Description
Battery model: BL-49KX
Capacity: 5000mAh / 19.35Wh
Rated voltage: 3.87V
Charge limit voltage: 4.45V
Battery type: Li-Polymer
Compatible with: Infinix Note 11 (X663), Note 12, Note 12 Pro, Note 12i (X6819), Note 12 5G (X671)
Package include: 1 x battery
Extend the life of your Infinix Note series with this high-density BL-49KX 5000mAh replacement battery. Compatible with various Infinix models such as Note 11, Note 12, and Note 12 Pro, this Li-Polymer battery matches the original specifications. It delivers a full day’s power, allowing you to stream, play games, and browse without constantly searching for a charger.
Safety meets performance with this Grade-A cell battery. It features multi-layer protection against overcharging, over-discharging, and short circuits. Rigorously tested and certified with CE, RoHS, and UN38.3 standards for global compatibility and safety. If your battery is swelling, draining rapidly, or your phone shuts down unexpectedly, this replacement is the solution.
Important Compatibility Note: Please power down your device and physically check the label on your old battery before ordering. Ensure the model number printed matches BL-49KX (and not BL-49FX which is for Hot series). For reference, third-party retailers sell this battery for approximately $13 to $18. Professional repair shops typically charge $15-$25 for installation service.
Battery Care Tips: Avoid frequent deep discharges (below 20%) to extend lifespan. Use a standard 5V/2A charger or the original Infinix charger for optimal health. New batteries require 3 to 5 full charge cycles to reach maximum capacity.
✅ Condition: Brand New – Never used, factory-tested quality
✅ 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
⚠️ 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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