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   % Depth of Discharge
Transmit Duty Cycle %  
Safe Discharge Percentages
* SLA, AGM, and Flooded must not exceed
more than 50% DoD before battery damage.
* LiFePO4/LFP recommended 80%, but can
safely use 100% of capacity without damage.
Radio's Receive Current Amps  
Radio's Transmit Current Amps      
         
Project ID 00001760520536
Average Current Consumed   Usable Battery Amp/Hours
A/H Capacity Needed   Expected Battery Duration in Hours
A/H Capacity + Reserve