Every motorist has repeatedly faced the problem of battery cell discharge, without which it is impossible to start the engine. Most often it occurs in winter, when sub-zero temperatures battery charge gives very fast. And it does not matter, from what manufacturer you purchased car battery – price in Ukraine on different models can differ by several times, but the fact of the rapid discharge in the cold is present in all cases,. How to be in this situation,? As an option, you can borrow energy from another machine. This is optimal, if you have planned a long way, but is not essential, if you want to walk a short distance. The battery does not have time to collect sufficient charge. Тогда лучше подключить внешнее устройство для подпитки. 
types of batteries
If we take into account the physical parameters and composition of the devices, it should be made 3 battery type, on the market:
- malosurmyanistye, consisting of lead-based standard without additional additives in the plates;
- hybrid, a plate having a different composition (malosurmyanistym and lead-calcium with silver additives);
- calcium-based devices.
Each of them has advantages and disadvantages. Malosurmyanistye units, for example, They are at the highest self-discharge. The water in the electrolyte solution rapidly boils, but they are not afraid of deep discharge. Calcium batteries do not give a lot of energy in the quiescent state, but deep discharge can lead them to the utter uselessness. Hybrid battery - one of the most stable types of devices, the price of which is much higher.
If we consider the batteries from the perspective of the consumer, it should be paid attention to, whether they are served. This is an important factor, associated with the nuances of the process of charging. Maintenance-free batteries do not imply the intervention of the human factor in their device. Often in the case of these models there is no removable elements, and there is an inscription «Do not open». There is a separate type of maintenance-free batteries with removable parts, but they almost never left on our market.
A key advantage of the non-performing battery is, therein that the composition assumes a minimum evaporation of the solution. Minus here - the impossibility of repair and the high price. The same device can be serviced and must be topped up with distillate, maintaining battery life.
