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HB681636ECW 410mAh 3.82V Li-ion replacement battery for Huawei FreeBuds 3 charging case, front view showing battery label
HB681636ECW 410mAh 3.82V replacement battery for Huawei FreeBuds 3 charging case, back view showing model number HB681636ECW, capacity 410mAh, and voltage 3.82V on spec label

HB681636ECW 410mAh 3.82V Li-ion Replacement Battery for Huawei FreeBuds 3 Charging Case

Original price was: $14.99.Current price is: $11.99.

🔘 HB681636ECW 410mAh 3.82V | 🔋 Li-ion | 📱 Compatible with Huawei FreeBuds 3 Charging Case

8 in stock

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SKU: hb681636ecw 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

✅ 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

⚠️ Low Stock Alert: Only 8 left in stock. Order now to avoid waiting.

Battery model: HB681636ECW
Capacity: 410mAh / 1.56Wh
Rated voltage: 3.82V
Charge limit voltage: 4.4V
Battery type: Li-ion
Compatible with: Huawei FreeBuds 3 Charging Case (CM-H1C)
Package include: 1 x battery
Restore the charging capability of your Huawei FreeBuds 3 charging case with this HB681636ECW 410mAh replacement battery. Released in 2019, the FreeBuds 3 features the Kirin A1 chip, open-fit active noise cancellation (up to 15dB), 4 hours of music playback per charge, and up to 20 hours total with the charging case. The case supports both USB Type-C (5V/1.2A) and Qi wireless charging. This Li-ion battery delivers the factory-rated 410mAh capacity. For reference, third‑party retailers sell this battery for approximately $13 to $22.
Built with Grade A Li-ion cells and multi-layer safety protection against overcharge, over-discharge, short circuit, and overcurrent. CE, RoHS, and UN38.3 certified for safe transport and use. With a cycle life of 500+ full charge cycles, this replacement battery is designed for long-term reliability. Professional installation is recommended — the charging case is sealed and requires soldering for battery replacement.
Compatibility Note: Please check your original battery label before ordering. This battery is compatible with Huawei FreeBuds 3 charging case (model CM-H1C). The battery is not user‑replaceable — professional installation with soldering is strongly recommended as the case has a sealed design.
Battery Care Tips: Avoid full discharge — keep battery level above 20%. Do not expose to high temperatures or direct sunlight. New batteries require 3-5 full charge cycles to reach optimal capacity. If you don’t use the charging case for a long time, store it in a dry and cool place and charge it fully once every three months. If you notice swelling or overheating, stop use immediately.

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Frequently Asked Questions

The HB681636ECW battery for Huawei FreeBuds 3 is compatible with the Huawei FreeBuds 3 charging case (model CM-H1C). The FreeBuds 3 was released in 2019 featuring the Kirin A1 chip, open-fit active noise cancellation (up to 15dB), 4 hours of music playback per charge, and up to 20 hours total with the charging case. The case supports both USB Type-C (5V/1.2A) and Qi wireless charging. This HB681636ECW replacement battery for Huawei FreeBuds 3 charging case delivers the factory-rated 410mAh capacity. If your FreeBuds 3 charging case battery replacement is needed because the case drains quickly or won't hold a charge, this is the correct battery. Please check the battery model HB681636ECW printed on your original battery before purchasing.

The HB681636ECW 410mAh 3.82V battery has a typical capacity of 410mAh (1.56Wh) and a rated voltage of 3.82V. Charge limit voltage is 4.4V. It is a Li-ion battery built with Grade A cells and is CE, RoHS, and UN38.3 certified. The HB681636ECW 410mAh 3.82V Li-ion battery supports both wired USB Type-C (5V/1.2A) and Qi wireless charging for the case — a full charge takes approximately 1 hour for the case. With a cycle life of 500+ full charge cycles, this HB681636ECW replacement battery is designed for long-term durability. For best results, always use the original USB Type-C cable or a Qi-certified wireless charger.

Professional installation is strongly recommended for Huawei FreeBuds 3 charging case battery replacement. The charging case has a sealed design — the process requires heating to soften adhesive, careful opening of the case using plastic tools, disconnecting the battery FPC connector, desoldering the old battery leads, and soldering the new HB681636ECW battery in place (red to positive, black to negative). The case has no official IP water resistance rating, so water seal maintenance is not a concern. If you choose DIY battery replacement, watch a full teardown tutorial before starting, use a soldering iron with temperature control (≤300°C), and never reuse a battery after removal. Third-party repair shops typically charge $15-25 for labor.

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