The resulting gas created from this process is highly flammable and could lead to dangerous situations if not addressed quickly. Additionally, extreme heat may boil off the electrolyte stored inside the battery. This can cause the cells to start breaking down – leading to various issues, including corrosion of the terminals and damage to internal parts. When a battery becomes overcharged, its cells become exposed to too much energy and heat. What is OverchargeĪn overcharge on a 12V system is a voltage on your battery greater than 14.4V. Is anything over 12V considered overcharged? The answer to that is “no.” A battery can safely hold around 14V and is not considered overcharged. Most of these batteries are considered fully charged when around 14.4V at rest. The charge voltage is the amount of electricity that must be present in an electrical system to be considered “fully charged.” In a 12V battery, you will likely get more than that amount of voltage. As we review the potential for overcharging, the same principles apply to the following battery type:Īll of these batteries are 12V and can be charged and re-charged with the potential of being overcharged. They are lead-plates set in an acid solution and produce 12V of power. These are flooded batteries that have been around for decades. We are referring to the batteries we all use for boats, cars and RVs. However, knowing how battery voltage works, you can watch for issues and signs of your battery being overcharged. But can that power be overcharged to where it will damage the battery or reduce battery life? As you read above, “yes” it can be overcharged. After all, a battery is a method to store power. When we refer to overcharging, we are talking about going above the battery’s capacity to safely and effectively hold a charge. Final Thoughts How a Deep Cycle Battery Can Be Overcharged.How a Deep Cycle Battery Can Be Overcharged.The information below applies to all kinds of cell batteries, including a marine battery, AGM battery, or even lithium-ion. How to avoid your battery from being overchargedĪs a side note, this post relates to all types of 12V batteries that you can use for your boat, RV, or trailer.How a deep cycle battery can be overcharged.This post will review how deep cycle batteries can get overcharged and how you can to avoid it. However, things must go wrong for your battery to get more charge than desired. Thank you again for the calculator resource.Can you overcharge a deep cycle battery? The short is “yes”, it is possible to overcharge. I could enter each item separately to get amp hours then total the amp hours at the end. What is that compared to 200 AH at 20-Hr Rate? Would this be sufficient for my setup? The calculator shows I would need a 216 AH battery running all items for 6 hours. Any suggestion on getting a better feel for how many AH I need in my Deep Cycle Battery? I am looking at one that says 389 Capacity minutes. With such variables in frequency of usage how do i figure the battery needed? The calculator, which has helped me a lot, figures I am using all DC 12volt items the entire time which is not the case. My lights I will use only when it is dark and when I am awake, the pump is only when I turn the water on. 9 LED 12v lights, A 12Volt Water pump, DC plug/USB Charger/Monitor Combo, and another USB/DC Charger. I have totaled my setup that I am building in my Cargo Trailer Conversion to be 16.3 Amps. I run a small fridge led lights all around and basic charging necessities iPad etc.Īll the gear and no idea!!! Is my favourite saying…. But I would still like it set up to work as it should. The 4×4 drives around enough to keep the batteries topped up most of the time. I would like to go camping every month but the reality is 2-3 times a year for only weekends away and 1 week somewhere special. Lastly, trying to fit a square peg in a round hole, what if I was to get a manual battery isolator to split the batteries back to 105ah then just switch the alligator clips between batteries, a bit of stuffing around but wil his charge the batteries fully? Also I’m looking at 2× 80w solar panels (160w) foldable with a regulator for each can I plug these two panels together (dual Anderson plug) or will the two regulators confuse each other. I purchased a10ah smart battery charger, it was half the price and I got a bit excited, my question is will this fully charge these batteries eventually? I realise that 10% amp size for the charger is the recommendation. From what I have learnt by reading all of the post that means I have 210ah and a 12 volt battery bank. Hi Tech, I have 2× 105ah batteries in the tray of the ute, running parallel, using a red arc dual battery system which seems so far keep these batteries topped up, using HD welding cable.
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