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Outdoor & Recreation
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DEEP CYCLE BATTERIES and BUSH POWER
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<blockquote data-quote="SinHof" data-source="post: 114983" data-attributes="member: 972"><p>Hi All,</p><p>First up I would like to thank Condor for his great posts on all things low voltage (12 volt).</p><p>One aspect that has me a little confused when it comes to charging a second battery that is connected in parallel with the vehicle crank battery.</p><p>It has been my understanding; rightly or wrongly, that two similar batteries connected in parallel would be seen by the charging device as ONE battery.</p><p>Can somebody please explain how these newer smart vehicle alternators or other chargers can detect that a second battery is connected across the crank battery????</p><p>Toyota Landcruiser 100 series diesel vehicles run two batteries in parallel as standard and in my wagon both batteries are within 0.1 volt of each other most of the time; that said the batteries are never fully charged maxing out at 12.5 volts some hours after a long drive, here again from what I understand vehicle alternators will only charge the crank battery to about 70/80 % of charge at best.</p><p>Looking forward to some comments.</p><p>Cheers, SinHof.</p></blockquote><p></p>
[QUOTE="SinHof, post: 114983, member: 972"] Hi All, First up I would like to thank Condor for his great posts on all things low voltage (12 volt). One aspect that has me a little confused when it comes to charging a second battery that is connected in parallel with the vehicle crank battery. It has been my understanding; rightly or wrongly, that two similar batteries connected in parallel would be seen by the charging device as ONE battery. Can somebody please explain how these newer smart vehicle alternators or other chargers can detect that a second battery is connected across the crank battery???? Toyota Landcruiser 100 series diesel vehicles run two batteries in parallel as standard and in my wagon both batteries are within 0.1 volt of each other most of the time; that said the batteries are never fully charged maxing out at 12.5 volts some hours after a long drive, here again from what I understand vehicle alternators will only charge the crank battery to about 70/80 % of charge at best. Looking forward to some comments. Cheers, SinHof. [/QUOTE]
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Outdoor & Recreation
Camping
DEEP CYCLE BATTERIES and BUSH POWER
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