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BAT25M21SE8350 8350mAh 3.87V Li-ion Polymer replacement battery for Doogee Fire 3, Fire 3 Pro, and Fire 3 Ultra, front view showing battery surface and small 2-pin connector

BAT25M21SE8350 8350mAh 3.87V Battery for Doogee Fire 3 Fire 3 Pro Fire 3 Ultra Replacement

Original price was: $47.99.Current price is: $39.99.

🔘 BAT25M21SE8350 8350mAh 3.87V | 🔋 Li-ion Polymer | 📱 For Doogee Fire 3 / Fire 3 Pro / Fire 3 Ultra

8 in stock

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SKU: BAT25M21SE8350 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, Czech Republic, Denmark, Estonia, Hungary, Ireland, Italy, Luxembourg, Netherlands, Norway, Poland, Portugal, Slovakia, Spain, Sweden, Switzerland, Ukraine$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: New – Factory-tested quality & Warranty

✅ 8350mAh High Capacity – Restores full battery life for Doogee Fire 3 / Fire 3 Pro / Fire 3 Ultra

✅ 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: BAT25M21SE8350
Capacity: 8350mAh (typical) / 32.3Wh
Rated voltage: 3.87V
Charge limit voltage: 4.45V
Battery type: Li-ion Polymer (Grade A cells)
Compatible with: Doogee Fire 3, Doogee Fire 3 Pro, Doogee Fire 3 Ultra
Package include: 1 x battery
Restore the reliable battery performance of your Doogee Fire 3 series device with this BAT25M21SE8350 8350mAh replacement battery. The Fire 3, Fire 3 Pro, and Fire 3 Ultra are rugged smartphones designed for outdoor and demanding environments, featuring a 5.5-inch HD+ display and IP68/IP69K water and dust resistance. After 1-2 years of regular charging cycles, the original battery’s capacity naturally declines. This Li-ion Polymer battery restores the full 8350mAh capacity, bringing back the multi-day endurance your device was built 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 Daily Use: The 8350mAh battery in the Doogee Fire 3 series originally provided exceptional endurance for outdoor work, travel, and heavy daily usage. The Fire 3 Ultra supports 18W fast charging for quick recharging. After years of charging cycles, battery capacity degrades significantly. Common symptoms include: the device requiring more frequent charging than when new, unexpected shutdowns at 15-20% battery remaining, slower charging than when new, or visible battery swelling. This replacement restores the original endurance, allowing you to continue using your Doogee Fire 3 series device without interruption. The BAT25M21SE8350 battery uses advanced high-density cell technology with multi-layer safety protection, ensuring reliable performance for years to come.
Compatibility Note: Fits Doogee Fire 3, Doogee Fire 3 Pro, and Doogee Fire 3 Ultra only. Please confirm your battery model before ordering — BAT25M21SE8350 is printed on your original battery. Verify that your current battery matches the model number, rated voltage (3.87V), and capacity (8350mAh / 32.3Wh). Using an incorrect battery model may cause improper fit, charging issues, or incorrect battery reporting. These devices feature IP68/IP69K water and dust resistance — professional installation is recommended to maintain the device’s sealing after battery replacement.

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Frequently Asked Questions

The BAT25M21SE8350 battery for Doogee Fire 3 is compatible with Doogee Fire 3, Doogee Fire 3 Pro, and Doogee Fire 3 Ultra. If you need a Doogee Fire 3 battery replacement or Doogee Fire 3 Pro battery replacement, this BAT25M21SE8350 8350mAh battery is the exact match. For BAT25M21SE8350 battery for Doogee Fire 3 compatibility, please verify your device model in Settings > About Phone or check the label on your original battery — the model number BAT25M21SE8350 is printed there. The Fire 3, Fire 3 Pro, and Fire 3 Ultra share the same 8350mAh battery design. If your Doogee Fire 3 series battery no longer holds charge as it did when new or shuts down unexpectedly, this BAT25M21SE8350 replacement battery will restore the full performance.

The BAT25M21SE8350 8350mAh battery for Doogee Fire 3 has a typical capacity of 8350mAh (32.3Wh) and a rated voltage of 3.87V, with a charge limit of 4.45V. This BAT25M21SE8350 3.87V 8350mAh Li-ion Polymer battery is built with Grade A cells and is CE, RoHS, and UN38.3 certified. BAT25M21SE8350 battery specifications include support for 18W fast charging on the Fire 3 Ultra. For best performance, allow 2-3 full charge cycles after installation to calibrate the battery meter. If your original Doogee Fire 3 series battery now requires more frequent charging than when new, this Doogee replacement battery will restore the original capacity.

Professional Doogee Fire 3 battery installation is recommended. The Fire 3 series devices are rugged smartphones with IP68/IP69K water and dust resistance. To replace Doogee Fire 3 battery BAT25M21SE8350, the technician must carefully open the device following proper procedures to avoid damaging the sealing, disconnect the battery's small 2-pin connector, remove the old battery, and install the new BAT25M21SE8350 battery before resealing the device with proper gaskets and adhesive. For BAT25M21SE8350 battery installation Doogee Fire 3, improper handling can damage the water resistance seal or compromise the device's protection. Water resistance maintenance is critical — after battery replacement, the device must be properly resealed to preserve IP68/IP69K protection. Authorized service centers are recommended. For Doogee Fire 3 battery health maintenance: 1) Use the original charger and cable for optimal charging. 2) Keep battery level between 20% and 80% for daily use to maximize the lifespan of the 8350mAh cell. 3) Avoid exposing the device 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 device until it auto-shuts off, then charge uninterrupted to 100%. For Doogee Fire 3 battery care tips, stop using immediately if the battery shows any swelling.

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