FLPB342735-P1 380mAh 3.7V Li-Polymer replacement battery for Garmin Fenix 3 and Fenix 3 HR watch, front view, white background
FLPB342735-P1 380mAh 3.7V replacement battery for Garmin Fenix 3 HR watch, back view showing model number and specifications

FLPB342735-P1 380mAh 3.7V Replacement Battery for Fenix 3 / Fenix 3 HR Watch

$8.99

🔘 FLPB342735-P1 380mAh 3.7V | 🔋 Li-Polymer | ⌚ For Garmin Fenix 3 / Fenix 3 HR

8 in stock

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SKU: FLPB342735-P1 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, premium quality

✅ CE / RoHS / UN38.3 Certified – Safety tested

✅ 90-Day Warranty – Hassle-free replacement

✅ Ships in 3-7 days with tracking – Fast delivery

🛡️ Shipping Protection Available at Checkout – Covered against loss, damage, or theft

✅ PayPal Buyer Protection included – Secure checkout

✅ 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: FLPB342735-P1
Battery capacity: 380mAh / 1.41Wh
Rated voltage: 3.7V
Charge limit voltage: 4.2V
Battery type: Li-Polymer
Compatible with: Garmin Fenix 3, Garmin Fenix 3 HR
Package include: 1 x battery
Extend the life of your Garmin Fenix 3 or Fenix 3 HR multisport GPS watch with this FLPB342735-P1 380mAh replacement battery. Designed specifically for these premium adventure watches, this Li-Polymer cell delivers reliable power for tracking your runs, swims, hikes, and heart rate monitoring. Built-in multi-layer safety protection guards against overcharge, over-discharge, and short circuits. Made with grade A cells. CE, RoHS, and UN38.3 certified for safety compliance. Professional installation recommended as the watch battery is not user-replaceable.
Compatibility Note: Fits Garmin Fenix 3 and Fenix 3 HR only. Please check your original battery model before purchasing. The Fenix 3 series features a 1.2-inch sunlight-readable display and EXO antenna for GPS/GLONASS support.
Battery Care Tips: Avoid full discharge (keep above 20%). Keep away from high temperatures. If swelling occurs, stop use immediately. For optimal battery life, use the original Garmin charging cable that came with your watch.

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Frequently Asked Questions

You can find a reliable FLPB342735-P1 replacement battery for Garmin Fenix 3 here. This 380mAh Li-Polymer cell is specifically designed for the Fenix 3 and Fenix 3 HR multisport GPS watches. If your Fenix 3 battery is draining too fast or not holding a charge, this is the correct replacement. Please check your original battery model before purchasing.

The 380mAh battery for Garmin Fenix 3 HR has a full capacity of 380mAh (1.41Wh) at 3.7V with a charge limit of 4.2V. If you're looking for a high-capacity replacement battery for Fenix 3 HR to support GPS tracking, heart rate monitoring, and extended outdoor activities, this Li-Polymer cell is a compatible choice. Made with grade A cells, CE, RoHS, and UN38.3 certified.

Yes, this FLPB342735-P1 replacement battery is specifically designed for the Garmin Fenix 3 and Fenix 3 HR. If you're looking for a battery for Garmin Fenix 3 that maintains consistent performance for GPS/GLONASS tracking and 1.2-inch sunlight-readable display, this 380mAh Li-Polymer cell is a reliable choice. For best results, use the original Garmin charging cable.

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