Chargers and power banks - Tehno.guru

Review and rating of the best chargers for phones, tablets, cars and power banks. User reviews.

Battery charger design and operation Almost all car batteries are charged using pulsed or direct currents. Based on this, a calculation is made of what current strength the charging should have. Often this figure is equal to 1/10 of the battery capacity. So, for example, the full volume of a car battery is 100 A / h, respectively, the type of battery must have 10 Amperes. In such... Read moreRelevant: how to choose the right charger for your car battery

A portable battery for a phone: what is it? The answer to the question of what is a Power Bank is quite simple. Think of your car (or your friends' car). What actions are taken if the gadget is discharged on the road? That's right, the car charger is plugging in. In fact, an external battery is the same miniature car in your pocket. Of course, this is all exaggerated... Read moreAlways in touch! How to choose a Power Bank so as not to worry about charging the battery in the absence of electricity

Why do you need a "power bank" for a phone, tablet, and what is it? Literally translated, PowerBank is a store of energy. The device is an autonomous charger, with which you can charge your gadget without having access to the mains. In fact, this is an additional battery for a smartphone, tablet or laptop. Such an external power supply is charged in advance and saves... Read morePowerBank batteries: characteristics of popular models with reviews

Schematic diagram of a charger Sometimes you need to charge the batteries of various devices, but there is no suitable charging, a universal battery charger will come to the rescue. The scheme of its operation is quite simple and compatible with almost any device. The universal charger has the following scheme of work. For different types of batteries, it is enough just to change the charge current. It should be 0.1 A from... Read moreWhy universal battery chargers are good: choosing the best models