Redmi Note 8 Battery
Overview
Product sourcing insights & recommendations
I have synthesized the latest product and market trends for the Redmi Note 8 battery (BN46) and Redmi Note 8 Pro battery (BM4J).
The market for these batteries is currently driven by a final major replacement wave as these "legendary" devices reach their 4–6 year usage limit. While official replacement costs remain between $35–$55, the B2B market offers wholesale options ranging from $2.50 to $11 depending on quantity and cell quality. A critical technical trend is the warning against "high-capacity" batteries (above 4,500mAh) which are often mislabeled and physically incompatible with the original chassis.
The detailed report below covers technical specifications, sourcing price bands, common consumer complaints like physical swelling, and strategic recommendations for verified 0-cycle battery sourcing.
Based on these insights, you can proceed with:
Redmi Note 8 Pro Battery Bm4j 4500mah
Products · 2 lists
Original Replacement Lithium-ion Polymer Battery BM4J for Xiaomi Redmi Note 8 Pro 4500mAh 3.85V
Guangzhou Xinyongyuan Electronic Technology Co., Ltd.verified🇨🇳CN5 yrs
Lithium Cell Polymer BM4J 4500mah 3.85V for Xiaomi Redmi Note 8 Pro Replaceable Battery
Shenzhen Longhehui Electronics Co., Ltd.verified🇨🇳CN6 yrs
NIBT Wholesale BM4J 4.40V 4500mAh 17.3Wh Lithium Mobile Phone Battery for xiaomi Redmi Note8Pro
Foshan Nebite Electronic Technology Co., Ltd.🇨🇳CN1 yr
DEJI Replacement Battery for xiaomi Redmi Note 8 PRO BM4J Mobile Phone Accessories
Shenzhen Huidafa Technology Co., Ltd.verified🇨🇳CN10 yrs
Manufacturer Direct Supply for RedMI Note 8 Pro Battery for Xiaomi Note Original Battery Cover BM4J 4500mAh for MI Brand Spare
Shenzhen Kingmax Technology Co., Ltd.🇨🇳CN5 yrs
Lithium Gb T18287 Cell Phone Battery for XIAOMI REDMI NOTE 8 PRO BM4J
Shenzhen Huidafa Technology Co., Ltd.verified🇨🇳CN18 yrs
OEM Factory BM4J 4000mAh Polymer Battery for Xiaomi/Xiaome Redmi Note 8 Pro 3.85V Mobile Phone Battery MSDS ROHS Certifications
Guangzhou Jinneng Communication Technology Co., Ltd.🇨🇳CN18 yrs
Bm4j Original Mobile Cell Phone Battery for Xiaomi Note 8 BM4J Genuine Lithium Ion Bateria
Shenzhen Sunwind Energy Tech Co., Ltd.🇨🇳CN11 yrs
REAL CAP Replacement Battery BM4J for Xiaomi Redmi Note 8 Pro Smartphone Red MI Note8 Pro Cell Phone Lithium Batteries Factory
Shenzhen Zhiling Electronic Technology Co., Ltd.🇨🇳CN2 yrs
FLYCDI OEM BM4J Battery For Xiaomi Redmi Note 8 Pro Smartphone Battery Production
Flycdi Co., Ltd.🇨🇳CN4 yrs
For for Redmi Note 12 Exploration Edition Mobile Phone Battery BP4H Large Capacity 4300mAh in Stock Wholesale
Shenzhen Fengda Qiangtong Technology Co., Ltd.🇨🇳CN2 yrs
396587 BN4A 4000mah Black Mobile Phone Battery for Xiaomi Redmi Note 7 Redmi Note 7s Redmi Note 7 Pro Compatible Phone Stock
Guangzhou Mydo Electronic Tech Ltd.🇨🇳CN11 yrsDeep Dive · Full Report
Full Market Report
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Sources & References
26 sources cited · Verified industry data & reports
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BloombergNEF
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Battery market size was estimated at $154.12 billion in 2025, and is projected to reach $554.83 billion by 2033, growing at a CAGR of 17.7% from 2026 to ...
Electric vehicle batteries – Global EV Outlook 2026
IEA – International Energy Agency
In 2025, EV battery deployment reached 1.2 TWh, an increase of almost 30% compared to 2024, and more than 7 times greater than in 2020. Light‑duty vehicles ...
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IDTechEx
This report forecasts growth in production capacity until 2031, and breaks down why so many gigafactories see delays and cancellations. A growing market.
Flash Battery is a Growth Leader 2026
Flash Battery
In this 8th edition of the award, Flash Battery ranks 281st, with an annual growth rate of 24.6%. Analysis of revenue over the 2021-2024 ...
8 Key Battery Trends Shaping 2026
PEM Motion
Stationary storage solutions are becoming a key growth market alongside electric mobility. Safety, lifetime, and cost stability are the main ...