Don't remove the powerpoles from that lead, add Powerpole connectors to your battery, and everything else that needs or uses low voltage power.? Pairs of connectors can be assembled handed and so make connecting a supply the wrong way round much less likely.
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I have a constant Voltage and Current buck/boost regulator with PowerPoles and so can hook this up to provide regulated power with the voltage and current limits of my choice from a variety of sources to anything.
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