Dell Latitude 7400 2-in-1 Setup and specifications guide

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Battery

Table 1. Battery SpecificationsBattery Specifications
Feature	Specifications
Type	52 WHr lithium-polymer 4 cell battery 78 WHr lithium-polymer 6 cell battery
Dimension	52 WHr Length: 250 mm (9.84 inch) Width: 85.80 mm (3.38 inch) Height: 4.99 mm (0.20 inch) Weight: 236.00 g (0.52 lb) 78 WHr Length: 301.67 mm (11.88 inch) Width: 111.36 mm (4.38 inch) Height: 9.09 mm (0.36 inch) Weight: 340 g (0.75 lb)
Weight (maximum)	52 WHr - 236 g (0.52 lb) 78 WHr - 340 g (0.75 lb)
Voltage	52 WHr - 7.6 V 78 WHr - 11.4 V
Life span	52 WHr - 300 discharge/recharge cycles
Charging time when the computer is off (approximate)	0~15°C: 4 Hours 16~45°C: 2 Hours 46~60°C: 3 Hours
Operating time	52 WHr - >= 14 Hours 78 WHr - >= 24 Hours NOTE:Operating time varies depending on operating conditions and can significantly reduce under certain power-intensive conditions,
Temperature range: Operating	Charge: 0°C to 45°C (32°F to 113°F) Discharge: 0°C to 70°C (32°F to 158°F)
Temperature range: Storage	-20°C to 65°C (-4°F to 149°F )
Coin-cell battery	ML1220
Dell Power Manager Capable	Yes, DPM 3.0