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Li3941T44P4h836249 4220mAh 3.87V Li-ion Polymer replacement battery for ZTE Axon 20, A2121, and A20 5G, front view showing battery surface and small 2-pin connector
Li3941T44P4h836249 4220mAh 3.87V replacement battery for ZTE Axon 20, A2121, and A20 5G, back view showing model number Li3941T44P4h836249, capacity 4220mAh, and voltage 3.87V on spec label

Li3941T44P4h836249 4220mAh 3.87V Battery for ZTE Axon 20 A2121 A20 5G Replacement

Original price was: $28.99.Current price is: $21.99.

🔘 Li3941T44P4h836249 4220mAh 3.87V | 🔋 Li-ion Polymer | 📱 For ZTE Axon 20/A2121/A20 5G Fast Charging

8 in stock

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SKU: Li3941T44P4h836249 Category: Tags: , , , , ,
📦 Shipping, Warranty & After-Sales Information (Click to expand ▼)

✅ Why Our Warranty Stands Out

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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

✅ 4220mAh High Capacity – Restores full battery life for ZTE Axon 20, A2121, and A20 5G

✅ 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: Li3941T44P4h836249
Capacity: 4220mAh (typical) / 16.28Wh
Rated voltage: 3.87V
Charge limit voltage: 4.45V
Battery type: Li-ion Polymer (Grade A cells)
Compatible with: ZTE Axon 20, ZTE A2121, ZTE A20 5G
Package include: 1 x battery
Restore the reliable performance of your ZTE Axon 20 series device with this Li3941T44P4h836249 4220mAh replacement battery. Launched in September 2020, the ZTE Axon 20 made history as the world’s first smartphone with an under‑display camera, featuring a 6.92-inch FHD+ OLED display and 5G connectivity. The Axon 20 series is designed for users who value innovation and all‑day performance. After years of daily charging cycles, the factory battery capacity naturally degrades. This Li‑ion Polymer battery restores the full 4220mAh capacity, bringing back the dependable endurance this device was 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.
Designed for Reliable Daily Performance: The ZTE Axon 20, A2121, and A20 5G are built around a 4220mAh battery that delivers solid all‑day endurance. After extended use, the original battery capacity degrades significantly. Common symptoms include: the device requiring more frequent charging, unexpected shutdowns at 15‑25% battery remaining, slower charging than when new, or visible battery swelling. This Li3941T44P4h836249 replacement battery restores the factory‑spec 4220mAh capacity and supports the original fast charging capability. 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 ZTE Axon 20, ZTE A2121, and ZTE A20 5G only. Please confirm your battery model before ordering — Li3941T44P4h836249 is printed on your original battery. This battery is NOT compatible with ZTE Axon 20 Pro, ZTE Axon 20 Ultra, ZTE Axon 30 series, or other ZTE models. The Axon 20 series uses a distinct 4220mAh battery with specific dimensions and connector layout; using a different battery model may cause charging issues or incorrect battery reporting.

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Frequently Asked Questions

The Li3941T44P4h836249 4220mAh battery replacement is compatible with ZTE Axon 20, ZTE A2121, and ZTE A20 5G. If you need a Li3941T44P4h836249 battery for ZTE Axon 20 or a Li3941T44P4h836249 battery for ZTE A2121, this replacement battery is the exact match. For Li3941T44P4h836249 battery compatibility, please verify your battery model printed on the original unit — Li3941T44P4h836249 is the correct model for these devices. This battery is NOT compatible with ZTE Axon 20 Pro, ZTE Axon 20 Ultra, ZTE Axon 30 series, or other ZTE models. If your current ZTE Axon 20 battery or ZTE A20 5G battery now drains quickly or shuts down unexpectedly, this Li3941T44P4h836249 3.87V 4220mAh Li‑ion Polymer battery will restore full endurance and reliability.

The Li3941T44P4h836249 4220mAh battery for ZTE Axon 20, A2121, and A20 5G has a typical capacity of 4220mAh (16.28Wh) and a rated voltage of 3.87V, with a charge limit of 4.45V. This Li3941T44P4h836249 3.87V 4220mAh Li‑ion Polymer battery is built with grade A cells and is CE, RoHS, and UN38.3 certified. For Li3941T44P4h836249 battery performance, the battery supports the original fast charging capability of the ZTE Axon 20 series. For best Li3941T44P4h836249 battery performance ZTE Axon 20, allow 2‑3 full charge cycles after installation to calibrate the battery meter. If your original ZTE A2121 battery now requires more frequent charging instead of lasting as it did when new, this replacement will restore the full 4220mAh capacity and fast charging speed.

Professional Li3941T44P4h836249 battery installation is recommended for ZTE Axon 20, A2121, and A20 5G. These devices have a sealed design with strong adhesive. To replace Li3941T44P4h836249 battery in ZTE Axon 20 or replace Li3941T44P4h836249 battery in ZTE A2121, the technician must heat the back cover to soften adhesive, carefully pry it open to avoid damaging the display or internal components, disconnect the battery's small 2‑pin connector, remove the old battery, and install the new Li3941T44P4h836249 battery before resealing. For Li3941T44P4h836249 battery installation, improper handling can damage the display or internal components. For Li3941T44P4h836249 battery health maintenance and ZTE Axon 20 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 4220mAh cell. 3) Avoid exposing the phone 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 phone until it auto‑shuts off, then charge uninterrupted to 100%. For Li3941T44P4h836249 battery care tips ZTE A20 5G, stop using immediately if the battery shows any swelling.

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