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 T410 T420 T510 T520 W510 W520 L412 L420 L512 L520 0A36303 0A36302 45N1005 42T4751 42T4791 42T4793 42T4755 [10.8V] Battery Replacement

Lenovo ThinkPad T410 T420 T510 T520 W510 W520 L412 L420 L512 L520 Laptop Battery 0A36303 0A36302 45N1005 42T4751 42T4791 42T4793 42T4755 [10.8V] Compatible Battery

£31.50 GBP inc. VAT

~~£69.00 GBP~~ Sale £31.50 GBP inc. VAT

Minimum Qty	Discount
Buy 5 +	Price with 10% off: £28.35
Buy 10 +	Price with 20% off: £25.20

Discount will be applied at Checkout page

Capacity 4400mAh / 48Wh 6600mAh / 71Wh

Product variants

Product Info

Type Laptop Battery
SKU LLN216-db-002
Capacity 4400mAh / 48Wh or 6600mAh / 71Wh
Cell Type Conventional Li-ion
Warranty 1 Year
Shipping Free Shipping

Description
Specification

COMPATIBLE LAPTOP MODELS

IBM ThinkPad:

SL410 | SL510 | SL410 | SL510 | T510 | W510 | SL410 | SL410 2842 | SL410 2874 | SL510 | SL510 2847 | SL510 2875 | W510 | W510 4318 | W510 4319 | W510 4387 | W510 4389 | W510 4391 | W510 4875 | W510 4876

Lenovo ThinkPad :

Edge 14 | Edge 14 0199 | Edge 14 0578 | Edge 14 0579 | Edge 15 0301 | Edge 15 0302 | Edge 15 0319 | Edge E40 | Edge E50 | L410 | L412 | L420 | L510 | L512 | L520 | T410 | T410 2516 | T410 2518 | T410 2519 | T410 2522 | T410 2537 | T410 2538 | T410 2539 | T410i | T410i 2516 | T410i 2518 | T410i 2519 | T410i 2522 | T410i 2537 | T410i 2538 | T410i 2539 | T420 | T420 4177 | T420 4178 | T420 4179 | T420 4180 | T420 4236 | T420 4237 | T420 4238 | T420i | T510 | T510 4313 | T510 4314 | T510 4339 | T510 4349 | T510 4384 | T510 4484 | T510 4873 | T510 5584 | T510 8787 | T510i | T510i 4313 | T510i 4314 | T510i 4339 | T510i 4349 | T510i 4384 | T510i 4484 | T510i 4873 | T510i 5584 | T510i 8787 | T520 | T520 4239 | T520 4240 | T520 4241 | T520 4242 | T520 4243 | T520 4244 | T520 4246 | W510 Series | W520 4249 | W520 4260 | W520 4270 | W520 4276 | W520 4281 | W520 4282 | W520 4284 | W520 Series

COMPATIBLE ORIGINAL BATTERY NUMBERS

Lenovo:

42T4235 | 42T4702 | 42T4703 | 42T4704 | 42T4706 | 42T4708 | 42T4709 | 42T4710 | 42T4711 | 42T4712 | 42T4713 | 42T4714 | 42T4715 | 42T4731 | 42T4732 | 42T4733 | 42T4734 | 42T4735 | 42T4736 | 42T4737 | 42T4738 | 42T4751 | 42T4752 | 42T4753 | 42T4755 | 42T4756 | 42T4757 | 42T4758 | 42T4763 | 42T4764 | 42T4765 | 42T4766 | 42T4790 | 42T4791 | 42T4793 | 42T4794 | 42T4795 | 42T4796 | 42T4797 | 42T4798 | 42T4799 | 42T4801 | 42T4802 | 42T4803 | 42T4817 | 42T4819 | 42T4848 | 42T4849 | 42T4850 | 42T4851 | 42T4852 | 42T4883 | 42T4885 | 42T4887 | 42T4911 | 42T4912 | 42T4913 | 42T4921 | 42T4923 | 42T4925 | 42T4927 | 51J0498 | 51J0499 | 51J0500 | 57Y4185 | 57Y4186 | 57Y4545

IBM:

0A36302 | 0A36303 | 45N1001 | 45N1005 | 45N1007 | 45N1013 | 45N1015

REMARKS
- This battery is NOT compatible with the ThinkPad T430, T430s, T530, W530 and L530 Series
- Please confirm your laptop model and battery number before placing an order

Product Type:	Replacement Laptop Battery
Condition:	New
Cell Type:	Conventional Li-ion
Capacity:	4400mAh / 48Wh or 6600mAh / 71Wh
Device Voltage:	10.8V

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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