No. 7 two 900 mAh nickel metal hydride battery, how long does it take to flush the standard punch!

It depends on what kind of charger!! If you have a fast charger, it will be enough for about 5 hours, oh!! But this one doesn't have an automatic stop charging function!!

If you have a standard charger, it will take about 8 hours!! And if you have a charger that stops automatically when fully charged, that's fine!! You just leave it to charge for more than 10 hours, and it's fine, and it won't be broken!!

As for the battery charging before it is fully discharged, does it have any effect on the battery? Why?

Influential. Because it's a nickel-metal hydride battery!! There is a memory effect, which means that when the battery is not discharged, after a long time, the battery will think that this capacity has been discharged, which will lead to a decrease in the capacity of the battery!! It's the same thing if the battery is not full!!

This is not a lithium battery, lithium batteries do not have this phenomenon, but it is still necessary to make the best use of it, after all, the number of charging and discharging of the battery is limited!!

Take a look at your charger!!

For example: Charging time = battery capacity 900mA h divided by charger output current 150mA + 1 to 2 hours.

The result is equal to 6+1=7 hours or 6+2=8 hours.

The reason is that the battery is lost during charging, so the loss time is added by 1 to 2 hours.

Related to the charger, please read the charger instructions carefully ......

The service life of NiMH batteries can be charged 500-1000 times according to the official claim, but in fact this is only an ideal value.

Based on the ideal value, the battery will not have a shelf life of more than 4 years.

A rechargeable battery is a rechargeable battery that can be charged a limited number of times and is used in conjunction with a charger. No. 5 and No. 7 are generally sold in the market, but there are also No. 1s.

The benefits of rechargeable batteries are economical, environmentally friendly, sufficient power, suitable for high-power, long-term use of electrical appliances (such as walkmans, electric toys, etc.).

The voltage of the rechargeable battery is lower than that of the disposable battery of the same model, the AA battery (5 gauge charge) is volt, and the 9V rechargeable battery is actually volt. Now the general charging times can be about 1000 times.

If the nickel-metal hydride battery is often used, that is, the normal charge and discharge cycle, then the nominal number of cycles shall prevail, for example, it can be cycled 500 times or 1000 times.

If the battery is not used for a long time, it is likely that the battery will be over-discharged due to natural loss of current, and over-discharge will seriously damage the performance of the battery. The most serious situation is that it cannot be charged and cannot be used, and even if it can be charged, there will be problems such as smaller capacity and increased internal resistance, resulting in very small discharge current.

The only exception is Sanyo's Eloop series of low-self-discharge nickel-metal hydride batteries, which have been able to prove that the battery is still half charged for five years, which is very suitable for long-term storage. (Sanyo has been acquired by Panasonic and is now Panasonic's Elop Battery).

But it's almost impossible to buy Alepu batteries in supermarkets.

Therefore, all things considered, please do not buy rechargeable batteries that were produced 4 years ago in the supermarket.

1. The charging of 300mA should be charged for 6 hours (1800mAh except 300mAh);

2. The charging of 300mA should be charged for about 13 hours (3800mAh except 300mAh);

The open-circuit voltage, charged, voltage or so. The single open-circuit voltage of the rechargeable battery is within the upper limit of the charged.

Supplement, it must not be charged, the battery heating is normal, charging is to activate the positive and negative chemical reactions in the battery, it is normal to heat, but if the temperature is hot, it proves that the battery is not very good, be careful, this ** situation is relatively good.

Charging time (hours) = rechargeable battery capacity (mAh) Charging current (mAh) * Charging current is not greater than rechargeable battery capacity.

Most rechargeable batteries use a constant current and then constant voltage 2-stage charging mode, including nickel-metal hydride batteries, when entering the constant voltage stage, the current is relatively reduced, that is, we call the floating charge mode, at this time the full charge time will be increased, usually set as the coefficient. Your 2000 mAh battery has a charging time of 2000 500* hours, of course, this approximation is based on the premise that the battery is relatively healthy and the charger performance is acceptable. This formula is also perfectly suitable for lithium batteries.

1. Basic NiMH battery charging time requirements: Considering the charging efficiency, the required charging capacity is multiple of the actual capacity of the battery. For example:

The battery capacity is 1350mAh, if it is charged with a current of 135mA, the charging current is, and the charging time takes 14-16 hours. If you charge with a current of 270mA, the charging current is 7 hours.

2. The charging current of this charger you said is 100ma, the current is smaller than 135ma, the natural charging time is longer, and the charging capacity is set to be multiple of the battery capacity, and the natural charging time is 20 hours.

It depends on what mobile phone you have, and the smart one is a day.