Product Data Sheet / Brochure

Table 17. Battery specifications (continued)
Specifications Option 1 Option 2
see, https://www.dell.com/support/home/
product-support/product/power-manager/docs
Life span (approximate)
● Standard: 1 Year or 300 discharge/charge cycles
● Long Life Cycle (LCL) capable: 3 Years or 1000
discharge/charge cycles (Optional)
ExpressCharge Supported on Express
Charge Capable Battery
Supported on Express
Charge Capable Battery
User replaceable No (FRU
¶
) No (FRU)
Coin-cell battery Main battery reserves 2% of capacity for RTC
function.
Coin-cell Operating time
68 days with 3-cell 42 WHr battery
NOTE: Varies depending on operating conditions
and can significantly reduce under certain power-
intensive conditions.
NOTE:
For batteries with the ExpressCharge feature, the battery will typically have at least an 80% charge after about an hour of
charging with the system off, and fully charged in about 2 hours with the system off.
Enabling ExpressCharge requires that both the computer and the battery used be ExpressCharge capable. If these
requirements are not met, ExpressCharge will not be enabled.
¶
: Field Replaceable Part
Display
Table 18. Display specifications
Description Values
Type
14 in. Full High
Definition (FHD)
14 in. Full High
Definition (FHD)
14 in. Full High
Definition (FHD)
14 in. Full High
Definition (FHD)
14 in. Ultra High
Definition
(UHD)
14 in. Full High
Definition (FHD)
for 2-in-1
Panel
technology
WVA WVA WVA WVA WVA WVA
Luminance
(typical)
250 nits 400 nits 300 nits 300 nits 400 nits 300 nits
Dimensions
(Active Area):
Height
173.95 mm
(6.85 in.)
173.95 mm
(6.85 in.)
173.95 mm
(6.85 in.)
173.95 mm
(6.85 in.)
173.95 mm
(6.85 in.)
173.95 mm
(6.85 in.)
Width
309.40 mm
(12.18 in.)
309.40 mm
(12.18 in.)
309.40 mm
(12.18 in.)
309.40 mm
(12.18 in.)
309.40 mm
(12.18 in.)
309.40 mm
(12.18 in.)
Diagonal
355.60 mm (14
in.)
355.60 mm (14
in.)
355.60 mm (14
in.)
355.60 mm (14
in.)
355.60 mm
(14.00 in.)
355.60 mm
(14.00 in.)
Native
Resolution
1920 x 1080 1920 x 1080 1920 x 1080 1920 x 1080 3840 x 2160 1920 x 1080
22 Specifications of Latitude 7420