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FJR Motorcycle Forums
Technical & Mechanical Problems
Steaming battery: diagnosis help needed
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<blockquote data-quote="Fred W" data-source="post: 1219362" data-attributes="member: 3828"><p>My vote would be the new R/R you put in.</p><p></p><p>You need to measure what the charging voltage is across the battery when the engine is running. It should be close to 14.2V at idle and should not increase when revved up to higher rpm. If it is considerably higher it will boil the electrolyte and cause it to steam.</p><p></p><p>Jumping the battery off a car battery will not screw up the battery (since it is only 12.8V) but it may have damaged your R/R.</p></blockquote><p></p>
[QUOTE="Fred W, post: 1219362, member: 3828"] My vote would be the new R/R you put in. You need to measure what the charging voltage is across the battery when the engine is running. It should be close to 14.2V at idle and should not increase when revved up to higher rpm. If it is considerably higher it will boil the electrolyte and cause it to steam. Jumping the battery off a car battery will not screw up the battery (since it is only 12.8V) but it may have damaged your R/R. [/QUOTE]
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FJR Motorcycle Forums
Technical & Mechanical Problems
Steaming battery: diagnosis help needed
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