How do I find the correct laptop battery for my device?

Check your laptop’s owner’s manual or the label on the bottom of your device for the brand and exact model number. Then verify the part number printed on your original battery to ensure compatibility.

Where is the battery part number located?

Shut down your laptop, remove the battery, and read the label printed directly on the battery. That part number is the most reliable way to confirm compatibility.

Are different battery voltages interchangeable?

No. A battery rated 11.1V is not compatible with one rated 14.8V. Always match the voltage on your original battery. Note: 10.8V equals 11.1V, and 14.4V equals 14.8V.

What should I compare before ordering a replacement battery?

Compare the size, connector type, latch position, and orientation of your original battery with the product photos and specifications on DrBattery.com.

Can I use device model numbers instead of part numbers?

You can, but battery part numbers are more precise. A single device model can support multiple battery types, so confirming with the battery’s printed part number is best.

Lenovo ThinkPad Yoga 11e 45N1748 45N1748 45N1751 45N1750 20E5001B 20D90027US [7.4V] Compatible Laptop Battery

Lenovo ThinkPad Yoga 11e Laptop Battery 45N1748 45N1748 45N1751 45N1750 20E5001B 20D90027US [7.4V] Compatible Battery

$50.70 USD

~~$76.70 USD~~ Sale $50.70 USD

Minimum Qty	Discount
Buy 5 +	Price with 10% off: $45.63
Buy 10 +	Price with 20% off: $40.56

Discount will be applied at Checkout page

Product variants

Product Info

Type Laptop Battery
SKU LLN259-db-002
Cell Type Conventional Li-polymer
Warranty 1 Year
Shipping Free Shipping

Description
Specification

COMPATIBLE LAPTOP MODELS

Lenovo ThinkPad Yoga:

11e 20D9000Q | 11e 20D9000QUS | 11e 20D9000R | 11e 20D9000RUS | 11e 20D9000UUS | 11e 20D9000VUS | 11e 20D9000WUS | 11e 20D9000XUS | 11e 20D90018US | 11e 20D90019 | 11e 20D90019US | 11e 20D9001AUS | 11e 20D9001F | 11e 20D9001FUS | 11e 20D9001GUS | 11e 20D9001JUS | 11e 20D90025US | 11e 20D90026US | 11e 20D90027US | 11e 20D90028 | 11e 20D90028US | 11e 20D90029US | 11e 20D9002A | 11e 20DA001C | 11e 20DA001FUS | 11e 20DA001GUS | 11e 20DA001HUS | 11e 20DA001JUS | 11e 20DA001KUS | 11e 20DA001LUS | 11e 20DA0021US | 11e 20DA0022US | 11e 20DA0023US | 11e 20DA0031US | 11e 20DA0035US | 11e 20DA0036US | 11e 20DA003DUS | 11e 20DA003EUS | 11e 20DB000CUS | 11e 20DB000E | 11e 20DB000GUS | 11e 20DB000JUS | 11e 20DBA003 | 11e 20DU0008US | 11e 20DU000A | 11e 20DU000AUS | 11e 20DU000EUS | 11e 20E50000 | 11e 20E5000C | 11e 20E5000CUS | 11e 20E5000DUS | 11e 20E5000FUS | 11e 20E5000GUS | 11e 20E5000J | 11e 20E5000JUS | 11e 20E50013US | 11e 20E50014 | 11e 20E50014US | 11e 20E50015US | 11e 20E50016US | 11e 20E50017US | 11e 20E50018US | 11e 20E50019US | 11e 20E5001AUS | 11e 20E5001B | 11e 20E70009 | 11e 20E70009US | 11e 20E7000A | 11e 20E7000AUS | 11e 20E7000B | 11e 20E7000BUS | 11e 20E7000C | 11e 20E7000CUS | 11e 20E7000D | 11e 20E7000DUS | 11e 20E7000E | 11e 20E7000EUS | 11e 20E7000F | 11e 20E7000FUS | 11e 20E7000G | 11e 20E7000GUS | 11e 20E7000H | 11e 20E7000HUS | 11e 20E7000J | 11e 20E7000JUS | 11e 20E7001AUS | 11e 20E7001BUS | 11e 20E7001CUS | 11e 20E7001DUS | 11e 20E7001EUS | 11e 20E7001FUS | 11e 20E7001GUS | 11e 20E7001HUS | 11e 2nd Gen

COMPATIBLE ORIGINAL BATTERY NUMBERS

Lenovo:

2ICP6/50/702 | 2ICP6/50/70-2 | 45N1748 | 45N1749 | 45N1750 | 45N1751

REMARKS
- Please confirm your laptop model and battery number before placing an order
Product Type: Replacement Laptop Battery

Condition: New

Cell Type: Conventional Li-polymer

Capacity: 4600mAh / 34Wh

Device Voltage: 7.4V

Product Type:	Replacement Laptop Battery
Condition:	New
Cell Type:	Conventional Li-polymer
Capacity:	4600mAh / 34Wh
Device Voltage:	7.4V

Laptop Battery FAQs How To Find The Correct Battery?

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

Sony:
PCGA-BP12, VGP-BP1

Dell:
312-1234, 1234P

IBM / Lenovo:
02K1234, 08K1234

Toshiba:
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

Example laptop bottom label with model number

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Lenovo ThinkPad Yoga 11e Laptop Battery 45N1748 45N1748 45N1751 45N1750 20E5001B 20D90027US [7.4V] Compatible Battery

Product Info

COMPATIBLE LAPTOP MODELS

COMPATIBLE ORIGINAL BATTERY NUMBERS