Description

Specifications

14.8V 38Wh 4-Cell Battery for Dell Inspiron 14 (3421) 15 (3521) 15R (5521) (P/N: XCMRD MR90Y 6HY59 G019Y 6K73M)
Voltage 14.8V,
Capacity 2600mAh/38Wh,
Number of Cells/type 4,
Colour Black,

Compatible Part Numbers

Dell

XCMRD
MR90Y
6HY59
G019Y
6K73M
0MF69
312-1387
312-1390
49VTP
4WY7C
DJ9W6
T1G4M
V1YJ7
V8VNT
X29KD
XRDW2
YGMTN
FW1MN
451-BBBF

Compatible Devices

Dell

Inspiron 14 (3421)
Inspiron 14R (5421)
Inspiron 15 (3521)
Inspiron 15-3521
Inspiron 3521
Inspiron 15 (3531)
Inspiron 15-3531
Inspiron 3531
Inspiron 15 (3542)
Inspiron 15-3542
Inspiron 3542
Inspiron 15 (3543)
Inspiron 15-3543
Inspiron 3543
Inspiron 15R (5521)
Inspiron 15R (5537)
Inspiron 17 (3721)
Inspiron 17R (5721)
Inspiron 17R-5721
Inspiron 17-5000 series
Inspiron 5748
Inspiron 17 (5748)
Inspiron 5721
Latitude 3440
Latitude 3540
Latitude E3440
Vostro 2421
Vostro 2521
Inspiron 15 (3537)
Inspiron 15-3537
Inspiron 3537
Inspiron 3442
Inspiron 3737
Inspiron 3421
Inspiron 5421
Inspiron 3721
Inspiron 5521

Tips to Extend Your Battery’s Lifespan

1. Keep it cool – heat is the biggest cause of battery wear, so avoid leaving your Dell laptop in direct sun, a hot car, or on soft surfaces that block the vents.
2. Avoid charging to 100% every time – Dell Power Manager’s battery-extender/primarily-AC-use setting can cap charging around 50-80%, which can meaningfully extend your battery’s usable lifespan.
3. Don’t let it run flat – regularly draining the battery to 0% wears it out much faster than topping up before it gets critically low.
4. Store at around 50% charge – if you won’t be using the laptop for a few weeks or more, store it half-charged in a cool, dry place rather than fully charged or fully empty.
5. Go easy on fast charging – rapid chargers generate extra heat, so standard charging (especially overnight or while idle) is gentler on the battery over time.