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5150mAh 3.87V Li-ion Polymer replacement battery for Oukitel C37, bare cell without label, front view showing battery surface and small 2-pin connector

5150mAh 3.87V Battery for Oukitel C37 Replacement

Original price was: $44.99.Current price is: $37.99.

🔘 5150mAh 3.87V | 🔋 Li-ion Polymer | 📱 For Oukitel C37

8 in stock

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SKU: C37 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

✅ 5150mAh High Capacity – Restores full battery life for Oukitel C37

✅ 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: C37
Capacity: 5150mAh (typical) / 19.93Wh
Rated voltage: 3.87V
Charge limit voltage: 4.45V
Battery type: Li-ion Polymer (Grade A cells)
Product condition: Bare cell, no label
Compatible with: Oukitel C37
Package include: 1 x battery
Restore the reliable battery performance of your Oukitel C37 with this 5150mAh replacement battery. The Oukitel C37 is designed for everyday use with a large 5150mAh battery that supports extended daily runtime. After 1-2 years of regular charging cycles, the original battery’s capacity naturally declines. This Li-ion Polymer battery restores the full 5150mAh capacity, bringing back the consistent daily 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 5150mAh battery in the Oukitel C37 originally provided dependable endurance for calls, messaging, browsing, video playback, and daily tasks. 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 Oukitel C37 without interruption. The battery uses advanced high-density cell technology with multi-layer safety protection, ensuring reliable performance for years to come.
Compatibility Note: Fits Oukitel C37 only. This battery is a bare cell without a label — the model number is not printed on the surface. Please confirm your device model and compare the physical dimensions of your original battery before ordering. Verify that your current battery matches the rated voltage (3.87V) and capacity (5150mAh / 19.93Wh). Using an incorrect battery model may cause improper fit, charging issues, or incorrect battery reporting.

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Frequently Asked Questions

This 5150mAh battery for Oukitel C37 is compatible with Oukitel C37 only. If you need an Oukitel C37 battery replacement, this 5150mAh battery is the exact match. For Oukitel C37 battery compatibility, please verify your device model in Settings > About Phone or compare the physical dimensions of your original battery. Important: This is a bare cell without a label — the model number is not printed on the battery surface. The Oukitel C37 features a 5150mAh battery designed for extended daily use. If your Oukitel C37 battery no longer holds charge as it did when new or shuts down unexpectedly, this Oukitel C37 replacement battery will restore the full performance.

This 5150mAh battery for Oukitel C37 has a typical capacity of 5150mAh (19.93Wh) and a rated voltage of 3.87V, with a charge limit of 4.45V. This 3.87V 5150mAh Li-ion Polymer battery is built with Grade A cells and is CE, RoHS, and UN38.3 certified. Oukitel C37 battery specifications are designed for reliable daily performance. Important: This battery is a bare cell without a label paper attached — the specifications are not printed on the battery surface. For best performance, allow 2-3 full charge cycles after installation to calibrate the battery meter. If your original Oukitel C37 battery now requires more frequent charging than when new, this replacement will restore the original capacity.

Professional Oukitel C37 battery installation is recommended. The Oukitel C37 has a sealed design with an internal battery. To replace the Oukitel C37 battery, the technician must heat the back cover to soften adhesive, carefully pry it open to avoid damaging the display or frame, disconnect the battery's small 2-pin connector, remove the old battery, and install the new 5150mAh battery before resealing the device. Important: This battery is a bare cell without a label — ensure correct orientation during installation. For Oukitel C37 battery installation, improper handling can damage the display or compromise the device's sealing. Third-party repair shops typically charge $15-30 for labor. For Oukitel C37 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 5150mAh 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 Oukitel C37 battery care tips, stop using immediately if the battery shows any swelling.

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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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