Sale!
LT25H426271B 2550mAh 3.85V Li-ion Polymer replacement battery for Radiant Core U304AA, front view showing battery surface and small 2-pin connector
LT25H426271B 2550mAh 3.85V replacement battery for Radiant Core U304AA, back view showing model number LT25H426271B, capacity 2550mAh, and voltage 3.85V on spec label

LT25H426271B 2550mAh 3.85V Battery for Radiant Core U304AA Replacement

Original price was: $16.99.Current price is: $13.99.

🔘 LT25H426271B 2550mAh 3.85V | 🔋 Li-ion Polymer | 📱 For Radiant Core U304AA 1-1.5 Day Battery Life

8 in stock

No PayPal account? 💳 Pay with credit/debit card | 🛡️ PayPal Buyer Protected
SKU: LT25H426271B 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.

🔋 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: Brand New – Never used, factory-tested quality

✅ 2550mAh High Capacity – Restores full battery life for Radiant Core U304AA

✅ 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: LT25H426271B
Capacity: 2550mAh (typical) / 9.82Wh
Rated voltage: 3.85V
Charge limit voltage: 4.4V
Battery type: Li-ion Polymer (Grade A cells)
Compatible with: Radiant Core U304AA
Package include: 1 x battery
Restore the reliable battery performance of your Radiant Core U304AA with this LT25H426271B 2550mAh replacement battery. The Radiant Core U304AA is a compact and practical mobile device designed for everyday communication and essential smartphone tasks. After 1-2 years of daily charging cycles, the original battery’s capacity naturally degrades. This Li-ion Polymer battery restores the full 2550mAh capacity, bringing back the dependable daily endurance this device was designed 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 Radiant Core U304AA is built for users who need a dependable device for calls, messaging, and essential apps throughout the day. The 2550mAh battery originally provided approximately 1-1.5 days of moderate use and up to 10-12 hours of continuous talk time or media playback. After years of charging cycles, battery capacity degrades significantly. Common symptoms include: the device requiring daily charging instead of lasting through the day, 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 relying on your Radiant Core U304AA for consistent daily performance. The LT25H426271B battery uses advanced cell technology with multi-layer safety protection, ensuring reliable performance for years to come.
Compatibility Note: Fits Radiant Core U304AA only. Please confirm your battery model before ordering — LT25H426271B is printed on your original battery. This battery is NOT compatible with other Radiant Core models, U304AA Plus, or other mobile devices. The U304AA uses a distinct 2550mAh battery with specific dimensions and connector type; using a different battery model may cause charging issues or incorrect battery reporting.

Discover more from Battery.qingsm.tech

Subscribe to get the latest posts sent to your email.

Reviews

There are no reviews yet.

Be the first to review “LT25H426271B 2550mAh 3.85V Battery for Radiant Core U304AA Replacement”

Your email address will not be published. Required fields are marked *
To receive the "Verified Owner" badge, please use the same email address you used when placing your order.

Frequently Asked Questions

The LT25H426271B battery for Radiant Core U304AA is compatible with Radiant Core U304AA only. If you need a Radiant Core U304AA battery replacement, this LT25H426271B 2550mAh battery is the exact match. The U304AA is a practical everyday device known for reliable call quality and essential smartphone features. For LT25H426271B battery for Radiant Core U304AA compatibility, please verify your device model by checking Settings > About Phone or by removing the back cover to inspect the original battery label. This battery is NOT compatible with other Radiant Core models, U304AA Plus, or any other mobile devices. If your Radiant Core U304AA battery no longer lasts a full day on a single charge or shuts down unexpectedly at low battery levels, this LT25H426271B replacement battery will restore full performance.

The LT25H426271B 2550mAh battery for Radiant Core U304AA has a typical capacity of 2550mAh (9.82Wh) and a rated voltage of 3.85V, with a charge limit of 4.4V. This LT25H426271B 3.85V 2550mAh Li-ion Polymer battery is built with grade A cells and is CE, RoHS, and UN38.3 certified. For Radiant Core U304AA battery life after replacement, expect approximately 1-1.5 days of moderate use on a single charge. The Radiant Core U304AA 2550mAh battery performance provides reliable endurance for calls, messaging, web browsing, and essential daily tasks. For best performance, allow 2-3 full charge cycles after installation to calibrate the battery meter. If your original battery now requires daily charging instead of lasting through the day, this replacement will restore the original endurance.

Professional Radiant Core U304AA battery installation is recommended. The Radiant Core U304AA has a sealed or adhesive-backed design that requires careful opening. To replace Radiant Core U304AA battery, the technician must heat the back cover to soften adhesive, carefully pry it open to avoid damaging the display or internal components, disconnect the battery's small 2-pin connector, remove the old battery, and install the new LT25H426271B battery before resealing. For LT25H426271B battery installation Radiant Core U304AA, improper handling can damage the device or compromise its sealing. Third-party repair shops typically charge $15-30 for labor. For Radiant Core U304AA battery health maintenance: 1) Use a quality charger and cable for optimal charging. 2) Keep battery level between 20% and 80% for daily use to maximize the lifespan of the 2550mAh 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 Radiant Core U304AA battery care tips, stop using immediately if the battery shows any swelling.

Related products

✅ Ready to order?

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

👉 Add to Cart Now