Nominal voltage

Nominal voltage(Like this, it does and the ょ arm is thickly) With,Electric batteryBetween the terminal which is obtained when you use in usual stateVoltageIt is the value which is decided as standard. It is new, (or fullChargeIt is close) in the electric battery, you can obtain the terminal voltage which is higher than nominal voltage, butDischargeIt advances when and, in load bigElectric currentWhen it supplies, it becomes the terminal voltage which is lower than nominal voltage.

Something related to terminal voltage between nominal voltage

Electric batteryElectromotive forceThe terminal voltage in the state of no loadVoltmeterIt is almost equal to the value which was measured of making use. When electromotive force decreases more largely than nominal voltage, that electric battery is thought the thing which completes discharge.Primary batterySo thatLifeWith it stops finishing (using),AccumulatorSoChargeAgain you can use by doing.

But, electromotive force being close to nominal voltage, with discharge inside the electric batteryResistanceWhen has increased, connects load there are times when terminal voltage decreases more largely than nominal voltage. About use of heavy-current as for this tendency being remarkable, there is many a thing which use of the electric battery becomes impossible with the decrease of voltage.

As for the voltmeter which is marketed as the battery checker, connecting the appropriate load which is agreeable to the capacity of the electric batteryElectric currentWhile letting flow, it measures terminal voltage. If the value has been less than more largely than nominal voltage, as the electric battery whose exchange is necessary it can decide.

Summary of nominal voltage

If in each case, there is no especially explanatory noteCellIt is the nominal voltage per 1.

Primary battery

Accumulator