About this replacement
Designed for BQ devices. Compatible models include Aquaris 5.7. Replacement part numbers include B21, BT-4000-259. Key specifications: 3.7V, 3400mAh, Li-Polymer.
Free U.S. shipping
Battery Part FinderReliable power for everyday devices
Battery Part FinderCompatible with BQ
BQ Aquaris 5.7 Replacement Battery - Replaces B21
$23.79In stock
3.7V3400mAhLi-Polymer
Fits 1 model · Replaces 2 part numbers
Ships from USA Warehouse · Delivery in 7-12 days
$23.79Quantity 1
Why this battery
- Compatibility checked for listed device models
- Protected, secure checkout with tracked fulfillment
- Battery safety documents available where applicable
Compatibility
Check your original model and part number before ordering.
Compatible brands
Fit Model
Part Number
Specifications
Battery typeLi-Polymer
Voltage3.7V
Capacity3400mAh
Wh12.58Wh
Dimensions109.02 x 70.00 x 4.80mm
Weight
Connector
ChemistryLi-Polymer
Shipping and safety
UN number:
Standard carrier options available
·
UN38.3 documentation pending
Return warning
Customer reviews
Verified purchase reviews will appear here.