User's Manual
Table 20. Power adapter specifications (continued)
Description Option one Option two
Operating
0°C to 40°C (32°F to 104°F) 0°C to 40°C (32°F to 104°F)
Storage
-40°C to 70°C (-40°F to 158°F) -40°C to 70°C (-40°F to 158°F)
Battery
Table 21. Battery specifications
Specifications Option 1 Option 2 Option 3
Type Li-ion Polymer, 3-cell
39 WHr
Li-ion Polymer, 4-cell
52 WHr
Li-ion Polymer, 4-cell
52 WHr (LCL)
Voltage (VDC) 11.4 V 7.6 V 7.6 V
Weight (maximum) 0.207 kg (0.46 lb) 0.257 kg (0.56 lb) 0.257 kg (0.56 lb)
Dimensions:
Height 251 mm (9.88 in.) 251 mm (9.88 in.) 251 mm (9.88 in.)
Width 85.8 mm (3.38 in.) 85.8 mm (3.38 in.) 85.8 mm (3.38 in.)
Depth 5 mm (0.19 in.) 5 mm (0.19 in.) 5 mm (0.19 in.)
Temperature range:
Operating
• Charging: 0°C to 45°C (32°F to 113°F)
• Discharging: 0°C to 70°C (32°F to 158°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) 1 Year or 300 discharge/charge cycles 3 Years or 1000
discharge/charge
cycles
ExpressCharge Supported Supported Supported
User replaceable No (FRU) No (FRU) No (FRU)
Coin-cell battery Main battery reserves 2% of capacity for RTC function.
Coin-cell Operating time
68 days with 39 WHr battery
NOTE: Varies depending on operating conditions and can
significantly reduce under certain power-intensive conditions.
NOTE:
Specifications of Latitude 7310 23