Redmi Note 9S & Note 9 Pro (BN55) Li-ion Polymer Replacement Battery
This BN55 rechargeable Li-ion polymer battery is a high-capacity replacement built to restore strong, reliable performance for your Redmi Note 9S and Note 9 Pro. It delivers stable power output and safe charging for everyday use.
Specifications
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Model: BN55
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Type: Lithium-ion Polymer (Li-ion Polymer)
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Capacity: 4920mAh (Minimum) / 5020mAh (Typical)
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Voltage: 3.87VDC
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Compatibility: Xiaomi Redmi Note 9S, Xiaomi Redmi Note 9 Pro