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432425 328mAh 3.87V Li-ion replacement battery for Fitbit GHK2A Smartwatch, front view showing battery surface and connector
432425 328mAh 3.87V replacement battery for Fitbit GHK2A Smartwatch, back view showing model number GHK2A, capacity 328mAh, and voltage 3.87V on spec label

432425 3.87V 328mAh Battery for Fitbit GHK2A Smartwatch

Original price was: $45.99.Current price is: $37.99.

🔘 432425 3.87V 328mAh | 🔋 Li-ion | 📱 For Fitbit GHK2A Smartwatch

8 in stock

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SKU: 432425 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$6.8015–25 days
Mexico$10.0020–35 days
Germany, France, United Kingdom$6.5018–30 days
Greece$6.5025–40 days
Austria, Belgium, Czech Republic, Denmark, Estonia, Hungary, Ireland, Italy, Luxembourg, Netherlands, Norway, Poland, Portugal, Slovakia, Spain, Sweden, Ukraine, Finland, Lithuania$8.0018–30 days
Switzerland$8.0025–35 days
Croatia, Latvia, Slovenia$8.0030–50 days
Bulgaria, Romania$14.0030–50 days
Moldova$14.0018–30 days
South Korea, Japan, Australia, New Zealand, Israel, Malaysia, Singapore, Thailand, Philippines, Kazakhstan$7.5018–30 days
United Arab Emirates, Saudi Arabia, Vietnam$18.0015–30 days
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 $6.19 (approx. €5.50) 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.

🎁 Combined Shipping Discount: Each additional battery in the same order is charged at 50% off the shipping rate.
🔋 Can't find your battery model? Use our FREE Battery Lookup Service – tell us your device and we'll find a match within 24 hours. 👉 battery.qingsm.tech/find-my-battery

Description

✅ Condition: New – Factory-tested quality & Warranty

✅ 328mAh High Capacity – Restores full battery life for Fitbit GHK2A

✅ 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: 432425 / GHK2A
Capacity: 328mAh / 1.27Wh
Rated voltage: 3.87V
Charge limit voltage: 4.45V
Battery type: Li-ion
Compatible with: Fitbit GHK2A Smartwatch
Package include: 1 x battery
Restore the reliable battery performance of your Fitbit GHK2A Smartwatch with this 328mAh replacement battery. The GHK2A is a compact Li-ion cell designed for smart wearables, powering daily activity tracking, notifications, and essential functions. After regular charging cycles, the original cell may show signs of aging, such as noticeably shorter runtime, sudden shutdowns during use, slower charging, or a swollen battery compartment. This 328mAh Li-ion battery is a direct replacement designed to bring back full daily power.
Designed for Reliable Daily Use: This battery uses high-density cell technology with multi-layer safety protection against overcharge, over-discharge, and short circuits. It is factory-tested and carries CE, RoHS, and UN38.3 certification. With 328mAh capacity and 3.87V rated voltage, it provides 1.27Wh of energy and supports stable performance for daily wearable use.
Compatibility Note: This 328mAh Li-ion battery is a compatible replacement for the Fitbit GHK2A Smartwatch. Because third-party replacement batteries can vary by batch, and smartwatch batteries are often paired with specific adhesive gaskets or connectors, please confirm the battery dimensions, connector type, and voltage match your original cell before installation. Professional installation is strongly recommended for sealed smartwatch designs. Using an incorrect battery may cause improper fit, charging issues, or loss of water resistance.
Battery Care Tips: Use a compatible charger, avoid extreme heat or cold, and try not to drain the battery to 0% often. For daily use, keep the battery level between 20% and 80% when possible. If you store the watch for a long time, keep the battery at around 50%. After replacing the battery, check that the watch case is resealed correctly to maintain water resistance. If you are not confident, ask a professional technician to do the replacement.

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Frequently Asked Questions

The 432425 328mAh 3.87V battery is a Li-ion replacement battery for the Fitbit GHK2A Smartwatch. This replacement cell provides 328mAh capacity at 3.87V. Please compare the physical dimensions and connector type with your original battery before ordering, as third-party replacements may require minor fitting. If your current battery label shows GHK2A, this is the matching replacement.

The 432425 328mAh 3.87V battery has a capacity of 328mAh / 1.27Wh and a rated voltage of 3.87V, with a charge limit of 4.45V. This Li-ion battery is factory-tested and carries CE, RoHS, and UN38.3 certification. It is designed as a compatible replacement for the Fitbit GHK2A Smartwatch, offering stable discharge performance for daily use.

Professional installation is strongly recommended for the 432425 battery in the Fitbit GHK2A Smartwatch. Devices requiring this battery typically have sealed housings with delicate internal components and adhesive gaskets. The technician must open the case carefully, disconnect the old battery, and install the new cell with the correct polarity before resealing. For battery care tips: use a compatible charger, avoid extreme temperatures, keep the battery level between 20% and 80% for daily use, and store at around 50% for long-term storage. Stop using immediately if the battery shows any swelling. After installation, check the case seal to maintain water resistance.

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This battery is in stock and ready to ship within 3-7 days. 90-day warranty included.

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