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Rectangular black laptop battery with label showing model and voltage

PowerWarehouse

PowerWarehouse PA5157U-1BRS 3-cell 11.4V 4160mAh laptop battery

SKU CH-28HH-6HA6M

3-cell 11.4 V 4160 mAh lithium-ion replacement battery for Toshiba Satellite E45T, E55, E55T and U940 series laptops

  • Battery type3 Cell Lithium-Ion
  • Compatible with Toshiba Satellite E45T, E55, E55T, U940 series
  • Replaces OEM part PA5157U-1BRS and P000577250
  • 4 V output matches original specification
  • 4160 mAh capacity for extended runtime
  • 3-cell lithium-ion design fits internal bay

Direct Replacement Battery

This 3-cell lithium-ion pack is built for Toshiba Satellite E45T, E55, E55T and U940 series notebooks. It matches the original PA5157U-1BRS and P000577250 part numbers so the system recognises it immediately. Owners of those models can swap the old cell without adapters or firmware updates.

11.4V 4160mAh Internal Pack

The slim 3-cell brick slides into the factory battery bay and locks with the existing latch mechanism. No external cables or docking stations are required, so the laptop keeps its original profile and port layout. Daily charging cycles use the same AC adapter the notebook already ships with.

Restores Mobility For Aging Notebooks

When the original pack no longer holds a charge, this unit returns the machine to untethered use for web browsing, document work and video playback. It does not add capacity beyond the factory specification, so users needing significantly longer runtime will need a higher-capacity alternative if one exists for their chassis.

How it compares

Measured against everything we stock in Laptop Chargers & Batteries, at today’s prices. Recalculated every night.

Price $50.99
Pricier than about 82% of the 27,790 comparable items (median $30.99).

Specifications

Power
Battery type3 Cell Lithium-Ion

Questions about this item

What voltage does the 11.4 V battery deliver to the laptop?

The pack supplies 11.4 V to the motherboard, matching the original specification for the listed Satellite models.

Which screw-hole pattern fits the E55 and U940 chassis?

The battery uses the OEM mounting layout for Toshiba Satellite E45T, E55, E55T and U940 series, so existing screws align without modification.

How do I install the PA5157U-1BRS without triggering a battery-not-detected error?

Power off the notebook, disconnect the AC adapter, remove the old pack, insert the new one until the latch clicks, then reconnect AC power before turning the system on.

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