Dell Precision 7540 Setup and specifications guide

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Battery

Table 1. BatteryBattery
FeaturesSpecifications

Type

  • 64 WHr Lithium ion Polymer 4 cell battery with ExpressCharge
  • 97 WHr Lithium ion Polymer 6 cell battery with ExpressCharge
  • 97 WHr Lithium ion Polymer 6 cell battery with three year warranty

Dimension

  1. 64 WHr "smart" lithium-ion
    • Length - 222.40 mm (8.76 in)
    • Width - 73.80 mm (2.90 in)
    • Height - 11.15 mm (0.44 in)
    • Weight - 298.00 g
  2. 97 WHr "smart" lithium-ion
    • Length - 332.00 mm (13.07 in)
    • Width - 73.80 mm (2.90 in)
    • Height - 11.15 mm (0.439 in)
    • Weight - 445.00 g

Weight (maximum)

  • 64 WHr - 2.98 kg (0.66 lb)
  • 97 WHr - 4.45 kg (0.98 lb)

Voltage

  • 64 WHr - 7.8 VDC
  • 97 WHr - 11.4 VDC

Life span

300 discharge/recharge cycles

Charging time when the computer is off (approximate)

4 hours

Operating time

Varies depending on operating conditions and can significantly reduce under certain power-intensive conditions

Temperature range: Operating

0°C to 35°C (32°F to 95°F)

Temperature range: Storage

-40°C to 65°C (-40°F to 149°F)

Coin-cell battery

ML1220

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