From the anode to the cathode or what battery to the car

From the anode to the cathode or what battery to the car

The times when car batteries were only produced using lead-acid technology and the choice was limited to 4 or 5 companies are now a thing of the past. Nobody at that time was wondering what kind of battery…
From an anode to a cathode, or what kind of battery for a car?
The times when car batteries were produced exclusively in lead-acid technology and the choice was limited to 4 or 5 companies are now a thing of the past. Nobody at that time was wondering which battery would be the best for the car. Nowadays, the market outperforms not only the offer, competing in terms of efficiency and safety, but also in terms of types and solutions for different cars. A different model will be installed in the electric Tesla Roadster, a different one in the hybrid Prius, and a different one in the Volkswagen Passat with the Start-Stop system – after all, each of these cars is diametrically different in terms of design. In the following article we will present which battery for the car we should choose. Does the cheapest mean the worst, and is the most expensive always a guarantee of quality?
Battery types on the market
Lead-acid batteries (SLA) are used in most vehicles, from passenger cars to delivery vans and motorcycles. An unquestionable advantage is the ability to restore factory parameters by charging the battery “empty”, but on the other hand, the disadvantage is the risk of sulphation in the event of long-term discharge. Gel batteries (GEL) – are used in vehicles that slowly but deeply discharge the battery, i.e. in off-road vehicles and those equipped with Start-Stop technology. Their advantage is resistance to shocks and work at different angles of inclination, while the disadvantage is the requirement of carefully selected charging conditions – otherwise they may lose their factory capacity. Batteries with increased efficiency (EFB, AFB, ECM) – are twice as efficient as traditional lead-acid batteries, used in vehicles with extensive electronics and for urban driving Start-Stop (a large number of firings). Advantages? Much higher efficiency for little more money compared to SLA. Disadvantages: Complete lack of discharge resistance. Absorbed Glass Mat (AGM) batteries – the most efficient but also the most expensive batteries available on the market, used in hybrids and in vehicles with fast, but shallow current consumption (mainly emergency vehicles – ambulances, police cars). One of the advantages is their total maintenance-free operation – they do not require electrolyte replenishment. On the other hand, the disadvantage – apart from the high price – is the lack of resistance to high temperatures.
What kind of battery should we choose for a car?
The principle is simple – what kind of battery the manufacturer used for the car, such type should be chosen by ourselves. If the manufacturer used an AGM battery – we do not choose SLA, because a traditional lead-acid battery will last for a maximum of several weeks. Choosing Absorbed Glass Mat instead of SLA will also not bring positive effects – too high temperature in the engine compartment will destroy the battery, and as a result – there is a risk of damaging the electrical beam. Pay attention to the capacity – we adjust the number of ampere-hours to the engine’s swept capacity. Starting current – the higher, the better, the better, it will not have any negative effects and will ensure better and smoother starting in winter. What is also important is the type of poles and shape of the battery – nothing good for the parameters if we do not fix it in our car?
Knowing which battery we should use for a car, we should check which battery the manufacturer installed and replace it with a similar one.

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