bezel, and the brand’s signature 14-day battery life. After years of daily charging cycles, the original battery’s capacity inevitably degrades. This Li-ion Polymer battery restores the full 530mAh capacity, bringing back the impressive battery life the Watch GT4 is known for. Built with grade A cells and multi-layer safety protection against overcharge, over-discharge, and short circuits. CE, RoHS, and UN38.3 certified.
Why This Battery Replacement Matters for Watch GT4 46mm Users: The Huawei Watch GT4 46mm was designed for users who value long battery life and premium design. The 530mAh battery originally delivered up to 14 days of regular use. However, after 2-3 years of daily charging, the original battery capacity drops significantly. Common symptoms include: the watch needing more frequent charging, battery draining within days instead of weeks, the watch shutting down before the battery indicator shows empty, or the device only working when on the charger. The HB572728EGW battery is specifically designed for the PNX-B19 model. This replacement is a cost-effective way to extend the life of your Watch GT4 instead of purchasing a new smartwatch, especially for users who appreciate the 46mm size and the classic watch design.
Compatibility Note: Fits Huawei Watch GT4 46mm (PNX-B19) only. Please confirm your watch model before ordering — PNX-B19 is printed on the back of your watch. This battery is NOT compatible with Watch GT4 41mm, Watch GT3, Watch GT3 Pro, Watch GT 46mm (FTN-B19), or Watch D2. The 41mm version uses a different battery (HB572727EFW). Always check your original battery model before purchasing.

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Frequently Asked Questions

The HB572728EGW battery for Huawei Watch GT4 46mm is compatible with Huawei Watch GT4 46mm (model PNX-B19) only. If you need a Huawei Watch GT4 46mm battery replacement for PNX-B19, this HB572728EGW 530mAh replacement battery is the exact match. The Watch GT4 46mm features a 1.43-inch AMOLED display and up to 14 days of battery life. For HB572728EGW battery for Huawei Watch GT4 46mm compatibility, please verify your watch model on the back of the device — it should show PNX-B19. This battery is NOT compatible with Huawei Watch GT4 41mm (which uses HB572727EFW), Watch GT3, Watch GT3 Pro, Watch GT 46mm FTN-B19, or Watch D2 LCA-B11. If your Watch GT4 battery drains too quickly or won't hold a charge, this HB572728EGW replacement battery will restore full performance.

The HB572728EGW 530mAh battery for Huawei Watch GT4 46mm has a typical capacity of 530mAh (2.03Wh) and a rated voltage of 3.89V, with a charge limit of 4.2V. This HB572728EGW 3.89V 530mAh Li-ion Polymer battery is built with grade A cells and is CE, RoHS, and UN38.3 certified. For Huawei Watch GT4 46mm battery life after replacement, expect approximately 10-14 days of regular use (with typical heart rate monitoring and notifications) and 4 days with Always-On Display enabled. The Watch GT4 46mm 530mAh battery performance delivers excellent battery life thanks to the power-efficient AMOLED display and optimized software. Charging the Watch GT4 battery from 0 to 100% takes approximately 1.5-2 hours using the original magnetic charging dock. For best performance, allow 2-3 full charge cycles after installation to calibrate the battery meter. If your original battery now requires weekly or daily charging, this replacement will restore the original 14-day battery life.

Replacing the Huawei Watch GT4 46mm battery is a complex procedure that requires specialized tools and skills. For Huawei Watch GT4 46mm battery replacement guide: 1) Power off the watch completely. 2) Remove the watch band and the back cover screws. 3) Carefully separate the back cover from the watch body using a plastic spudger — the watch is sealed with adhesive for water resistance. 4) Locate the HB572728EGW battery inside the watch. 5) Disconnect the battery connector (pull by the plug, not the wires). 6) Remove the old battery — it is adhered with strong double-sided tape. 7) Connect the new HB572728EGW battery — the small connector is keyed and only fits one way. 8) Reapply new waterproof adhesive and reassemble the watch carefully. For HB572728EGW battery installation Watch GT4 46mm, professional installation is strongly recommended because the watch has water resistance (5 ATM) that must be restored after opening. Third-party repair shops typically charge $25-50 for this service. Huawei authorized service centers may charge $40-70. For Huawei Watch GT4 battery health maintenance: 1) Use only the original magnetic charging dock that came with the watch. 2) Avoid fully draining the battery regularly — keep above 20% when possible. 3) Avoid exposing the watch to high temperatures (above 40°C / 104°F) — heat accelerates battery degradation. 4) For long-term storage (over 2 months), keep the battery at approximately 60% charge. 5) Perform a full calibration cycle after installation: drain the watch until it powers off, then charge uninterrupted to 100% using the original charger. For Huawei Watch GT4 battery care tips, stop using immediately if the battery shows any swelling — a swollen battery can damage the watch's display and case.

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