Battery
Table 17. Battery specifications
Specifications
Option 1
Option 2
Type
4-cell, 63 WHr, optional
with ExpressCharge or
Long Life Cycle
3-cell, 42 WHr, optional
with ExpressCharge or
Long Life Cycle
Voltage (VDC)
15.2 VDC
11.40 VDC
Weight (maximum)
0.264 kg (0.582lb)
0.212 kg (0.467lb)
Dimensions:
Height
92.8 mm (3.654 in.)
92.8 mm (3.654 in.)
Width
238 mm (9.37 in.)
238 mm (9.37 in.)
Depth
5.7 mm (0.224 in.)
5.7 mm (0.224 in.)
Temperature range:
Operating
●
Charging: 0°C to 45°C (32°F to 113°F)
●
Discharging: 0°C to 65°C (32°F to 149°F)
Storage
-20°C to 60°C (-4°F to 140°F)
Battery Operating time
Varies depending on operating conditions and can
significantly reduce under certain power-intensive
conditions.
Battery Charging time (approximate)
●
ExpressCharge Boost (0% up to 35% ) : 20
minutes
●
Express charge : 2 hours
●
Standard charge: 3 hours
NOTE:
Control the charging time, duration,
start and end time, and so on using
the Dell Power Manger application. For
more information on the Dell Power Manger
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:
Specifications of Latitude 7520
19
