1. A coulomb counter circuit comprising: a plurality of different inputs, each configured to receive an input signal indicative of current traveling through a resistance to a load; for each input signal, an integrator configured to generate an integrated output representative of an integration of the input signal; and a summer configured to generate a summed output which is representative of the sum of each of the integrated outputs, weighted inversely proportional to the resistance that is associated with the integrated output, each of the weightings being substantially different.