If you want to have a 800 amp hour battery bank, it will weigh (800/1.567) 510.5 pounds.īattle Born batteries hold 100 amps and weigh 31 pounds. The best way to visualize this is to look at the Amps per Pound at 12 volts.ĪGM batteries hold 105 amp hours and weigh 67 pounds
Lithium batteries weigh less than half of a regular battery. The first is weight, and the second is usable power. You might be wondering, why switch to lithium at all if they take up practically the same space and give you the same amount of power? There are two answers to this question. Instead of Battle Born and Renogy offering their batteries in “custom voltages” they packaged them as 12 volt batteries.
#Battle born batteries vs dakota lithium series
In our case where we run a 48v motor, we simply have four 12 volt batteries hooked up in series to create the 48 volts we need to operate. Lithium batteries are made up of cells, and the entire battery pack can have any voltage value you want! This once again becomes a problem since people are used to a battery being 12 volt.
The second advantage comes with the voltage. Lithium batteries can come in a huge variety of shapes and sizes, which sadly leads to people wondering “which side is the top?” Direct replacement batteries do away with this metal block to lithium by packing it into a familiar shape and size. For our entire lives, batteries have been this rectangular box that sits in our boat or car and has two terminals on it. Now that we know the major players in “direct replacement” batteries, lets look at why they are more sought after than a regular lithium battery. Renogy Batteries are also direct replacements for lead acid and AGM batteries, but these are even lighter in weight! Their 100ah battery weighs in at only 28 pounds! These companies sell lithium batteries that are the same size as the more popular lead acid and AGM batteries, but at a fraction of the weight. Better battery technology has come down in price and the “better batteries” of 2014 are no longer prohibitively expensive.Īt the moment, there are two companies that seem to be reigning as king over the “direct replacement” lithium batteries. They provided us with a lot of power in a large space and required little maintenance.įast forward to the present, and our AGMs are old and outdated. When we did our conversion to electric propulsion back in 2014, we chose AGM batteries, simply because they were the most cost effective at the time. The more power you can carry in your batteries, the more power you can use with your motor. These boxes of energy house the electricity that the electric motor needs to propel your yacht. The heart of an electric setup is not the motor, but actually the batteries. Electric motors are great, they have few moving parts to maintain or fail, and they can run effortlessly forever…or until the power runs out!
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