What battery capacity to choose

Despite the fact that modern batteries differ not only in the principle of manufacture, but also in purpose, the main criterion that determines the suitability for use in specific conditions, as well as the duration of its operation on one charge, is capacity. Reflects this parameter the amount of current that a fully charged battery is capable of delivering for 20 hours of continuous operation. The higher this value is, the less often you will have to charge the battery.

Battery capacity

Top battery manufacturers

A large number of European and Japanese companies are currently engaged in the manufacture of compact batteries, for many of them such devices are the main specialization. You should pay attention to the products of the following companies:

  1. Varta;

  2. Bosch;

  3. Topla;

  4. Exide;

  5. Volat;

  6. Eurotop;

Before giving an advantage to a particular model, you should familiarize yourself with its characteristics, as well as study user reviews that have highlighted their strengths and weaknesses. You can find useful information on the Internet, on thematic forums and on social networks.

What should be the capacity of the battery? Battery types

Speaking about such a concept as capacity, it is necessary to differentiate between specific batteries depending on the functional purpose and conditions of their operation. The thing is that a great variety of models are hidden under the general name 'battery', from a compact AAA-size battery to a starting battery for a truck tractor.

Portable batteries for electronic devices

The capacity of such devices is measured in milliampere-hours and the higher it is, the longer the smartphone or camera will work without the need for recharging.

  1. The battery capacity for a mobile phone or smartphone must correspond to that of the original battery installed by the manufacturer. On sale there are models from 600 mAh and up to 3500-4000 mAh, when choosing, one should give preference to the one with a larger declared capacity;

  2. Portable power supplies, the so-called Powerbanks, are used to charge various electronic equipment. In order to decide the question of 'what capacity to choose a powerbank', it is necessary to determine which power consumers will be powered by this device, and then divide the capacity of the portable charger by the capacity of the device's battery. Ideally, the powerbank should provide the ability to perform 3-4 full charging cycles: if the smartphone battery has a capacity of 4000 mAh, the powerbank used with it should have at least 12000-15000 mAh units;

  3. Traction batteries used to power a boat electric motor or serving as a direct current source for a voltage of 12 volts must have a capacity of 15-20 ampere-hours or more. The higher the power consumption of the connected device, the higher the battery capacity should be;

What should be the battery capacity for a car?

Starting batteries for a car are selected depending on the type and power of the engine:

  1. Most gasoline-fueled passenger cars require a 40 to 80 amp-hour battery;

  2. Diesel cars require an increased capacity battery for correct operation – from 80 to 120 ampere-hours;

  3. Heavy fuel trucks with large engine displacement require a powerful battery with a capacity of up to 150-200 Ah;

In the following articles, our experts will tell you how to choose an external battery and the secrets of choosing a battery for iphone.


Attention! This material is the subjective opinion of the authors of the project and is not a purchase guide.

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