Battery Management

摘要

Traditionally, the builders and maintainers of boats using more than one battery connected them in such a way as to afford the user some degree of redundancy, and with good reason: It's vitally important to be able to start the engine when you want to. The most common battery installation involved two equally sized battery "banks" that were connected to the engine via a battery selector switch offering [battery] 1, [battery] 2, BOTH [batteries combined in parallel] and [all batteries] OFF. The switch enabled the user to "manage" both the current leaving the batteries (for starting and other vessel loads) and the current that is sent to the batteries from the engine-driven alternator. Typically, for starting purposes, the skipper turns the multi-position switch to BOTH, which allows the engine's starter to receive the maximum amount of cranking amperage by drawing from both banks.