Power - Dell OPTIPLEX 390 Technical Manualbook

DELL™ OPTIPLEX™ 390 TECHNICAL GUIDEBOOK —FINAL
PO WER
NOTE: These form factors utilize a more efficient Active Power Factor Correction (APFC) power supply. Dell recommends only Universal Power
Supplies (UPS) based on Sine Wave output for APFC PSUs, not an approximation of a Sine Wave, Square Wave, or quasi-Square Wave. If you
have questions, please contact the manufacture to confirm the output type.
3.0v CMOS battery (Type and estimated battery life)
Brand Type
JHT CR-2302L/
BE
MITSUBISHI CR2302
Voltage Composition
3V Lithium
3V Lithium
Life
Continuous Discharge Under 15 kΩ Load to 2.0V End-
Voltage.
20℃±2℃.940Hrs. or Longer.910Hrs.or Longer after 12
months.
Continuous Discharge Under 15 kΩ Load to 2.0V End-
Voltage.
20℃±2℃.940Hrs. or Longer.910Hrs.or Longer after 12
months.
0℃±2℃. 850Hrs. or Longer.820Hrs.or Longer after 12
months.
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