![]() ![]() As mentioned, LiFePO4 batteries are costly.The same can not be said of other lithium ion chemistries. Very safe - the odds of a "thermal runaway" (aka battery fire) are very low.Arguably, LiFePO4 batteries are more environmentally friendly than lead acid.Most lead-acid batteries lose capacity or cycle life if they're discharged more than 50%. LiFePO4 batteries are less susceptible to problems caused by depth of discharge.a LiFePO4 battery can be dropped to 20% of charge without long-term damage.Longer cycle life, as LiFePO4 batteries last 1,000 to 3,000 charge and discharge cycles, compared to similarly sized lead-acid batteries, which can range from 200 - 1000 cycles (again, assuming depth of discharge is within recommended limits for both battery types).Long life span (5-10 years) vs lead acid (1-3 years), depending on depth of discharge and assuming that the cycle limit doesn't kill the battery first.Deep-cycle lithium iron phosphate batteries also strike a good balance between energy storage and life-span.they can be depended upon for years of use. This particular battery chemistry is popular in automotive applications, as it's durable, stable, and well-suited to starting vehicles. While there are quite a few common types of lithium ion batteries (with more being invented every day, it seems), lithium iron phosphate batteries have been around a couple of decades or so (invented in 1996). Lithium Iron Phosphate Batteries - Pros and Cons It's possible to find a 130ah wet battery in the group 31 size, but it's not at all easy to find anything bigger than 100ah in a group 31 battery if you only look at sealed, AGM, or gel batteries (most of what we find that will fit in the ArkPak is 100ah or less). ![]() In the case of the ArkPak, the largest battery that will fit inside is a Group 31. The advantage in these wet batteries is lower cost and - if they're the type that require maintenance - they often times have more energy capacity. "Wet" batteries are available in maintenance free configurations or they can require periodic refilling. Gel and AGM batteries are the most expensive, but they are also the most durable and last the longest. if the time frame is reduced, the capacity rating drops.įinally, it's important to note that there are different types of lead-acid batteries, each of which has their own pros and cons. High current loads rapidly diminish rated capacity.most deep-cycle lead acid batteries are designed for slow, steady discharge over a 20+ hour period.There are some concerns about gas discharge and acid leakage, only this is relatively rare on newer maintenance free batteries.Discharging deep-cycle lead-acid batteries below 20% (and sometimes 50%) permanently reduces the battery's capacity.Shorter lifespan and cycle life than LiFePO4 batteries, especially when they're deeply discharged.Compared to LiFePO4 batteries, lead-acids have a low energy-to-weight ratio. Lead acids are reliable and durable - they're built to take a lot of abuse, especially in automotive applications where vibration can be a serious problem.Very affordable - a Group 31 size deep cycle lead-acid battery with 100ah of capacity will cost $150 - $300, depending on type and quality.You can find a lead-acid battery just about anywhere you find auto parts. Indeed, the main argument favoring the lead acid battery is that they offer substantial benefits at a low cost. This popularity is partially a result of the reliability of lead-acid batteries, but also a result of their low cost. Lead-acid batteries account for about 40% of the batteries sold in the world. Yet despite the introduction of newer battery technologies, lead acids remain quite popular. The lead acid battery has been around since the 1800's, and is perhaps the oldest type of battery design available. Here's a rundown of the differences to help you decide between the two batteries, both of which are compatible with the newest version of the top-of-the-line ArkPak. Still, for the extra cost, there are a lot of advantages with LiFePO4 batteries. At this premium price, they should perform better. Generally, deep cycle lithium iron phosphate batteries cost 3-10 times as much as a similarly sized deep cycle lead-acid battery. Comparing a deep cycle lithium iron phosphate (LiFePO4) battery to a deep cycle lead-acid battery is like comparing a new Formula 1 race car to a used Miata: While the LiFePO4 battery is better than lead acid in just about every measurable way, the cost difference is extreme.
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