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Toshiba recommends Windows® 7.
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VISUAL INSPECTION
imageUse of the downloadable BatteryCheck utility software is the preferred and recommended method to perform battery pack identification.

Note that visual identification may produce an inaccurate result. It is possible that visual identification may indicate that the battery pack should be replaced, but the result of the BatteryCheck utility software indicates that the battery pack does not need to be replaced. If the results of these two identification methods do not match, the utility software result (not the visual result) is the accurate result.

Regardless of the above, if you do not want to download and use the BatteryCheck utility software, please follow the instructions below for each battery to determine if you have one of the suspect batteries.

Step 1 Please turn off and unplug your Notebook PC before removing the battery for visual inspection.
Step 2 Remove the battery from the notebook PC.
Step 3 Following the instructions below, identify the suspect batteries by looking at the battery label.
Step 4

Battery model number(PA-number)

step 4 image

Check 'Model NO.' of battery.
If the number matches in the table below, go to step 5 ( or step 8 ). If the number does not match, you do not have a suspect battery.

PA3399U-1BRS PA3400U-1BRS PA3421U-1BRS
PA3395U-1BAS PA3395U-1BRS PA3383U-1BRS
PA3369U-1BRS
( go to step 5 )
   
Step 5
(except PA3369U-1BRS)
Check to see 10 alphanumeric characters.

step 5 image

Step 6
If this set of 10 alphanumeric characters matches with one in the table below, your battery pack is a suspect battery and qualifies for the exchange program.

Model NO. (10 alphanumeric characters)
PA3399U-1BRS SEW0514ASY
SEW0515ASY
PA3400U-1BRS SEW0514ASY
SEW0515ASY
PA3421U-1BRS SEW0514ASY
SEW0515ASY
PA3395U-1BAS SEW0512ASY
SEW0513ASY
SEW0514ASY
PA3395U-1BRS SEW0512ASY
SEW0513ASY
SEW0514ASY
SEW0515ASY
PA3383U-1BRS SEW0514ASY
SEW0515ASY
Step 7
If the characters detailed in steps 5 and 6 above match your battery, please write down the 'Model NO.' as "Battery No", and the 10 alphanumeric characters as "Battery Serial No", otherwise go to step 11.
Step 8
(About PA3369U-1BRS)
Check to see if the 11 alphanumeric characters

step 8 image
Step 9
If this set of 11 alphanumeric characters matches with one in the table below, your battery pack is a suspect battery and qualifies for the exchange program.

Model NO. (11 alphanumeric characters)
PA3369U-1BRS 5407xxxxBAF
5408xxxxBAF
5409xxxxBAF
5410xxxxBAF
5411xxxxBAF
5412xxxxBAF
5413xxxxBAF
Step 10
If the characters detailed in steps 8 and 9 above match your battery, please write down the 'Model NO.' as "Battery No", and the 11 alphanumeric characters as "Battery Serial No", otherwise go to step 11.
Step 11
Your battery is not affected by this battery exchange program.