RV BUYers

The Complete Guide To Deep Cycle Batteries

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Several times can be charged and recharged deep cycle batteries. Instead of supplying a quick burst of power for tasks like starting a vehicle, deep cycle batteries provide a steady supply for a prolonged period of time. Unlike cranking amps or cold cranking amps, deep cycle batteries are designed to be used for longer periods of time and do not have ratings to start a car, truck, motorhome, or bat. Dual-purpose batteries combine the capabilities of deep cycle batteries and cranking batteries. This is a topic for a separate post, however.

A brief overview of four types of deep cycle batteries follows.

Types of deep cycle batteries

Lithium Ion

Lithium batteries generate a charge by moving electrons between the anode and cathode. Unlike other types of batteries, it can be recharged faster and discharged almost completely without causing damage. Batteries made of lead-acid are about half as heavy as those made of lithium. This is why they are a great RV battery for boondocking since they combine all these features.

Flooded Lead-Acid Batteries

The process of deep cycling lead-acid batteries is done by filling the battery cells with distilled water as a means of transfer. For each cell to maintain its charge, it needs to be topped off every month. Since lead-acid batteries are charged in stages, it is possible to overcharge or undercharge them. In most cases, house batteries are the least expensive option because they can be recharged many times. Compared to lead-acid batteries, AGMs and lithium batteries typically last longer.

Absorbed Glass Mat (AGM)

This type of deep cycle battery has fibreglass between the plates to allow the electrolytes to pass through. In addition to being maintenance-free, this battery can be maintained without distilled water since it is “dry.” Lithium batteries are more efficient and quicker to recharge than lead-acid batteries.

Gel

They are similar to AGM batteries in that they do not require maintenance. Sulfuric acid and silicate gel are used to transfer electrolytes. Due to the fact that gel deep cycle batteries do not emit gases, they do not require ventilation, but their charging speeds are very slow. These batteries are equipped with wheelchairs and scooters.

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