View single post by jk | ||||||||||
Posted: Fri Jul 27th, 2018 14:38 |
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jk
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GeoffR wrote:Robert wrote:Once a battery has gone below a predetermined, critical voltage, NOT to zero, then it can become unstable and dangerous to attempt to re-charge it, that's why if a battery has gone below the critical voltage, the correct charger should refuse to charge it.Absolutely correct, and very expensive when a set of cells costs $64,000! Boeing reasoned, correctly in my opinion, that it was better to allow a complete discharge than have the battery die just short of an airport. A 787 costs rather more than $64,000. Well those spares or replacements are pretty expensive as well! How many cells in the set? Voltage and Amperage? Cant they recharge from the engines?
____________________ Still learning after all these years! https://nikondslr.uk/gallery_view.php?user=2&folderid=none |
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