New Laptop Battery for Lenovo ThinkPad E430 E431 E435 E530 E531 Y480 G480 E49 11.1V 4400mAh 48Wh 6-Cell 1-Year Warranty

Why You Need This Battery

Your Lenovo ThinkPad Edge E430, E530, IdeaPad Y480, or G480 is a reliable workhorse for daily productivity. But even the best batteries degrade over time. After years of use, you've likely noticed shorter runtime, the laptop shutting down unexpectedly when the battery meter still reads 2030%, or the system refusing to hold a charge. Replacing it with a cheap, lowquality battery often leads to false capacity readings, swelling, or failure within months.

This 6-cell replacement battery solves that problem delivering true 4400mAh / 48Wh capacity with brand new Grade A Li-ion cells. What you see is what you get.

Important Compatibility Check

This battery is a direct fit for the following models. Use Ctrl+F to search for your specific model:

Series Compatible Models
ThinkPad Edge E430, E430c, E431, E435, E440, E445, E530, E530c, E531, E535, E545
ThinkPad T430, T430i, T530, T530i, W530, L430, L530
IdeaPad Y480, Y480n, Y480p, Y485, Y485n, Y485p, Y580, Y580n, Y580p, Y585
IdeaPad G480, G485, G580, G585
Lenovo B Series B480, B485, B490, B495, B580, B585, B590, B595
Lenovo V Series V380, V385, V480, V485, V490, V580, V585
Lenovo M Series M480, M490, M495, M580, M595
Lenovo E Series E49, E49a, E49g, E49l, K49
Replaces OEM part numbers (partial list):

Common P/N
45N1042, 45N1043, 45N1044, 45N1045, 45N1048, 45N1049, 45N1054, 45N1055
121500047, 121500050
0A36311
L11S6Y01, L11L6Y01, L11S6F01

Specifications

You Can Trust

Specification Detail
Model 75 / 75+ 6-cell compatible
Chemistry Li-ion
Cells 6Cell
Voltage 11.1V ( 10.8V compatible)
Capacity 4400mAh / 48Wh
Cycle Life 400500 charge cycles
Color Black
Smart Features SMBus controller for Lenovo Power Manager diagnostics
Safety Standards CE, FCC, RoHS
Condition Brand new Grade A cells
Warranty 30day return + 1year warranty
What a Cheap or Failing Battery Costs You

Short runtime Your laptop dies after 12 hours of light use.

Performance throttling CPU slows down to prevent random shutdowns.

Swelling Dangerous bulging that can crack the palm rest or bottom case.

System errors Battery not recognized warnings and inaccurate battery percentage readings.

What Our Battery Delivers

Feature Cheap Generic Our Premium Battery
True Capacity Often under 4000mAh (fake label) 4400mAh (tested)
Cells Recycled or lowgrade Brand new Grade A
Runtime (light use) 23 hours 45+ hours
Swelling Risk High within months Low, proper BMS
Safety Standards None CE, FCC, RoHS
Warranty None or 30 days 30day return + 1year
Who Is This Battery For?

Lenovo ThinkPad Edge E430/E530/E431/E531 owners who want to restore battery life.

IdeaPad Y480, Y580, G480, and G580 users looking for a reliable replacement.

B480, B490, B580, B590, M490, V480, and E49 series laptop owners.

Anyone whose original battery is swollen or no longer holds a charge.

Users who want a costeffective alternative to OEM replacement.

Why Choose Our Battery?

Genuine Grade A Li-ion cells Fresh factory cells, not recycled or refurbished.

Exact OEM specifications Matches Lenovo's original 11.1V / 4400mAh design for the 75/75+ 6-cell battery.

Smart battery controller SMBus support for accurate wear reporting in Lenovo Power Manager.

Advanced safety protection Overcharge, overdischarge, overcurrent, shortcircuit, and overtemperature protection built in.

100% tested Each unit is tested for capacity and cycle life before shipping.

1year warranty Buy with confidence. If anything goes wrong, we've got you covered.

Installation Note

This is an external removable 6-cell battery no tools required for installation. Simply slide the battery release latch, remove the old battery, and insert the new one. Fully charge before first use for optimal performance. The exact-fit housing ensures the same latch, LED gauge, and charge contacts as the original OEM pack.

What's Included

1 x 6-cell Replacement Battery (4400mAh / 11.1V )