What is the voltage of a fully charged AA NiMH battery?

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What is the voltage of a fully charged AA NiMH battery?

1.5V
The proper voltage for AA/AAA alkaline battery is 1.5V. The proper voltage for AA/AAA NiCd/NiMh rechargeable battery is 1.25 Volts.

Can you fully discharge a NiMH battery?

NiMH life can be significantly extended by never fully discharging them on any occasion. This effectively means that you should never discharge your NiMH cells and should try to avoid doing so.

Does voltage matter for rechargeable batteries?

Standard size single-use batteries usually have a nominal voltage of 1.5 volts whilst rechargeable batteries are 1.2 volts. This means that in the vast majority of devices the voltage should not be an issue when replacing single-use batteries with rechargeable batteries.

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What is the max voltage for NiMH cell?

1.2 V
Nickel–metal hydride battery

Modern NiMH rechargeable cells
Specific energy 60–120 W·h/kg
Self-discharge rate 13.9–70.6\% at room temperature 36.4–97.8\% at 45 °C Low self-discharge: 0.08–2.9\% (per month)
Cycle durability 180–2000 cycles
Nominal cell voltage 1.2 V

How low can you discharge a NiMH battery?

NiMH cells start at about 1.5 V right when fully charged, drop to about 1.2 V most of their discharge life, and are pretty much empty at 900 mV. Stopping there is usually safe. 800 mV is where you definitely want to stop to avoid damage.

Does fast charging damage NiMH batteries?

Up to around 70\% charge the charging efficiency is close to 100\% and the battery remains cool. It is therefore acceptable to fast charge with most NiMH cells.

Do rechargeable batteries have less voltage?

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.

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What voltage is a AA battery?

AA batteries start off with 1.5 volts of energy, but the voltage goes down as the batteries are used up. Once the batteries dip below 1.35 volts, they appear to be dead, even though they still have a lot of juice left.

What voltage should a AA battery be?

Roohparvar claims that the Batteriser can get 1,185 minutes out of a remote (5 times more energy), 570 minutes out of portable speakers (6x) or 355 minutes out of an RC toy (9x). Batteriser can continue to deliver a 1.5 volt charge from batteries that have actually discharged down to 0.6 volts.

How fast should I charge my NiMH battery?

Typically a moderate rate (2 to 3 hour) smart charger is preferred for NiMH batteries. The batteries are protected from overcharge by the smart charger circuitry. Extremely fast charging (less than 1 hour) can impact battery cycle life and should be limited to an as needed basis.

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Is there an upper and lower limit for NiMH AA batteries?

Well the very first hitwhen googling “NiMH AA battery data sheet” gave me this information: – If different batteries are specified at different levels then there is no generic upper and lower limit. What do most electronics want and expect from the AA batteries they run on?

Why won’t my ninimh battery charge?

NiMH batteries are fickle fiends to charge, exhibiting temperature-dependent changes in charge and discharge curves. They also don’t have a float voltage, so constant voltage charging doesn’t work, as you’ve likely discovered. Energizer has some recommendationsregarding charge times:

Does the mAh rating of a battery affect its performance?

A: Yes, the mAh rating will give you longer run times between recharges. The higher rated mAh of a battery has no effect on electronic devices other than they allow longer term use. Q: Why are AA and AAA batteries rated at 1.2 volts and alkaline batteries rated at 1.5 volts?