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Ian Johnston wrote:
"Meindert Sprang" wrote in message ... No, because the other one is connected in series, not in parallel. So one battery gets drained faster that the other and that is the success-formula for wrecking that battery. No worse, surely, than it would be if there was only that battery and a 12V system. It has no way of knowing that some of its output is being boosted by another 12V. I wouldn't have expected there to be any problem at all with the OP's idea - but if he was worried, he could always swap the batteries every season so they get roughly equal use as the 12V supply. mm, the installation and maintenance of most boat batteries is so sub-optimal that pulling a few watts off one battery probably won't make any discernible difference, if done within reason. -- Lithium ion internal and external batteries. Internal from £30 External from £75 (trade) All batteries factory new and guaranteed. http://www.surfbaud.co.uk/ e-mail (www.rot13.com) |
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