# How long does 4400 mAh battery last?

## How long does 4400 mAh battery last?

usually on a fresh t21 battery people get around 2.5-3 hours according to IBM, and people have claimed to get 4 hours with an ibm 4.4MAH battery. One thing to keep in mind is what kind of tasks you are performing while running on the battery.

## What is the difference between 4400mah and 5200mah?

The difference is how long the battery can be expected to last. Getting a higher number than the original should mean that the battery will last longer than your previous one did, assuming both are new. It does not mean the battery is incompatible with your laptop. 2 of 2 found this helpful.

How long will a 4000 mAh battery last?

A 4000mAh battery life can last up to 4,000 hours, depending on the current required by the object being powered (measured in mA). You can calculate the battery life by dividing the capacity of the battery by the current required by the object.

### Is higher mAh better?

mAh means milliamp Hour and is a unit that measures (electric) power over time. It is commonly used to measure the energy capacity of a battery. In general, the more mAh and the longer the battery capacity or battery life. A higher number means that the battery can store more energy, so it has a higher capacity.

### Is 4000mAh battery enough?

For an average user, a battery over 4,000mAh should be enough to last a day. In addition to the battery capacity, you should also look at the charging speed of the device. Introduction of fast charging has made it easier to charge your device and you no longer have to leave it plugged in overnight.

What does 4000mAh mean?

It means milli-Amp-hour – milli being 1/1000 of an amp. It is a measure of “capacity” of the battery, the higher the number, the higher the capacity. These batteries have a rating of 4000 mAh or 4Ah (4000 divided 1000) meaning they will provide 4 amps of power at 1.2 volts for one hour.

#### What does 4400 mAh mean?

The 4400mAh has fewer battery cells than a 7800mAh. The designation mAH is how much energy the battery holds (when new). So the 7800 will power the laptap longer. The orginal Dell battery is the 4400 size.

#### What happens if I use a higher mAh battery?

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.

Is a 4000mAh battery good?

A 4,000mAh battery on a smartphone will ensure the phone should last well over a day depending on how heavily you use it. Here too, it’s important to have fast charging not because not only could you need it in emergencies, but a 4,000mAh battery without fast charging will take ages to charge to full capacity.

## What does 4000 mAh mean?

Which battery is better 4000mAh or 5000mAh?

1. Capacity loss: the faster the charging speed, the greater the capacity loss. According to the preliminary estimate, the capacity loss of the 100W fast charge battery is about 20% more than that of the 30W PD fast charge, that is, the 5000mAh is turned into 4000mAh.