Based on Jim Duffy's (KK6MC) Battery and Charging Systems White Paper **
Revised Aug. 10, 2011
Batteries and Charging Systems for QRP - Chocked full of facts and well worth reading.
SSB - 20% CW - 40% AM/FM - 100% RTTY/Digital - 100%
|The entries below are used to calculate the Battery A/H's
needed based on your planned operation.
|The entries below are used to calculate how long|
a Battery will deliver the desired A/H's.
|Duration needed in Hours -||- Battery Amp/Hour Rating|
|Mode Duty Cycle -||- Depth of Discharge (%)|
|Operator Duty Cycle (%) -|
|Radio's Receive Current in Amps -|
whole numbers without a "%" sign
|Radio's Transmit Current in Amps -|
|Average Current Consumed -||- Usable Battery Amp/Hours|
|A/H Capacity Needed -||- Expected Battery duration in Hours ***|
|A/H Capacity + Reserve -|