45Wh Samsung AA-PBUN3QB Battery

Name: 45Wh Samsung AA-PBUN3QB Battery
SKU: Battery-US-Samsung-AA-PBUN3QB-45Wh
Availability: InStock

$60.00

Free Shipping | Installation tools included

Reliable battery for work, study, or travel.

Built-in protection: overcharge, over-discharge, short circuit, overcurrent & temperature safety.

Important Shipping Notice (Chinese New Year 2026 - Batteries)
During the Chinese New Year 2026 holiday period, laptop battery orders may take longer than usual to deliver. This delay is mainly caused by battery sourcing (most laptop batteries are manufactured in China) and holiday logistics congestion.

Estimated Battery Delivery Time
Please allow up to 30 days for delivery during this period.

If You Need a Battery ASAP
We completely understand that a working laptop is time-sensitive. If you need a battery urgently, please order with caution. For the fastest solution, you may prefer a local seller or another supplier that is not impacted during the holiday season. While we are sorry we may not be the quickest option for urgent cases, we will be genuinely happy if you can get your problem solved sooner.

If You are Not in a Hurry
If you can wait, you can place your order with confidence. It is very common to keep using a laptop with reduced battery runtime by plugging it in when needed. We will ship as soon as sourcing and logistics allow, keep your order moving, and deliver a high-quality, reliable battery that fits your device properly.

Thank you for your understanding and support.

SKU: Battery-US-Samsung-AA-PBUN3QB-45Wh Category: Battery for Samsung Tag: Samsung AA-PBUN3QB Battery

Description
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Description

Product Information

Item Condition: Brand New
Color: white
Capacity: 3950mAh/45Wh
Output Voltage (Volts): 11.4 Volts
Number of Cells: 3 Cells
Package Included: 1 x Battery for Samsung
Warranty: 12 Months / 30-Day Return

Compatible Part Numbers (not all):
Samsung AA-PBUN3QB AA-PBUN3AB 1588-3366

Compatible Model Series (partial list):
Samsung 300E4M,Samsung 300E5K,Samsung 500R5M,Samsung 550R5L,Samsung 7 Spin NP740U3L,Samsung 7 Spin NP740U5L,Samsung 740u3l,Samsung 740u5l,Samsung 8000GM,Samsung 800G5M,Samsung 810G5M,Samsung 8500GM,Samsung NP350XAA,Samsung NP530E5M,Samsung NP730QAA,Samsung NP740U,Samsung NP740U3L,Samsung NP740U3M,Samsung NP740U5L,Samsung NP740U5M,Samsung NP800G5M,Samsung NP8500GM,Samsung NT500R5L,Samsung NT760XBE,Samsung NT760XBV,Samsung Odyssey NP800G5M

Versatile 45Wh Battery for Samsung 7 Spin & Odyssey

Ensure your device remains powered for productivity and play with our AA-PBUN3QB replacement battery. This 11.4V lithium-polymer battery is precision-engineered to meet the technical standards of the Samsung Notebook 7 Spin and the Odyssey gaming series, providing a reliable 45Wh capacity in a lightweight 3-cell configuration.

Technical Specifications

Part Number	AA-PBUN3QB / AA-PBUN3AB
Voltage	11.4 Volts
Capacity	3950 mAh / 45 Wh
Cell Configuration	3-Cell Lithium-ion Polymer
Condition	Brand New
Warranty	12 Months / 30-Day Return

Compatibility Guide

This high-performance battery supports multiple Samsung series. Please verify your laptop model and original battery code before purchase.

Compatible Part Numbers:

AA-PBUN3QB | AA-PBUN3AB | 1588-3366 | BA43-00358A

Fits Laptop Model Series (Partial List):

Notebook 7 Spin NP740U3L / NP740U5L
Notebook 7 Spin NP740U3M / NP740U5M
Odyssey NP800G5M / NP800G5W
Notebook 3 300E4M / 300E5K
Notebook 5 500R5M / 550R5L
NP350XAA / NP530E5M / NP730QAA

Installation & Care Tips

Internal Battery Setup: This is an internal battery replacement. It requires opening the laptop chassis. For Notebook 7 Spin (2-in-1) models, ensure the internal screen cables are not disturbed during installation.
Proper Connection: The multi-pin connector must be inserted straight and fully into the motherboard socket. A slanted or loose connection may lead to power detection issues.
Initial Charging: For optimal cell health, charge the battery to 100% and then allow it to discharge to 10% for the first 2-3 charge cycles to calibrate the system fuel gauge.

Frequently Asked Questions

Q: Is this battery compatible with both the 13-inch and 15-inch 7 Spin?

A: Yes. Samsung designed the AA-PBUN3QB to be the universal power unit for several screen sizes within the Notebook 7 Spin (NP740U) and Notebook 5 series.

Q: Why does my Odyssey laptop still feel hot after battery replacement?

A: For gaming models like the Odyssey NP800G5M, heat is typically generated by the GPU/CPU. A new battery provides stable power but does not affect the cooling system. Ensure your fans are clean for the best thermal performance.

Package Included: 1 x Brand New Battery for Samsung (AA-PBUN3QB)