User Manual

IMPEDANCE
– 12 –
The approximate depth of discharge, or remaining
capacity, in a Yuasa NP battery can be empirically
determined by referring to Figure 7.
The internal resistance (impedance) of a battery is lowest
when the battery is in a fully charged state. The internal
resistance increases gradually during discharge, Figure 8
shows the internal resistance of an NP6-12 battery
measured through a 1,000 Hz AC bridge.
AVAILABLE CAPACITY, MEASURED BY OPEN CIRCUIT VOLTAGE