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EB-BR800ABU 472mAh 3.85V Li-ion Polymer replacement battery for Samsung Galaxy Watch S4 SM-R800 and SM-R805, front view showing battery surface and small 2-pin connector
EB-BR800ABU 472mAh replacement battery for Samsung Galaxy Watch S4 SM-R800 and SM-R805, connector view showing the small 2-pin connector plug

EB-BR800ABU 472mAh 3.85V Battery for Samsung Galaxy Watch S4 SM-R800 SM-R805 Replacement

Original price was: $18.99.Current price is: $13.99.

🔘 EB-BR800ABU 472mAh 3.85V | 🔋 Li-ion Polymer | 📱 For Samsung Galaxy Watch S4 SM-R800/R805 Fast Charging

8 in stock

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SKU: EB-BR800ABU Category: Tags: , , , , ,
📦 Shipping, Warranty & After-Sales Information (Click to expand ▼)

✅ Why Our Warranty Stands Out

Unlike marketplace sellers with short buyer protection windows, we handle claims directly — no automated disputes, no endless back-and-forth.

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

✅ 472mAh High Capacity – Restores full battery life for Samsung Galaxy Watch S4 SM-R800 and SM-R805

✅ 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: EB-BR800ABU
Capacity: 472mAh (typical) / 1.82Wh
Rated voltage: 3.85V
Charge limit voltage: 4.4V
Battery type: Li-ion Polymer (Grade A cells)
Compatible with: Samsung Galaxy Watch S4 (SM-R800, SM-R805)
Package include: 1 x battery
Restore the reliable performance of your Samsung Galaxy Watch S4 with this EB-BR800ABU 472mAh replacement battery. Launched in August 2021, the Galaxy Watch S4 features a 1.4-inch Super AMOLED display, ECG monitoring, blood pressure tracking, and an IP68 water resistance rating. The SM-R800 and SM-R805 are the Wi‑Fi and LTE variants, respectively, both powered by a 472mAh battery designed for all‑day use. After years of daily charging cycles, the factory battery capacity naturally degrades. This Li‑ion Polymer battery restores the full 472mAh capacity, bringing back the dependable endurance this smartwatch 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 Wearable Performance: The Samsung Galaxy Watch S4 is built around a 472mAh battery that delivers approximately 40 hours of use on a single charge. After extended 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 EB-BR800ABU replacement battery restores the factory‑spec 472mAh 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 Samsung Galaxy Watch S4 models SM-R800 (Wi‑Fi) and SM-R805 (LTE) only. Please confirm your battery model before ordering — EB-BR800ABU is printed on your original battery. This battery is NOT compatible with Samsung Galaxy Watch S3, Galaxy Watch 5, Galaxy Watch 5 Pro, Galaxy Watch 6, or other Samsung wearable models. The Galaxy Watch S4 uses a distinct 472mAh 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 EB-BR800ABU 472mAh battery replacement is compatible with Samsung Galaxy Watch S4 SM-R800 (Wi‑Fi) and SM-R805 (LTE). If you need an EB-BR800ABU battery for Samsung Galaxy Watch S4 SM-R800 or an EB-BR800ABU battery for SM-R805, this replacement battery is the exact match. For EB-BR800ABU battery compatibility, please verify your battery model printed on the original unit — EB-BR800ABU is the correct model for these devices. This battery is NOT compatible with Samsung Galaxy Watch S3, Galaxy Watch 5, Galaxy Watch 5 Pro, Galaxy Watch 6, or other Samsung wearable models. If your current Galaxy Watch S4 battery now drains quickly or shuts down unexpectedly, this EB-BR800ABU 3.85V 472mAh Li‑ion Polymer battery will restore full endurance and reliability.

The EB-BR800ABU 472mAh battery for Samsung Galaxy Watch S4 SM-R800 and SM-R805 has a typical capacity of 472mAh (1.82Wh) and a rated voltage of 3.85V, with a charge limit of 4.4V. This EB-BR800ABU 3.85V 472mAh Li‑ion Polymer battery is built with grade A cells and is CE, RoHS, and UN38.3 certified. For EB-BR800ABU battery performance, the battery supports the original fast charging capability of the Galaxy Watch S4. For best EB-BR800ABU battery performance Galaxy Watch S4, allow 2‑3 full charge cycles after installation to calibrate the battery meter. If your original Galaxy Watch S4 SM-R800 battery now requires more frequent charging instead of lasting through the day, this replacement will restore the full 472mAh capacity and fast charging speed.

Professional EB-BR800ABU battery installation is recommended for Samsung Galaxy Watch S4 SM-R800 and SM-R805. The device has a sealed design with IP68 water resistance. To replace EB-BR800ABU battery in Galaxy Watch S4 SM-R800 or replace EB-BR800ABU battery in SM-R805, the technician must carefully open the rear cover using specialized tools to avoid damaging the display, ECG sensor, or internal components, disconnect the battery's small 2‑pin connector, remove the old battery, and install the new EB-BR800ABU battery before resealing to maintain the device's water resistance. For EB-BR800ABU battery installation, improper handling can damage the device's waterproofing or internal components. For EB-BR800ABU battery health maintenance and Galaxy Watch S4 battery care tips: 1) Use the original Samsung charger and cable for optimal charging. 2) Keep battery level between 20% and 80% for daily use to maximize the lifespan of the 472mAh 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 EB-BR800ABU battery care tips Galaxy Watch S4, stop using immediately if the battery shows any swelling.

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