We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Rectangular black lithium-polymer laptop battery with connector plug

NShi

NShi AA-PBRN4ZU laptop battery 15.4V 66.9Wh 4350mAh

SKU CH-QH0E-TBJDZ MPN AA-PBRN4ZU

Lithium-polymer replacement battery for Samsung Galaxy Book Flex 15 series, 15.4V 66.9Wh 4350mAh, plug-and-play

  • Battery TypeLithium Polymer
  • Plug-and-play Li-ion design enables quick replacement
  • 4V 66.9Wh capacity delivers extended runtime
  • 4350mAh lithium-polymer cell supports long sessions
  • Compatible with Samsung Galaxy Book Flex 15 NP950 950QCJ 930QCJ 950XCJ 930XCJ series
  • Verify original battery part number AA-PBRN4ZU before ordering

Direct replacement battery

The NShi AA-PBRN4ZU is a lithium polymer battery built to replace the original unit in Samsung Galaxy Book Flex 15 series notebooks including the NP950, 950QCJ, 930QCJ, 950XCJ and 930XCJ models. It delivers 15.4V and 66.9Wh capacity through a plug-and-play interface that matches the factory connector. Buyers who need a higher-capacity pack or a different voltage should verify their original part number before ordering.

Cool and silent operation

As an internal battery it produces no audible noise and adds no active heat to the system during normal use. The 4350mAh cell runs at the same 15.4V as the stock battery so power draw from the laptop remains unchanged. No external adapter or cooling consideration is required.

Sustained discharge behaviour

The chemistry supports repeated cycles; the supplier recommends discharging to 5% then charging to 95% for three to four cycles to condition the pack. For storage longer than one month the cell should be kept above 80% charge. Continuous connection to the AC adapter while the battery is installed may reduce long-term capacity.

Highlights

  • Plug-and-play Li-ion design enables quick replacement
  • 4V 66.9Wh capacity delivers extended runtime
  • 4350mAh lithium-polymer cell supports long sessions
  • Compatible with Samsung Galaxy Book Flex 15 NP950 950QCJ 930QCJ 950XCJ 930XCJ series
  • Verify original battery part number AA-PBRN4ZU before ordering

Specifications

Battery TypeLithium Polymer

Questions about this item

How do I install the AA-PBRN4ZU battery in my Galaxy Book Flex 15, and what step do people often miss?

Remove the back case, disconnect the old battery connector, fit the new AA-PBRN4ZU unit, and reconnect. The step most people miss is cycling the new battery: discharge to 5 %, charge to 95 %, and repeat three to four times before regular use.

What maintenance will the AA-PBRN4ZU battery need later on?

If the laptop is stored without the battery, recharge it above 80 % at least once per month. Avoid leaving the AC adapter connected continuously while using the battery, and never let the pack drop to 0 % during the initial conditioning cycles.

What limit appears first when the AA-PBRN4ZU runs under sustained load?

The 66.9 Wh capacity defines the runtime ceiling; once the charge falls toward 5 % the voltage drops and the notebook will throttle or shut down to protect the lithium-polymer cells.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.