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Battery swap 36volt Lithium?
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<blockquote data-quote="Smells Like Sulfur" data-source="post: 5820825" data-attributes="member: 23644"><p>The charging and float voltages for lead acid and lithium are very different, and those motors are calibrated to use / charge a lead acid battery. Any problems caused by a lithium battery can be mitigated by using the proper alternator and/or charging equipment that is designed for lithium.</p><p></p><p>I've got an old truck that charges its lead acid battery to 14.7 volts, which is way more than lithium should take. If the battery management system didn't shut the battery off, it could overcharge, and potentially create a fire (depending on which lithium chemistry the battery is). When the alternator is adjusted down to 14-14.4v, there's no more issues. I run my truck on lithium all summer, and switch back to lead acid in the winter because I'm too lazy to install heating pads. It's not plug and play, and the lithium battery requires a separate charging circuit.</p><p></p><p>The batteries themselves aren't the problem, it's people that don't understand that you can't just buy a lithium battery, drop it in your boat, and expect it to work without modifying some additional things, like the alternator charging voltage / profile.</p><p></p><p>Lithium batteries are superior to lead acid in almost every way, except for low temperature charging, but like I said before, that can be mitigated with heating pads, and most of them can be discharged well below freezing.</p></blockquote><p></p>
[QUOTE="Smells Like Sulfur, post: 5820825, member: 23644"] The charging and float voltages for lead acid and lithium are very different, and those motors are calibrated to use / charge a lead acid battery. Any problems caused by a lithium battery can be mitigated by using the proper alternator and/or charging equipment that is designed for lithium. I've got an old truck that charges its lead acid battery to 14.7 volts, which is way more than lithium should take. If the battery management system didn't shut the battery off, it could overcharge, and potentially create a fire (depending on which lithium chemistry the battery is). When the alternator is adjusted down to 14-14.4v, there's no more issues. I run my truck on lithium all summer, and switch back to lead acid in the winter because I'm too lazy to install heating pads. It's not plug and play, and the lithium battery requires a separate charging circuit. The batteries themselves aren't the problem, it's people that don't understand that you can't just buy a lithium battery, drop it in your boat, and expect it to work without modifying some additional things, like the alternator charging voltage / profile. Lithium batteries are superior to lead acid in almost every way, except for low temperature charging, but like I said before, that can be mitigated with heating pads, and most of them can be discharged well below freezing. [/QUOTE]
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Battery swap 36volt Lithium?
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