replacement battery fit for ASUS A4 A4000L A4000S A4D A4G

A42-A4          70-N9X1B1000        90-N9X1B1000

fit ASUS
A4                     A4000                  A4000D        A4000G       A4000Ga       A4000K          A4000Ka
A4000L            A4000S series        A4D             A4G             A4Ga              A4K              A4Ka              A4L                        A4S

1 Cells: We use A Grade Cell, and 1 year warranty.

2 Battery Case: The battery case use insulation materials with shockproof, prevent aging, and no easy to damage. First-class and durability.

3 Mother Board: Battery motherboard is designed by ourselves. Special design include automatic protection programs, such as over-charge, over-discharge, over-heart and short circuit protection.

4 A series testing:

1) The first test is to inspect all the cells that whether have stable and ample capacity before assembly. The test time costs four hours.

2) The second test is to test the basic performances of the assembled battery before the aging test.

3) The Third test is aging test, to inspect basic parameters and performances. We do aging test for 72 hours.

4) The fourth test is to inspect all the performances of the battery after fixing procedure.

5) The last test is to inspect the battery whether can work well on laptop after finished all assembly procedures.

5 Low self-discharge: The residual capacity of our battery have more than 90% of the initial capacity after 30 days storage.

6 Charge-discharge can come up to more than 300 times, after 300 times, the residual capacity still have 80% of the initial capacity.

7 6 cells battery, the use time is up to more than 3 hours.