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JS40 3000mAh 3.8V Li-ion Polymer replacement battery for Motorola Moto Z3 XT1929-1 XT1929-4 XT1929-5 XT1929-6 XT1929-8, front view showing battery surface and small 2-pin connector

JS40 3000mAh 3.8V Battery for Motorola Moto Z3 XT1929-1 XT1929-4 XT1929-5 XT1929-6 XT1929-8 Replacement

Original price was: $27.99.Current price is: $22.99.

🔘 JS40 3000mAh 3.8V | 🔋 Li-ion Polymer | 📱 For Motorola Moto Z3 XT1929-1 / XT1929-4 / XT1929-5 / XT1929-6 / XT1929-8

8 in stock

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SKU: JS40 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, Czech Republic, Denmark, Estonia, Hungary, Ireland, Italy, Luxembourg, Netherlands, Norway, Poland, Portugal, Slovakia, Spain, Sweden, Switzerland, Ukraine$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: New – Factory-tested quality & Warranty

✅ 3000mAh High Capacity – Restores full battery life for Motorola Moto Z3

✅ 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: JS40
Capacity: 3000mAh (typical) / 11.4Wh
Rated voltage: 3.8V
Charge limit voltage: 4.4V
Battery type: Li-ion Polymer (Grade A cells)
Compatible with: Motorola Moto Z3 (XT1929-1 / XT1929-4 / XT1929-5 / XT1929-6 / XT1929-8 / XT1929-15 / XT1929-17), Motorola Moto Z3 Play (XT1929 series)
Package include: 1 x battery
Restore the reliable battery performance of your Motorola Moto Z3 with this JS40 3000mAh replacement battery. The Moto Z3 features a 6.01-inch Super AMOLED display and is powered by the Qualcomm Snapdragon 835 processor with 4GB RAM. After 1-2 years of regular charging cycles, the original battery’s capacity naturally declines. This Li-ion Polymer battery restores the full 3000mAh capacity, bringing back the consistent daily endurance your device was built 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 Use: The 3000mAh battery in the Moto Z3 originally provided dependable endurance for streaming on the Super AMOLED display, gaming, photography with the dual 12MP camera system, and daily tasks, supporting 15W TurboPower fast charging for quick recharging. After years of charging cycles, battery capacity degrades significantly. Common symptoms include: the device requiring more frequent charging than when new, unexpected shutdowns at 15-20% battery remaining, slower charging than when new, or visible battery swelling. This replacement restores the original endurance, allowing you to continue using your Motorola Moto Z3 without interruption. The JS40 battery uses advanced high-density cell technology with multi-layer safety protection, ensuring reliable performance for years to come.
Compatibility Note: Fits Motorola Moto Z3 (XT1929-1 / XT1929-4 / XT1929-5 / XT1929-6 / XT1929-8 / XT1929-15 / XT1929-17) and Motorola Moto Z3 Play (XT1929 series) only. Please confirm your battery model before ordering — JS40 is printed on your original battery. This battery is NOT compatible with other Motorola models. The Moto Z3 uses a specific 3000mAh battery with precise dimensions; using a different battery model may cause improper fit, charging issues, or incorrect battery reporting.

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Frequently Asked Questions

The JS40 battery for Motorola Moto Z3 is compatible with Motorola Moto Z3 (XT1929-1 / XT1929-4 / XT1929-5 / XT1929-6 / XT1929-8 / XT1929-15 / XT1929-17) and Motorola Moto Z3 Play (XT1929 series). If you need a Motorola Moto Z3 battery replacement, this JS40 3000mAh battery is the exact match. For JS40 battery for Motorola Moto Z3 compatibility, please verify your device model in Settings > About Phone or check the label on your original battery — the model number JS40 is printed there. The Moto Z3 features a 6.01-inch Super AMOLED display and Snapdragon 835 processor. This battery is NOT compatible with other Motorola models. If your Motorola Moto Z3 battery no longer holds charge as it did when new or shuts down unexpectedly, this JS40 replacement battery will restore the full performance.

The JS40 3000mAh battery for Motorola Moto Z3 has a typical capacity of 3000mAh (11.4Wh) and a rated voltage of 3.8V, with a charge limit of 4.4V. This JS40 3.8V 3000mAh Li-ion Polymer battery is built with Grade A cells and is CE, RoHS, and UN38.3 certified. The Motorola Moto Z3 battery supports 15W TurboPower fast charging. For best performance, allow 2-3 full charge cycles after installation to calibrate the battery meter. If your original battery now requires more frequent charging than when new, this replacement will restore the original capacity.

Professional Motorola Moto Z3 battery installation is recommended. The Moto Z3 has a sealed design with an internal battery. To replace Motorola Moto Z3 battery JS40, the technician must heat the back cover to soften adhesive, carefully pry it open to avoid damaging the Super AMOLED display or frame, disconnect the battery's small 2-pin connector, remove the old battery, and install the new JS40 battery before resealing the device. For JS40 battery installation Motorola Moto Z3, improper handling can damage the display or compromise the device's sealing. Third-party repair shops typically charge $15-30 for labor. For Motorola Moto Z3 battery health maintenance: 1) Use the original 15W TurboPower 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 Motorola Moto Z3 battery care tips, stop using immediately if the battery shows any swelling.

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