Home RF Density Calc
Battery Calc
Trans Line Loss Calc
Contact
Battery Life Estimator
(Based on Jim Duffy's (KK6MC) Battery and Charging Systems White Paper
Batteries and Charging Systems for QRP
)
This form is used to calculate how many A/H's the Battery needs to be based on your planned usage.
Duration Required
Hours
Battery Amp/Hour Rating
Select Mode
SSB
CW
AM/FM
Digital
RTTY
% Depth of Discharge
Transmit Duty Cycle
%
Safe Discharge Percentages Note
SLA, AGM, Flooded recommended 50%
LiFePO4, LFP are recommended 80%
Radio's Receive Current
Amps
Radio's Transmit Current
Amps
Project ID
00001733618341
Average Current Consumed
Usable Battery Amp/Hours
A/H Capacity Needed
Expected Battery Duration in Hours
A/H Capacity + Reserve