Capacity: 3880mAh standard
PCB: High-Quality
✔ 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
| Samsung S21 EB-BG991ABY 100% Health Battery Details | |
| Specification Details | |
| Compatible Model: | For Samsung S21 |
| Battery Type: | Premium Lithium-ion (Li-ion) |
| Capacity: | 3880mAh standard |
| Standard Voltage: | 3.88V |
| 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 Galaxy S21 has a very compact chassis. How does your factory ensure the EB-BG991ABY cell fits perfectly without swelling or heating up?
Compact flagships leave zero room for error. When generic aftermarket factories rush production, they often use cheap, unevenly pressed cells that lack adequate thermal insulation, creating a risk for localized shop profits. At Times Electronic, we do not expect our clients to rely on luck. Following our strict engineering standard operating procedures, we source raw materials directly and ensure precise flex-cable fitting alongside multi-layer insulation. Every single battery is compressed to exact original dimensions, operating with upgraded smart protection ICs to keep the compact phone operating with optimal thermal management even during heavy multitasking or rapid charging.
As an electronic spare parts wholesaler, we are tired of traders who secretly run retail storefronts and undercut our pricing. What is your policy?
We strictly maintain our boundaries and protect your long-term business growth. Many market traders in Huaqiangbei pretend to be wholesalers but secretly run retail stores on Amazon or eBay, competing directly against you with your own cost prices. Times Electronic provides a 100% pure B2B protection mechanism as part of our core policy. We do not engage in any retail, now or ever. We function solely as your exclusive back-end supply chain, passing direct cost savings of over 10 percent and 100% instrument-tested reliability directly to your 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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