Battery invasion: things to know

Battery invasion: things to know

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Electric cars and scooters, domestic energy storage systems, and finally with tablets and smartphones… the batteries are increasingly present in our life, but do we know how to use them in an economical and safe way? What are the maintenance rules? What about security? Here are some (not all) of the things you need to know to avoid taking risks with batteries.

The discharge capacity of the batteries. An important but little known (and poorly communicated) indicator of the quality of batteries (especially for cars and scooters) is the discharge capacity, which indicates the amount of energy a battery can provide. It can be 'nominal' or 'peak' and is indicated with a capital C on the outer casing next to a number (2C, 3C, 30C ...) which is higher and greater and the power that can be supplied. Pay attention to the numbers before and after the C: if on one battery of 100 Ah you find written 2C means 2 × 100 = 200 A, but if it is written C2 it means 100/2 = 50A.

Precautions in the use of batteries. A battery is an energy container like a petrol can, the difference is in the characteristics and in the amount of energy contained (which is less in the case of batteries), but while no one brings a tank into the house, the batteries they will be closer to us in everyday life. Let's think for example of the removable lithium batteries of some scooters, which can be recharged at home. The accumulators of PCs and tablets worry us less, but even there we need a little caution.

Fire risk. Batteries can catch fire. It happens quite easily by shorting the terminals and seeing that they normally batteries they are not equipped with protections against improper use, better to keep them away from children as is done with dangerous objects.

Emissions risk. Recharge the batteries in a ventilated room and not in the bedroom. In the event of an electronics failure, the batteries can emit flammable gases. Leaded ones, for example, emit hydrogen in case of over-charging, so it is better to recharge them in a room where there is good air exchange. This is especially true for the batteries of a certain power, such as those for electric cars and scooters, but the speech can also be extended to the most commonly used accumulators.

Water risk. The batteries must stay away from water. Water is an excellent conductor of electricity and in addition to representing a risk it can seriously damage the battery. This applies to all accumulators, even sealed ones which usually have exposed terminals.

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