By Charlie Wing
This publication isn't really for the rank newbie, but when you might have handed that level and feature a uncomplicated realizing of electrical energy and also you are looking to bring up that figuring out, overview and overview your current installations, set up new gear thoroughly, and retain your boat electrics secure, it's going to be aboard your boat. I usually suggest it to my extra technically-capable shoppers.
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02C cutoff recommended). Float cycle. The ﬁnal stage, provided the battery is still in the charge mode, is designed to just maintain the battery in its fully charged condition. 1 volt above the rested, open-circuit voltage, or approximately 13 volts. 5 volts. Charging Recommendations Equalization. As we saw on page 29, a fully charged battery consists of pure lead plates immersed in a sulfuric acid electrolyte; a fully discharged battery consists of lead sulfate plates in pure water. If a battery is cycled short of full charge its plates will retain the last 10% of lead sulfate.
The shape of the curves was established with one set of data each for wet-acid, AGM, and gelled-electrolyte batteries. The golf cart curve was assumed to be of the same shape and ﬁtted to the single published 100% discharge point. size 8D (220 Ah) and were bought for list price, less 15%. The costs (2005) assumed were: wet-acid $544, AGM $444, and gelled $308. The equivalent pair of 6volt golf cart batteries cost $180. 17 leads to two conclusions: 1. Considering the cost of the batteries alone, the optimum depth of discharge is approximately 50%.
Various tricks are employed in sealed batteries to recombine the gases into water, but, if overcharging and gassing are too vigorous, all batteries vent 30 Batteries gas and lose electrolyte. Water can be replaced in a conventional wet-acid battery. In a sealed or gel-cell battery, it cannot. • As we have seen, charging regenerates the H2SO4 electrolyte. 83 times as dense as water. As the H2SO4 is generated, it tends to sink. Since it is the H2SO4 that makes the electrolyte conductive, its absence at the top of the cell limits the acceptance of charging current.
Boatowner's Illustrated Electrical Handbook by Charlie Wing