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BM50 5300mAh 3.85V Li-Polymer replacement battery for Xiaomi Mi Max 2, front view on white background showing battery surface and connector flex cable

BM50 5300mAh 3.85V Li-Polymer Replacement Battery for Xiaomi Mi Max 2 9V/2A Quick Charge 3.0

Original price was: $20.99.Current price is: $16.99.

🔘 BM50 5300mAh 3.85V | 🔋 Li-Polymer | 📱 Compatible with Xiaomi Mi Max 2 9V/2A Quick Charge 3.0

8 in stock

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SKU: BM50 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
Ireland, Austria, Belgium, Poland, Denmark, Switzerland, Portugal, Norway, Slovakia, Spain, Hungary, Italy, Czech Republic, Luxembourg, Netherlands, Sweden, Cyprus$8.0018–30 days
Croatia, Finland, Lithuania, Latvia, Slovenia$8.0030–50 days
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.

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Description

✅ 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

✅ 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: BM50
Capacity: 5300mAh (Typical) / 20.4Wh | 5200mAh (Rated)
Rated voltage: 3.85V
Charge limit voltage: 4.4V
Battery type: Li-Polymer / Li-ion
Compatible with: Xiaomi Mi Max 2
Replaces OEM part number: BM50
Package include: 1 x battery
Restore the battery life of your Xiaomi Mi Max 2 with this BM50 5300mAh replacement battery. Released in May 2017, the Xiaomi Mi Max 2 features a massive 6.44-inch Full HD display, Snapdragon 625 processor, and originally came with a 5300mAh battery — offering up to 18 hours of video playback and 57 hours of talk time on a single charge. This Li-Polymer battery delivers the factory-rated 5300mAh capacity for extended all-day usage.
Built with high-quality 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 BM50 battery supports Qualcomm Quick Charge 3.0 with parallel charging technology, allowing the phone to charge up to 68% in just one hour. The original charger supports 9V/2A output, ensuring fast and efficient charging. For reference, third-party retailers sell this battery for approximately $20 to $34.
Compatibility Note: Please power down your device and check your original battery label before ordering. Ensure the model number printed matches BM50. This battery is compatible with Xiaomi Mi Max 2 only — the original Mi Max uses BM49 (4850mAh), which is not compatible. Professional installation is recommended as the phone has a sealed metal back cover with strong adhesive.
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 Quick Charge 3.0 performance, use the original charger that came with your phone. If you don’t use the battery 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.

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Frequently Asked Questions

The BM50 battery for Xiaomi Mi Max 2 is compatible with Xiaomi Mi Max 2 only. The Xiaomi Mi Max 2 was released in May 2017 featuring a 6.44-inch Full HD display and Snapdragon 625 processor. This 5300mAh battery for Xiaomi Mi Max 2 is a direct replacement for the original BM50 battery. Important: The original Xiaomi Mi Max (first generation) uses a different BM49 battery with 4850mAh capacity — this BM50 battery is not compatible with the first-generation Mi Max. If your Mi Max 2 battery replacement is needed because the phone drains quickly or won't hold a charge, this is the correct battery. Please verify your device model in Settings > About Phone and check the battery model BM50 printed on your existing battery before purchasing.

The BM50 5300mAh 3.85V battery has a typical capacity of 5300mAh (20.4Wh) and a rated capacity of 5200mAh. Rated voltage is 3.85V, charge limit voltage is 4.4V. It is a Li-Polymer battery built with Grade A cells and is CE, RoHS, and UN38.3 certified. The Xiaomi Mi Max 2 supports Qualcomm Quick Charge 3.0 with parallel charging technology — the original charger supports 5V/3A, 9V/2A, and 12V/1.5A output. With Quick Charge 3.0, the phone can charge from 0% to 68% in approximately one hour. The huge 5300mAh battery offers up to 18 hours of video playback or 57 hours of talk time on a single charge.

Professional installation is strongly recommended for Xiaomi Mi Max 2 battery installation. The Mi Max 2 has a sealed design with a metal back cover secured by strong adhesive. The process to replace BM50 battery in Xiaomi Mi Max 2 requires heating to soften adhesive and careful prying to avoid damaging the display or back cover. The phone is not water resistant (no IP rating), so water seal maintenance is not a concern after replacement. If you choose DIY phone battery replacement, watch a full teardown tutorial before starting, use a heat gun at low temperature (no more than 70°C), and never reuse a battery after removal. Third-party repair shops typically charge $15-30 for labor.

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