Welcome to TsuLin
Before placing your order, we highly suggest you to open the back case of your laptop and check out the exact part number of your laptop's original battery.
1.Battery Type: Rechargeable Li-ion Battery
2.Model: PA5278U-1BRS
3.Voltage: 11.4V
4.Capatity: 48Wh 4080mAh
5.Connector: Please refer to the picture and check it.
6.Certificate: CE,RoHS,FCC, 100% New from Manufacturer, Grade-A Cell.
All TsuLin products are Certified by CE, FCC for safety. Strict guidelines for compatibility, and standards compliance for environment safety.
7.Worry-Free Warranty:
At TsuLin, we believe in our battery. That's why we back them all with a 12-month warranty and provide friendly customer service, easy-to-reach support.
8.Replacement for Part Number:
PA5278U-1BRS PA5278U1BRS.
9.Compatible Models (use "Ctrl+F to find your model quickly")
for for Toshiba Portege X30 X30-D X30-D-10V X30-D-121 X30-D-10M X30-D-13Z X30-D-143 X30-E X30-E-10U X30-E-10G X30-E-12H X30-E-11D X30-E-11U X30-E-BTO series; for Toshiba Tecra X40 X40-D X40-D-10E X40D10E X40-D-10F X40-D-10G X40-D-10J X40-D-10M X40-D-10Q X40-D-10R X40-D-10U X40-D-10T X40-E X40-E-108 X40-E-10H X40-E-11M X40-E-10W series.
11.For Optimal Use battery:
<1>Discharge the new battery to 5% (not 0%), then charge and cycle 3-4 times to get the new battery a full capacity.
<2>The important point is to perform a full discharge charge every other month to extend battery life.
<3>Don't connect adapter for a long time while using the battery. It may damage the battery.
<4>Avoid artificial shocks, disassembly, crush or puncture. Do not dispose of in fire or water.
<5>Avoid using the battery in an environment where the temperature is too high or too low.