Agm battery1/31/2024 ![]() These vehicles require rapid charging and discharging cycles something that traditional flooded lead-acid batteries can’t handle well. They’re entry-level batteries that use the same chemistry as gel batteries, but in an innovative way that allows them to be used in stop-start vehicles. EFB Batteries 101Įnhanced Flooded Batteries (EFB) are a more advanced version of standard wet-flooded technology. It also won’t explode when exposed to heat from sitting too close to your engine compartment. An AGM battery won’t freeze in cold conditions like those found in Alaska or Canada. They’re less susceptible to damage caused by extreme temperatures. Because of this, these batteries are great for off-road vehicles that are prone to rolling over during use. It doesn’t matter if you leave them on their side or upside down for days at a time. They’re also spill-proof and vibration resistant.īecause of their construction, AGM batteries can’t leak acid. AGM batteries can last up to twice as long as conventional batteries in deep discharge cycles. They’re useful for providing battery backup when there is no available grid power.ĪGMs are ideal for anyone who needs more starting current from their vehicle than an EFB battery can provide. You can also use AGM batteries in off-the-grid power systems, such as solar panels. They will give you performance that is equal to or better than the conventional battery. In these applications, you can use AGM batteries in place of conventional lead-acid batteries. AGM Battery UsesĪGM batteries are best suited for motorcycles, boats, cars, and RVs. You can damage AGM batteries by overcharging or discharging too much. This type of low-current charging is critical to the AGM battery’s operation. Then, the charging device will maintain this level. The charger will power up until it reaches about 14.6 volts, or whatever energy level that the manufacturer considers appropriate. You can charge them using a battery charger that has the AGM mode enabled. Charging AGM BatteriesĪGM batteries are charged with a slow, constant current. This results in a longer life span when compared to other types of batteries. Their sealed design improves the overall efficiency of your AGM battery. You can consider this a sophisticated gel battery design that results in less electrolyte loss than more traditional flooded lead-acid designs. The biggest difference between AGM batteries and other types of deep cycle batteries is that they use Absorbed Glass Mat (AGM) technology. AGM Batteries ExplainedĪGM batteries are a type of deep-cycle battery. Keep reading so you can make the right decision for powering your car. Knowing the differences between these two types of batteries will help you choose which is best suited for your vehicle. Many wonder if they can trade these batteries for more affordable EFB batteries. If the batteries have been stored for 6 months, additional charge/discharge cycles may be necessary to get the batteries to reach full capacity.ĭamage or failure due to excessive self-discharge, extended storage without boost charging and/or inadequate charging will often require replacement which is not covered under the terms of the manufacturer warranty.įor more information on battery storage and installation, please refer to the Battery User Manual.With the expansion of the Start-Stop engines, almost every vehicle rolling of the production line will either require an EFB or the higher performance AGM type battery. When the battery reaches Absorption voltage, maintain charge for 3 hours. Boost the battery at the recommended Absorption voltage (2.45 VPC) at a charge current equivalent to the C/5 rate of the battery.Ģ. A refresher charge every 3-4 months is ideal.ġ. When an AGM battery is stored for extended periods, a refresher or boost charge should be performed to avoid excessive discharge and possible freezing in very cold temperatures. Avoid placing the batteries directly on concrete floors. The rate of self-discharge decreases at lower ambient temperatures and will increase significantly when stored in consistently warmer ambient temperatures – up to 50% faster at 35✬ (95✯).ĪGM batteries should be stored in a cool (above freezing), dry location unpackaged or in the original packaging. When not in use, it is typical for AGM models to naturally self-discharge at a rate of 2% per month at 25✬ (77✯). Modified on: Mon, 18 Oct, 2021 at 5:08 PM Solution home Battery Maintenance & Storage Storage AGM Battery Storage
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