Industrial Phone Battery for Xiaomi Redmi Pro BM4A Commercial Wholesale Ordering

B2B Wholesale Only • Minimum Order: 5 pcs / Model

Capacity: 4000mAh standard
PCB: High-Quality/ Decode Chip PCB Available

✔ 100% Brand New, 0 Cycle
✔ <0.3% Low Return Rate
✔ >500 times Cycle Life
✔ 12 Months Warranty
✔ 2-5 Days Production Time
✔ Professional QC Testing
✔ Private Label & Packing Available
✔ OEM Available
✔ Stable Performance Across Batches
✔ Stable Supply for Bulk Orders

100% Pure B2B Battery Wholesale. No retail competition. Direct-from-source cell sourcing saves you 10%+ on local cargo costs.
Phone Battery for Xiaomi Redmi Pro BM4A Details 
Specification Details
Compatible Model:For Xiaomi Redmi Pro
Battery Type:Premium Lithium-ion (Li-ion)
Capacity:4000mAh standard
Standard Voltage:3.85V
Condition:100% Brand New, 0 Cycle
Cycle Life:>500 times
Cell Material:100% Pure Cobalt Cell
Cell Brand:ATL, Dianming, Guangyu, Samsung, Liwei, Ganfeng, Veken, Fenghua and Lishen available
PCB:High-end protection boards and decoding protection boards available
Working Temperature:-10°C ~ 50°C
Warranty Policy:12-Month
MOQ:Flexible
OEM:Available

The Redmi Pro features a rigid brushed-aluminum rear cover with tight internal tolerance. How does your factory prevent the BM4A cells from causing screen lifting or frame distortion?

Maintaining strict thickness and dimension control in metal-unibody devices leaves zero margin for physical processing errors. Screen lifting and frame pressure displacement occur because generic market trading brokers distribute cheap, unevenly pressed clearance lots to maximize their short-term profits. Times Electronic eliminates this structural liability completely. Following our strict engineering workflow, we enforce two strict parts matching and use premium high-density lithium packs compressed to precise original millimeter specifications. This ensures our BM4A modules sit entirely flat without putting stress on the metal chassis, effectively protecting your localized shop profits.

Older large-capacity legacy batteries in the market often arrive dead or experience sudden cliff-style power drops. What batch quality guarantees do you maintain?

We eliminate the stale inventory risk by entirely rejecting old market clearance stock that has degraded on warehouse shelves for years. We manufacture these items in fresh production batches. Every lot of our zero-cycle power components undergoes mandatory active capacity grading and rigid aging cycles at our testing facility to break cell passivation completely. We support your distribution scalability through comprehensive multi-model smartphone SKU coverage to optimize your freight, while passing direct factory cost savings of over 10 percent straight to you, fully backed by a 100% pure B2B protection policy—we do not operate consumer retail stores.

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How We Pack: Optimized for Safety & Shipping Efficiency

We provide flexible packaging tiers tailored to your local business model. Whether you want to crush shipping costs or display premium custom branding, we have you covered:

UPS

4-5days

DHL

4-5days

FEDEX

4-5days

EMS

15-25days,Only suggest for samples

UPS WE

no customs duty,shiper do the clearance ,4-5days

Special line by air

no customs duty,shiper do the clearance,12-15days

Special line by train

no customs duty,shiper do the clearance,25-35days

Special line by sea

no customs duty,shiper do the clearance,30-40days

BYAir

12-15days

BYSea

30-40days

Wholesaler Provide Battery Certification

Frequently Asked Questions

We source only raw, brand-new A-grade polymer cells directly from top-tier component giants, skipping standard trading markups to pass 10%+ direct savings to you. Because of our rigorous 6-step testing process (from cell grading to final load testing), our real-world batch return rate is kept strictly below 0.3%.

For our standard hot-selling catalog inventory, we can dispatch within 2-5 working days. For large-scale customized OEM or private label orders, production typically takes more days depending on material specifications. We always communicate real-time timeline tracking so you never experience local stockouts.

We back all bulk orders with an ironclad 12-month replacement warranty. If you encounter any functional defectives within the warranty period, you do not need to ship them back to China (which wastes shipping costs). Simply send us a brief video or photo proof of the testing data via WhatsApp/Email, and we will credit or replace them directly in your next shipment.

Yes, for wholesale buyers looking to scale up, we provide premium OEM services. We can handle custom battery body silk-printing, custom-branded retail boxes with anti-static EVA foam or blister inserts, and warehouse barcode stickers.

Our flexible MOQ is designed to help you keep a healthy cash flow without overstocking. For standard replacement models, our minimum starting order is very low. Please click the "WhatsApp" button or send a quick inquiry with your target quantity, and our team will provide a tailored volume tier quote within 2 hours.

Yes. We supply brand-new replacement batteries with professional inspection before shipment.

Each batch is checked for capacity, voltage, internal resistance and overall performance consistency.

Every batch follows quality inspection procedures, including:

  • Cell quality checking
  • Capacity testing
  • Internal resistance testing
  • Protection board verification
  • Final appearance inspection

This helps maintain stable performance and reduce after-sales issues.

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How we work- 6 Step to Your Door

 

Every battery passes through a rigorous 6-step process — from raw cell to your doorstep — so you receive consistent, reliable product every time.
battery materials souring 2

01

Direct Material Buying

Every lithium cell and protection board is purchased directly from certified manufacturers. All cells undergo mandatory capacity sorting and charge-discharge cycle testing before entering production — eliminating batch variation before assembly begins.
pcb review testing 2

02

Precision Matching & Pre-Assembly QC

No fake capacity, no swollen batteries. Before automated spot-welding, all cells are strictly matched by precise voltage curves. Every single protection circuit board (IC) passes through parametric hardware testers to prevent future degradation or swelling.
factory line 1

03

Factory Assembly

Our self-sourced premium components are deployed to certified, tier-1 contract facilities. Every production run strictly follows our customized engineering SOPs—from laser spot welding and multi-layer insulation to precise flex-cable fitting—under the on-site supervision of our technical team.
testing 2

04

Finished Battery Inspection

100% True testing before boxing. Every batch of finished batteries goes through real capacity and compatibility checks. If a single unit doesn't act like the original, it is rejected right there — it will never touch your shipment.
pack battery 2

05

Heavy-Duty Packaging

Individually insulated for transport. No loose batteries rubbing against each other. Every single piece is safely sealed in custom-fitted blister slots and packed according to strict international dangerous goods regulations to pass global customs smoothly.
shipping countries 2

06

Global Delivery

100% Compliant Dangerous Goods (DG) Shipping with Full MSDS & UN38.3 Certification. Safe, direct-to-door delivery via Express, Air, and Sea freight. Across North America, Europe, South Africa, the Middle East, and Southeast Asia.

Stop Gambling on Bulk Quality.

Send us your model list and get a quote within 12 hours.

Certified for Global Markets

We provide the certifications and shipping documentation required for international battery trade, making global sourcing simpler and more reliable.
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