Description
Battery model: BT41 (Replaces N0004720, US525972H4)
Capacity: 3350mAh (Typical) / 12.73Wh
Rated voltage: 3.8V
Charge limit voltage: 4.35V
Battery type: Li-Polymer
Dimensions: 69.85 x 58.20 x 4.54mm
Weight: 50g
Cycle life: 500+ cycles retains ≥80% capacity
Compatible with: Meizu MX4 Pro (M462, MX4SWDS0, M462U), Meizu MX4
Package include: 1 x battery
Restore the powerful performance of your Meizu MX4 Pro with this BT41 3350mAh replacement battery. The Meizu MX4 Pro was released in November 2014 as a flagship device, featuring a 5.5-inch 2K+ display (2560×1536 resolution) with 76.5% screen-to-body ratio, Samsung Exynos 5430 octa-core processor, 3GB RAM, and a 20.7MP Sony rear camera. This Li-Polymer battery delivers the factory-rated 3350mAh capacity — providing all-day power for calls, messaging, multimedia, and gaming.
Built with Grade A Li-Polymer cells and multi-layer safety protection against overcharge, over-discharge, short circuit, and overcurrent. CE, RoHS, and UN38.3 certified for safe transport and use. With a cycle life of 500+ full charge cycles, this replacement battery is designed for long-term reliability. The battery is non-removable — professional installation is strongly recommended as the phone has a sealed design with strong adhesive.
Compatibility Note: Please power down your device and check your original battery label before ordering. Ensure the model number printed matches BT41. This battery is compatible with Meizu MX4 Pro (models M462, MX4SWDS0, M462U) and Meizu MX4. The device has no official IP water resistance rating, so water seal maintenance is not a concern after replacement.
Battery Care Tips: Avoid full discharge — keep battery level above 20%. Do not expose to high temperatures or direct sunlight. New batteries require 3-5 full charge cycles to reach optimal capacity. For best charging performance, use the original charger that came with your phone. If you don’t use the device for a long time, store it in a dry and cool place and charge it fully once every three months. If you notice swelling or overheating, stop use immediately.
✅ Condition: Brand New – Never used, factory‑tested quality
✅ CE / RoHS / UN38.3 Certified – Grade A cells for true 3350mAh capacity
✅ Built‑in Overcharge / Over‑discharge / Short Circuit Protection
✅ 500+ Cycle Life – Designed for long-term durability
✅ 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.
✅ 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 Period | 90 days from delivery | 15-30 days from order confirmation |
| When It Starts | 📦 Upon delivery | ⚠️ Upon order confirmation (even before you receive it) |
| Claims Handling | We do it directly — email us | Automated dispute system, seller dependent |
| After Window Expires | Still can contact us for support | No 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; actual delivery may be affected by customs, weather, or other unforeseen circumstances.
| Destination | Freight (USD) | Est. Delivery Time |
|---|---|---|
| United States | $7.80 | 8-20 days |
| Canada | $6.80 | 18-45 days |
| Mexico | $10.00 | 30-60 days |
| Germany, France, United Kingdom, Greece | $6.50 | 18-45 days |
| Ireland, Austria, Belgium, Poland, Denmark, Switzerland, Portugal, Norway, Slovakia, Spain, Hungary, Italy, Czech Republic, Luxembourg, Netherlands, Sweden, Cyprus | $8.00 | 18-45 days |
| Croatia, Finland, Lithuania, Latvia, Slovenia | $8.00 | 30-60 days |
| Romania | $14.00 | 30-60 days |
| South Korea, Japan, Australia, New Zealand, Israel, Malaysia, Singapore, Thailand, Philippines, Kazakhstan | $7.50 | 18-45 days |
| United Arab Emirates, Saudi Arabia, Vietnam, Chile, Peru, Colombia, Brazil | $18.00 | 25-60 days |
* Delivery times are estimates; actual delivery may be affected by customs or other factors. If your country is not listed, we are currently unable to ship batteries to that destination.
🇧🇷 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.
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