What is a good battery and which is not?

In today's world, few people do without digital equipment and power tools. The question arises: how to choose the right battery for this or that high-tech device? What good battery will last really long? In this article we will look at the main types of batteries and help you choose the most appropriate ones for the example of a camera and a screwdriver.

Types of batteries for small-sized devices

Conventional AA batteries. These cheap and common sources of power to this day do not give up their positions. They are used in wireless mice and keyboards of economy class, remote consoles, cheap camera-soap boxes, flashbulbs, children's toys, etc.

However, for modern digital photo-batteries, batteries are not an option - they are too fast to sit down. So which batteries are better for the camera? It depends on the device itself and the frequency of using it. The most popular are environmentally friendly modern nickel-metal hydride batteries. Have an operating voltage of 1.2V and a passport capacity in the range 2500-2700mA / h. Lithium batteries are also suitable for cameras.

What should I consider when choosing a battery for my camera?

First, we should not chase the passport capacity of a large size. As practice shows, the manufacturer is important here, so the Varta with a capacity of 2700 mA / h significantly exceeds the Ansmann capacity of 2850 mAh.

Secondly, in search of an answer to the question "what good battery to buy?" Consider its dimensions - some models have non-standard sizes, because of what may not come to any device.

Thirdly, consider the intensity of the use of batteries. If you frequently use the camera, you may need to recharge once a week or even more often. In this case, you should use a battery with a capacity of at least 2700mAh. If the camera is used infrequently and their power sources for weeks are "in standby mode", use models with a low-level self-charging current.

Choosing a battery for a screwdriver

Batteries for screwdrivers are of the same types as for the above-described devices. They are characterized by a large margin of power. So which battery is best for a screwdriver? Below we describe the features of the main types of these devices, and what battery to take - you decide.

Nickel-cadmium batteries contain a lot of toxic materials and the strongest allergens, but they have a much larger volume compared to others. Up to 1000 recharges are allowed.

Nickel-metal hydride batteries. They are harmless and eco-friendly, but in comparison with nickel-cadmium they have a power of half as low and an allowable number of 500 recharges.

Lithium batteries. More powerful than the previous options and without the memory effect, but they do not tolerate negative temperatures.

As for passport power, the recommendations here are the same as for camera batteries. So decide what a good battery and which one is not.

What should I consider when choosing a screwdriver battery?

The effect of memory. It is present in nickel batteries. The essence of the effect in the loss of capacity when charging a battery that is not fully discharged. That is, to ensure the normal operation of such a battery, it is necessary to completely discharge it before charging, which brings certain inconveniences.

Capacity. The bigger it is, the longer the battery will last without recharging. Modern models allow you to work continuously for hours.

Charging time. Important: The battery should not be charged more than the time taken to discharge.

Here, in fact, that's all. We hope that the question of what a good battery and what is not, is no longer worth it for you.