Stock Up And Save Big On Each Category!
Stock Up And Save Big On Each Category!
Combine Any 5+ Laptop Batteries or Adapters for 10% Off, 10+ for 20% Off!
Bulb Savings: Buy 5+ Packs (6, 8, 10, or 12) for 10% Off; 10+ Packs for 20% Off!
![Toshiba Satelite U940 E45T E45T-A4100 E45T-A4200 E55 E55T-A5320 E55T-A5114 Series P000577250 PA5157U-1BRS [11.4V / 43Wh] Laptop Battery Replacement](http://drbattery.com/cdn/shop/products/LTS241_1000.jpg?v=1703213404&width=1200)
![Toshiba Satelite U940 E45T E45T-A4100 E45T-A4200 E55 E55T-A5320 E55T-A5114 Series P000577250 PA5157U-1BRS [11.4V / 43Wh] Laptop Battery Replacement](http://drbattery.com/cdn/shop/products/LTS241_1000_2.jpg?v=1703213404&width=1200)
![Toshiba Satelite U940 E45T E45T-A4100 E45T-A4200 E55 E55T-A5320 E55T-A5114 Series P000577250 PA5157U-1BRS [11.4V / 43Wh] Laptop Battery Replacement](http://drbattery.com/cdn/shop/products/LTS241_1000_3.jpg?v=1703213404&width=1200)
![Toshiba Satelite U940 E45T E45T-A4100 E45T-A4200 E55 E55T-A5320 E55T-A5114 Series P000577250 PA5157U-1BRS [11.4V / 43Wh] Laptop Battery Replacement](http://drbattery.com/cdn/shop/products/LTS241_1000.jpg?v=1703213404&width=450)
![Toshiba Satelite U940 E45T E45T-A4100 E45T-A4200 E55 E55T-A5320 E55T-A5114 Series P000577250 PA5157U-1BRS [11.4V / 43Wh] Laptop Battery Replacement](http://drbattery.com/cdn/shop/products/LTS241_1000_2.jpg?v=1703213404&width=450)
![Toshiba Satelite U940 E45T E45T-A4100 E45T-A4200 E55 E55T-A5320 E55T-A5114 Series P000577250 PA5157U-1BRS [11.4V / 43Wh] Laptop Battery Replacement](http://drbattery.com/cdn/shop/products/LTS241_1000_3.jpg?v=1703213404&width=450)
![Toshiba Satelite U940 E45T E45T-A4100 E45T-A4200 E55 E55T-A5320 E55T-A5114 Series P000577250 PA5157U-1BRS [11.4V / 43Wh] Laptop Battery Replacement](http://drbattery.com/cdn/shop/products/LTS241_1000.jpg?v=1703213404&width=4096)
![Toshiba Satelite U940 E45T E45T-A4100 E45T-A4200 E55 E55T-A5320 E55T-A5114 Series P000577250 PA5157U-1BRS [11.4V / 43Wh] Laptop Battery Replacement](http://drbattery.com/cdn/shop/products/LTS241_1000_2.jpg?v=1703213404&width=4096)
![Toshiba Satelite U940 E45T E45T-A4100 E45T-A4200 E55 E55T-A5320 E55T-A5114 Series P000577250 PA5157U-1BRS [11.4V / 43Wh] Laptop Battery Replacement](http://drbattery.com/cdn/shop/products/LTS241_1000_3.jpg?v=1703213404&width=4096)
Toshiba PA5157U-1BRS Battery for Toshiba Satelite U940 E45T E45T-A4100 E45T-A4200 E55 E55T-A5320 E55T-A5114 Series [11.4V] Compatible Battery
Regular price
$50.70 USD
Regular price
$76.70 USD
Sale
Sale price
$50.70 USD
| Minimum Qty | Discount |
|---|---|
| Buy 5 + | Price with 10% off: $45.63 |
| Buy 10 + | Price with 20% off: $40.56 |
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Use the Search Box to find your compatible device Model or OPN in the "Description".
- Description
- Specification
-
COMPATIBLE LAPTOP MODELS
Toshiba Satellite E45T:
A4100 | A4200 | A4300 | AST2N01 | AST2N02
Toshiba Satellite E55:
A5114 | E55T-A5320 | E55T-AST2N01
Toshiba Satellite M50:
A-10E | A115 | DA-10K
Toshiba Satellite U40T:
A | ASP4261SM | AT01S
Toshiba Satellite U50:
U50D | U50T | U50T-A | U50T-A-100
COMPATIBLE ORIGINAL BATTERY NUMBERS
Toshiba:
PA5157U-1BRS
-
Product Type: Replacement Laptop Battery Condition: New Cell Type: Conventional polymer Capacity: 3800mAh / 43WH Device Voltage: 11.4V
How can I extend laptop battery life through settings?
Use Battery Saver or Power Saver mode to minimize background activity and reduce screen brightness.
Choose energy-efficient power plans instead of “Balanced” or “High Performance”.
Does reducing screen brightness really help my battery last longer?
Yes. The display is one of the largest power drains. Lowering brightness can significantly conserve battery life.
Will closing unused apps and tabs improve battery life?
Yes. Idle apps and browser tabs continue consuming power. Closing them reduces background activity and extends runtime.
Is keeping my laptop cool important for battery longevity?
Absolutely. Heat accelerates battery wear. Use your laptop on hard surfaces, keep vents clean, and consider a cooling pad during heavy use.
What’s the ideal battery charge range for long-term health?
Keep the battery between 20% and 80% whenever possible. Avoid full discharges or keeping it at 100% constantly.
Are regular OS and driver updates important?
Yes. Updates often include power efficiency improvements, helping your system run more smoothly and save battery.
Should I unplug unused peripherals to save power?
Yes. Devices like external drives, USB accessories, and Bluetooth peripherals draw power even when idle. Disconnect them when not needed.
Is shutting down better than sleep for battery conservation?
Yes. Sleep still draws some power. Shutting down completely conserves the most battery during long idle periods.
Can hibernation extend battery life effectively?
Yes. Hibernation saves your session to disk and powers off completely, using no battery while preserving your work.
What quick tips help in a battery pinch?
Turn off Wi-Fi and Bluetooth when not in use, close background apps, use dark mode, and enable power-saving display settings.
Choosing the correct replacement battery or adapter is critical for safety, performance, and compatibility. DrBattery.com carries over 120,000 compatible models and part numbers for major laptop brands. Follow these steps before placing your order:
1. Check Your Device Information
- Look at your device’s owner’s manual or label on the bottom of your laptop. Both should show the brand and exact model number.
- If you are buying an adapter, confirm the model number, input voltage, and current listed on your device label.
2. Verify the Original Battery Part Number
Always shut down your laptop before removing the original battery. On the battery label, you will find a part number. This part number is the most reliable way to ensure compatibility.
3. Recognize Common Part Number Formats
Major manufacturers use standard codes. Here are some examples:
HP / Compaq:
123456-001
123456-001
Sony:
PCGA-BP12, VGP-BP1
PCGA-BP12, VGP-BP1
Dell:
312-1234, 1234P
312-1234, 1234P
IBM / Lenovo:
02K1234, 08K1234
02K1234, 08K1234
Toshiba:
PA1234U-1BRS
PA1234U-1BRS
4. Compare the Physical Details
Check the size, connector type, latch position, and orientation of your original battery. Compare these details with the product photos on our website before ordering.
5. Watch Out for Voltage Differences
Some models have two different voltage options — for example, 11.1V vs. 14.8V. They are NOT interchangeable. Always confirm the voltage printed on your original battery.
- A Li-Ion battery labeled 10.8V is the same as one labeled 11.1V.
- A Li-Ion battery labeled 14.4V is the same as one labeled 14.8V.
Example Battery Labels
