Capacity: 4900mAh 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
| Phone Battery for Xiaomi Redmi 8A BN51 Details | |
| Specification Details | |
| Compatible Model: | For Xiaomi Redmi 8A |
| Battery Type: | Premium Lithium-ion (Li-ion) |
| Capacity: | 4900mAh 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 8A utilizes a massive 5000mAh cell with 18W fast charging capability. How does your factory prevent the BN51 battery from overheating and swelling under rapid power delivery?
Sourcing replacement batteries for large capacity devices running quick charging protocols leaves zero margin for unstable chemical composition or cheap protection components. Severe cell expansion and premature degradation happen because standard trading brokers distribute unverified stocks built with high resistance recycled materials to lower market entry pricing. Times Electronic eliminates this critical engineering risk entirely. We utilize fresh premium density lithium components integrated with upgraded dual-IC smart protection boards. Our BN51 modules maintain an ultra-low internal resistance curve even under sustained 18W power routing keeping the unit completely cool and flat to protect your localized shop profits.
Managing cross border freight for heavy turnover budget lines involves complex asset risks. How does your wholesale supply chain safeguard bulk parts distributors?
We eliminate cross border transit defects and inventory dead weight by maintaining active production lots driven by real time commercial demand rather than liquidating expired legacy warehouse leftovers that have decayed over the years. Every single production batch of our heavy duty phone batteries undergoes mandatory active capacity grading and rigid aging cycles at our testing hub to break cell passivation completely delivering a true 0-cycle power component status out of the box. We optimize your distribution logistics through massive multi model smartphone SKU coverage with highly flexible MOQs routing direct 10 percent plus factory savings straight to you fully backed by a 100 percent pure B2B protection policy where we run zero retail storefronts.
Cell chemistry, format, brand and grade depend on the selected product. LiFePO4 prismatic cells are not polymer pouch cells. For raw-cell orders, confirm the manufacturer, model, capacity, dimensions, terminal format, grading and test data before ordering. For replacement battery packs, confirm the compatible device and required cell/PCB configuration. Our real-world batch return rate is kept strictly below 0.3% through our 6-step testing process.
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.
Our warranty is 12 months from the bill of lading (B/L) dispatch date. No returns to China are required. Send a photo or short video showing the unit SN/QR code and testing anomaly to your account manager. Valid claims are reviewed within 24 business hours. Approved claims may be resolved by replacement in the next shipment or invoice credit; batch defects exceeding 2% qualify for priority replacement dispatch at our cost. Coverage, exclusions and full procedures follow our B2B Support Policy.
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 minimum order quantity is 100 pcs per order. Mixed models are supported. Send your model list and quantities for wholesale pricing; our team will reply within 12 hours. If you need samples for business evaluation before a bulk order, include your company details and expected purchase plan in your inquiry.
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:
This helps maintain stable performance and reduce after-sales issues.
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