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--- electrical:12v:alternator [2022/06/23 11:15]
frater_secessus [effect on alternator]
+++ electrical:12v:alternator [2022/06/23 11:16]
frater_secessus [alternator current rating]
@@ Line 46: / Line 46: @@
 ===== effect on alternator =====
-{{ https://img.mousetrap.net/misc/transit250alternator.jpg?150}}Charging the house batteries from the alternator increases the load on the alternator and can be expected to contribute to somewhat earlier failure.  In practice it's usually a non-issue if one avoids overheating((as when idling)) or overloading((as with giant AGM or lithium banks)) the alternator;  alternator failures from aux battery charging are quite rare.
+Charging the house batteries from the alternator increases the load on the alternator and can be expected to contribute to somewhat earlier failure.  In practice it's usually a non-issue if one avoids overheating((as when idling)) or overloading((as with giant AGM or lithium banks)) the alternator;  alternator failures from aux battery charging are quite rare.
 > I have created hundreds of designs and installed around 100 systems, many with isolators or solenoids. In four plus years not one customer has come to me saying that their alternator failed. I do tell them not to sit in a hot parking lot idling their engine to charge their batteries. -- jimindenver((https://vanlivingforum.com/threads/new-wiring-sketch.43877/post-544396))
@@ Line 59: / Line 59: @@
 ==== alternator current rating ====
+{{ https://img.mousetrap.net/misc/transit250alternator.jpg?150}}
 In general, vehicles with higher-rated alternators (150A, for example) will handle the extra charging duties better than vehicles with lower-rated alternators (60A, for example).  The rating in Amps will be listed on the window sticker, often on the alternator housing itself, or can be looked up using a VIN decoder for your automaker.

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