Specification:

Model: PA5157U-1BRS
Battery Type: Li-ion
Voltage: 11.4V
Capacity: 50Wh/4160mAh
Condition:Brand new

Replace Part Number:
PA5157U PA5157U-1BRS P000577250 P31PE6-06-N01

Compatible with Laptop Models: (use "Ctrl+F" to find your model quickly)

for Toshiba Satelite E55 E55-A5114
for Toshiba Satelite E55T Series E55T-A5320 E55T-AST2N01
for Toshiba Satelite E45T Series E45T-A4100 E45T-A4200 E45T-A4300 E45T-AST2N01 E45T-AST2N02
for Toshiba Satellite M40-A Series
for Toshiba Satellite M40T Series M40T-A M40T-AT02S
for Toshiba Satellite M50-A Series M50-A-10E M50-A115
for Toshiba Satellite M50D-A Series
for Toshiba Satellite M50T Series
for Toshiba Satellite U40T Series U40T-A U40T-ASP4261SM U40T-AT01S
for Toshiba Satellite U50T Series 50T-A U50T-A100 U50T-A-100
for Toshiba Satellite U940 Series Notebook

For the new battery , we suggest that all of our customer should full charge it by AC power adapter ,because takes a long period, the capacity was strain out by inner PCB circuit, in order to protect your battery life,you can full charge to 100% and drain to 1% 2 times,then the capacity will recover.