Product Details

Specifications

laptop battery for hp 6520 4400mAh--11.1V,
Grade A 6cellsCE UL and One year warranty
long working time @ 500 cycles
Stable

laptop battery for HP 6520

HP/Compaq laptop battery can REPLACE:

COMPAQ: 436281-241 452057-001

HSTNN-DB42
436281-141
441243-141
441462-251
446507-001
HP: 446506-001
HP COMPAQ: 411462-421
417066-001
EV088AA
EX941AA
HSTNN-LB31
411463-251
EV089AA
EX940AA
HSTNN-DB32 411462-141
411462-261
411462-321
411462-442
411463-141
411463-161
411464-141
417066-001
417067-001
432306-001
432307-001
436281-251
436281-361
436281-422
440772-001
441425-001
441611-001
446507-001
451864-001
452056-001
454931-001
455804-001
455806-001
460143-001
EX941AA
HSTNN-C17C
HSTNN-DB31
HSTNN-IB31
HSTNN-IB32
HSTNN-IB42
HSTNN-LB311
HSTNN-LB42
HSTNN-OB31
HSTNN-OB42
HSTNN-Q21C
HSTNN-Q33C
HSTNN-W20C
HSTNN-W34C
NBP6A48A1

FIT Machine models :

compatiable with HP Compaq 6520
                             HP Compaq 6520S
                             HP Compaq 6820
                              HP Compaq 6820S HP 540

Quality Information:

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.