This will result in the longest life from all batteries and will minimise the chances of individual batteries failing prematurely which is a strong possibility if a DC/DC converter is not used. Another major factor which should be taken into consideration when replacing a lead acid battery with a LiFePO4 battery is that due to the higher energy density and greater performance of the lithium battery often a smaller battery can be used which will provide equivalent or better performance compared to the original lead acid battery. For many applications a 60Ah LiFePO4 battery will provide equivalent performance to a 100Ah lead acid battery. This difference in performance can clearly be seen if both battery types are compared side by side in high current drain applications for example if used to power an electric boat motor at high power settings. What many people fail to realise about a lead acid battery is that its capacity Ah rating is usually specified at the 20 hour discharge rate. At high rates of discharge the effective or "real" battery capacity is reduced considerably due to "Peukert's Effect". A typical 100Ah lead acid battery when discharged in an hour or two may have an actual measured capacity of as little as 60 70Ah. LiFePO4 batteries are not negatively affected in the same way by Peukert's Effect as are lead acid batteries. electric motor for boatsAnother great benefit of Lithium Iron Phosphate batteries for boating applications is due to their inherent safety features. Since they do not produce flammable hydrogen gas under any circumstances even if overcharged a LiFePO4 battery can be safely installed in a confined place in a boat or ship without fear of a fire or explosion occurring. There is absolutely no maintenance required so a battery can be fitted into an out of the way space in an electric boat such as under seats, under stair wells, in the hull, etc.

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