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300mAh 3.8V Li-ion Polymer replacement battery for Samsung Gear 2 Neo R380, SM-R380, and SM-R381, front view showing battery surface and small 2-pin connector

300mAh Battery for Samsung Gear 2 Neo R380 SM-R380 R381 Replacement

Original price was: $20.99.Current price is: $16.99.

🔘 300mAh 3.8V | 🔋 Li-ion Polymer | 📱 For Samsung Gear 2 Neo R380 SM-R380 R381

8 in stock

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SKU: for Samsung Gear 2 Neo R380 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

✅ 300mAh High Capacity – Restores full battery life for Samsung Gear 2 Neo

✅ 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: For Samsung Gear 2 Neo
Capacity: 300mAh
Rated voltage: 3.8V
Charge limit voltage: 4.35V
Battery type: Li-ion Polymer (Grade A cells)
Compatible with: Samsung Gear 2 Neo R380, SM-R380, SM-R381
Package include: 1 x battery
Revive your Samsung Gear 2 Neo smartwatch with this 300mAh replacement battery. Launched in 2014, the Samsung Gear 2 Neo was one of Samsung’s most popular Tizen-based wearables, featuring a 1.63-inch Super AMOLED display, a 2-megapixel camera, and IP67 dust and water resistance. After years of daily charging cycles, the original battery capacity naturally degrades. This Li‑ion Polymer battery restores the full 300mAh capacity, bringing back the dependable runtime 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 Wearable Performance: The Samsung Gear 2 Neo was built for users who want a balance of style and functionality. Its 300mAh battery provided enough power for a full day of moderate use, covering notifications, fitness tracking, and camera functions. After years of use, the original battery capacity degrades significantly. Common symptoms include: the watch requiring daily charging instead of lasting through the day, unexpected shutdowns at 15‑25% battery remaining, slower charging than when new, or visible battery swelling. This replacement battery restores the factory‑spec 300mAh capacity and supports the original charging speed. 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 Samsung Gear 2 Neo models R380, SM-R380, and SM-R381 only. Please confirm your battery model before ordering — the original battery model is printed on your current battery. This battery is NOT compatible with Samsung Gear 2 (non‑Neo), Samsung Gear S series, Samsung Galaxy Watch series, or other Samsung wearables. The Gear 2 Neo uses a distinct 300mAh 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 300mAh battery replacement is compatible with Samsung Gear 2 Neo models R380, SM-R380, and SM-R381. If you need a 300mAh battery for Samsung Gear 2 Neo R380 or a Samsung Gear 2 Neo SM-R380 battery replacement, this battery is the exact match. For Samsung Gear 2 Neo battery compatibility, please verify your battery model printed on the original unit. This battery is NOT compatible with Samsung Gear 2, Gear S series, Galaxy Watch series, or other Samsung wearables. If your current Samsung Gear 2 Neo SM-R381 battery now drains quickly or shuts down unexpectedly, this 3.8V 300mAh Li‑ion Polymer battery will restore full endurance and reliability.

The 300mAh battery for Samsung Gear 2 Neo has a typical capacity of 300mAh and a rated voltage of 3.8V, with a charge limit of 4.35V. This 3.8V 300mAh Li‑ion Polymer battery is built with grade A cells and is CE, RoHS, and UN38.3 certified. For Samsung Gear 2 Neo battery performance, the battery supports the original charging speed of the device. For best Samsung Gear 2 Neo battery life after replacement, allow 2‑3 full charge cycles after installation to calibrate the battery meter. If your original Samsung Gear 2 Neo R380 battery now requires more frequent charging instead of lasting as it did when new, this replacement will restore the full 300mAh capacity and stable voltage output.

Professional battery installation is recommended for Samsung Gear 2 Neo. The device has a sealed design with IP67 dust and water resistance. To replace battery in Samsung Gear 2 Neo R380 or Samsung Gear 2 Neo SM-R381, the technician must carefully remove the back cover to avoid damaging the display or internal components, disconnect the battery's small 2‑pin connector, remove the old battery, and install the new battery before resealing to maintain the device's water resistance. For Samsung Gear 2 Neo battery installation, improper handling can damage the water resistance or internal components. For Samsung Gear 2 Neo battery health maintenance and battery care tips: 1) Use the original charger for optimal charging. 2) Keep battery level between 20% and 80% for daily use to maximize the lifespan of the 300mAh cell. 3) Avoid exposing the watch 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 watch until it auto‑shuts off, then charge uninterrupted to 100%. For Samsung Gear 2 Neo battery care tips, stop using immediately if the battery shows any swelling.

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