

Next cutoff in
Estimated Delivery
Cut-off Time
2:00 PM Daily
Orders placed after cutoff will be processed next business day
Battery Specifications:
Product Type: Battery
Brand: Xiaomi
Compatible Model: Xiaomi Black Shark 4
Battery Capacity: 4500mAh
Battery Model: BS08FA
Condition: Brand‑new, unused, unopened, undamaged item in original packaging
Warranty: 6‑month warranty
Tested: Yes / QC passed before delivery
Service Charge: 200tk (if replaced at our shop)
Policy: Easy return policy
Delivery: Available exclusively in Bangladesh
Warranty & Return Policy:
We offer a 30-day replacement guarantee if you're not satisfied with the battery—no questions asked.
- The Xiaomi Black Shark 4 battery comes with a 1-month warranty from the date of purchase.
- If the battery doesn’t meet your expectations within the first month, you can get a free replacement.
- Note: No warranty will apply if the battery is physically damaged, exposed to water or liquid, subjected to abrasion, electric short circuit, or impact.
- If the battery is out of stock, we reserve the right to adjust the service time or date.
Important Information:
- If you find any issues with the product after receiving it, please contact wefixfast immediately.
- Memorandum required: You must keep the purchase memo as the battery cannot be exchanged without it.
- The battery warranty is void if it swells during the warranty period.
Charging Tips:
Ensure you use the original charger and follow proper charging guidelines for optimal battery health and longevity.
Also available:
- Xiaomi Black Shark 4 Battery Backshell
Thank you for choosing wefixfast!
We want our customers to have a smooth shopping experience. Please read our return and exchange policy carefully.If you face any problem with the product within 7 days of receiving it, we will provide a replacement/exchange. Cash refunds are not available. Products eligible for return will only be exchanged with the same product or an equivalent replacement.
The product must be returned within 7 days of delivery. The product must not be physically damaged, broken, or misused. Original packaging and accessories (if any) should be included. A proper unboxing video may be required for verification of any issue.
The product has been damaged by the customer. The issue is reported after 7 days. The product is returned without necessary proof of purchase
For any exchange request, please contact our support team with your order details and a description of the problem.
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