The classification of nickel-metal hydride battery voltage

According to the working stage of nickel-metal hydride battery, its voltage is classified as: full of voltage, rated voltage, lowest voltage, or saturated voltage, working voltage, and cut-off voltage.

The rated voltage of nickel-metal hydride battery is 1.2 V, this is the average voltage while nickel-metal hydride battery is working normally. Usually, qualified nickel metal hydride battery voltage is more stable, if has been using, will show the formed in a relatively stable frequency voltage drop process.

Nickel metal hydride battery cut-off voltage of 0.9 V, some nickel metal hydride rechargeable batteries as available to 0.8 V, the voltage has dropped below 0.8 V, then nickel metal hydride batteries discharge, battery needs to be fixed, if the battery after repair (usually repair using the method of charging 0.2 C for 1 hour) still cannot reach 0.8 V battery failure.

When cut-off voltage is reached, nickel-metal hydride battery needs to be charged. The saturated voltage of ordinary nickel-metal hydride battery is slightly different from others due to the different charging current. When reaching same voltage in lower charging current, current capacity (i.e., power) compensation will be more. Generally, it is about 1.4V when nickel-metal hydride battery is in full voltage. During test, because the current is different, its voltage will be up to 1.5V while it is full charged.

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