Leisure batteries, in any other case known as marine batteries or deep cycle batteries are commonly used for boating, motor-house, solar power storage mobility vehicles and powered golf trolleys.

They are substantially totally different from your conventional auto battery. Although comparable in dimension, weight and output voltage, leisure batteries are specifically designed to ship average levels of current over a sustained period. Your auto battery, alternatively, is designed to ship a really high present for a brief interval of time. Leisure batteries are also designed to be discharged to around 50% of their capacity, whereas your auto battery is seldom discharged beneath 90% capacity; as it’s always being trickle charged when your automobile is running.

Utilizing an auto battery underneath leisure battery situations will result in a really brief battery life. The fundamental distinction in behaviour and performance is as a result of construction of the battery plates and the separators between the plates. Leisure batteries have thicker plates and separators and due to this fact lose much less lively materials through the charge-discharge cycle.

Forms of Battery

The commonest type of leisure battery is of a lead-acid construction. These are available in two most important variants:

Flooded
Sealed
Flooded batteries, because the title suggests, have the acid freely immersing the battery plates. These batteries require a level of maintenance; a hydrometer to ensure that the electrolyte power is maintained within limits and they may additionally need topped up from time-to-time with distilled water.These batteries must be kept in an upright place, in any other case there may be the hazard of an acid spill. Acid spills can injury cloth, but may trigger significant chemical burns. Battery acid may be neutralized with bicarbonate of soda, and in addition with ammonia.

Sealed batteries require no topping up, and minimal upkeep – other than charging. The acid is contained in a glass-fiber mat surrounding the battery plates. One further variation of sealed battery is the gel battery. Here the acid is mixed with micro-silica to type a gel. Gel batteries can face up to increased temperatures, vibration and shock and are effectively suited to harsher environments similar to maritime activities. Sealed batteries can not spill acid when inverted. They also vent much less fuel and are extra suited to enclosed spaces.

Battery Care

Whichever type of leisure battery that you select you will need to realise that these batteries ought to by no means be fully discharged or left in a low state of charge for any significant time. Both of states can cause irreversible harm to the battery resulting from two essential causes:

Sulphation
Cell Reversal
Sulphation is the result of an inner chemical response, resulting in Lead Sulphate being deposited on the battery plates, showing as a whitish-gray deposit. In severe cases sulphation is irreversible. In minor cases some leisure battery chargers provide the battery with excessive current, high frequency pulses to try to break these deposits down.

Nearly all of 12 Volt batteries comprise 6 cells. If one in all these cells turns into considerably extra discharged than the others, then it turns into part of the load and the opposite cells will start to cross present by it, in a route to trigger it to change into much more discharged. This causes irreversible harm to the cell and battery and is more more likely to occur when the battery is in a low state of charge.

Battery Efficiency

The lifetime of your leisure battery is in inverse proportion to how low you enable the charge stage to become. For optimum life you must by no means allow your battery to get below 50% of its most charge. This has a direct impact on what rating of battery you must select in your needs. Over time your battery will ultimately turn into less environment friendly, so you possibly can low cost 20% of the capability as compared to the producers rating. After you have discounted this you need to estimate that you have only 50% of the remaining capacity available to you. So a battery rated at 100Ah may be discounted to 80Ah most capability with 40Ah usable capacity.

To calculate how much this can energy it’s essential to know the ability consumption of the appliances being powered, both in Watts (W) or Amps(A).

Watts(W)=Volts(V) x Amps(A)

So an equipment rated at 12W will draw 1 Amp from a 12 Volt battery. The battery rating is in Ah (Amps x hours), so based mostly on our usable capability of 40AH we might run this equipment for simply over 3 hours before having to recharge the battery.