These versatile down converters with constant output voltage perform from Solar Converters, Inc many functions. Sometimes a 24 V system is made up of two 12 V batteries in series and a 12 V load is taken off of the one 12 V battery. This unbalances the voltage distribution of the 2 X 12 V batteries ultimately leading to the destruction of both batteries. These products maintain the voltage balance of the 2 X 12 V batteries preventing this unbalance and allowing loads to be taken off of either of the 12 V batteries in a 24 V system.
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DC Autotransformers
These products have bi-directional power flow. For example the 12 / 24 V model will produce 12 V from 24 V AND can be connected backwards to produce 24 V from a 12 V source. Handy for driving a 24 V pump from a 12 V power source.