Description
Battery model: BN66 (Replaces OEM XM46020000B8LM)
Capacity: 6000mAh (Typical) / 23.2Wh
Rated voltage: 3.87V
Charge limit voltage: 4.4V
Battery type: Li-Polymer / Li-ion
Compatible with: Xiaomi Poco C40 (220333QPC)
Replaces OEM part number: BN66, XM46020000B8LM
Package include: 1 x battery
Keep your Xiaomi Poco C40 powered through the day with this BN66 6000mAh replacement battery. The Poco C40 was released in June 2022, featuring a 6.71-inch HD+ display, JLQ JR510 octa-core processor, and supports 18W fast charging via USB Type-C — the massive 6000mAh battery delivers up to 20 hours of video playback, 32 hours of talk time, or 17 hours of navigation on a single full charge. This Li-Polymer battery restores the factory-rated 6000mAh capacity and 23.2Wh energy, ensuring extended power for calls, streaming, gaming, and daily use.
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. The Poco C40 supports 18W fast charging — while the phone ships with a 10W charger, an 18W charger can fully charge the 6000mAh battery in approximately 2.5-3 hours. With a cycle life of 500+ full charge cycles, this replacement battery is designed for long‑term reliability. Professional installation is strongly recommended as the battery is not user‑replaceable.
Compatibility Note: Please power down your device and check your original battery label before ordering. This battery is compatible with Xiaomi Poco C40 (model 220333QPC) only. The phone 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 18W fast charging performance, use a certified 18W charger compatible with Xiaomi fast charging protocols. 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
✅ Built‑in Overcharge / Over‑discharge / Short Circuit / Overcurrent Protection
✅ 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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