# What is the difference between 1.5 v and 1.2 v batteries?

### What is the difference between 1.5 v and 1.2 v batteries?

What's the difference between 1.5 V and 1.2 V? 1.5 V is the nominal voltage for dry batteries, and nickel-metal hydride batteries have a nominal voltage of 1.2 V. Dry batteries have a slightly higher voltage than the actual working voltage required by the appliance.

### Are rechargeable batteries 1.5 v?

A rechargeable battery can be charged up to 1.3v or 1.5v depending on the type. It will then degrade as well down to 1v and lower like a regular battery. However, at that point, you then recharge it back up to the max voltage and reuse it.

### Are all NiMH batteries 1.2 v?

NiMH batteries have replaced NiCd for many roles, notably small rechargeable batteries. ... NiMH batteries nominally operate at 1.2 V per cell, somewhat lower than conventional 1.5 V cells, but can operate many devices designed for that voltage.

### Do rechargeable batteries have same voltage?

Standard size single-use batteries usually have a nominal voltage of 1.5 volts whilst rechargeable batteries are 1.2 volts. ... So throughout the time the batteries are used, single-use batteries' average output is 1.2 volts, similar to that of rechargeable NiMH batteries.

### Will 1.2 V batteries work in 1.5 V?

Secondary batteries use cell from NiMh or NiCd which have 1.2V open circuit voltage. Primary cells (like Carbon Zinc or Manganese-dioxide which is alkaline) use cells that have 1.5V open circuit voltage when fresh. In practice the batteries can be used interchangeably in sets.

### Are all AAA batteries 1.5 V?

What is a 1.5v Battery? A classic nominal voltage, most AA, AAA, C, & D cells are 1.5 volts, and many household and handheld devices have been built to use that voltage.

### When should I replace my 1.5 V battery?

You might wonder at what voltage is a 1.5 V battery dead. If the battery tests at less than 1.3 volts in the multimeter, it no longer functions properly and should be replaced.

### Why are rechargeable batteries not recommended?

There are downsides to using rechargeable batteries and reasons against their use. One of the negatives most often cited by users is that rechargeable batteries often have a lower voltage rating than single use. This can effect a devices output and performance.

### Should you fully discharge NiMH batteries?

NimH life can be enhanced substantially by never discharging them fully on any occasion. Even when using multiple sets during a day's shooting, if you can manage to leave the last 10% or so of capacity in the battery you will get substantially longer life from them.

### How do you charge a 1.2 V NiMH battery?

Overnight Charging The cheapest way to charge a nickel metal hydride battery is to charge at C/10 or below (10% of the rated capacity per hour). So a 100 mAH battery would be charged at 10 mA for 15 hours. This method does not require an end-of-charge sensor and ensures a full charge.

### What makes a secondary battery a rechargeable battery?

rechargeable batteries called secondary batteries use different chemistry than primary cells (one time batteries). The voltage and its behavior is a characteristic of the chemistry. Secondary batteries use cell from NiMh or NiCd which have 1.2V open circuit voltage.

### Why are rechargeable AA batteries made to be 1.2V?

AA is the specification of batteries. Rechargeable AA battery have NiMH AA & NiCd AA battery and Lithium AA (14500) NiMH & NiCd AA battery,The normal voltage is 1.2V, The chemical reaction at the positive electrode is similar to that of the nickel–cadmium cell (NiCd), with both using nickel oxide hydroxide (NiOOH).

### What's the nominal voltage of a rechargeable battery?

Not all rechargeable batteries have a nominal voltage of 1.2V; it is specific to a few chemistries that happen to be popular. According to Wikipedia, the following rechargeable battery chemistries have cell voltages of 1.2V:

### What kind of batteries are best for recharging?

Most AA and AAA rechargeable batteries are made with nickel metal hydride (NiMH), as opposed to the nickel cadmium (NiCd) batteries of yore. NiMH rechargeable batteries hold a charge longer, can be recharged more times over their life spans, and have higher capacities than those made with NiCd.