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Charging Lithium Batteries Vs Charging AGM Batteries
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<blockquote data-quote="condor22" data-source="post: 609996" data-attributes="member: 1932"><p>I disagree to an extent re charge rates for an AGM. If you Google "Maximum" it will give 30%. However if you Google "Recommended" most battery manufacturers state between 10 and 20 % and some 15% to 25% as a recommended charge rate. However maximum does not mean it is best re life span. It's all in the wording, lol.</p><p></p><p>Like Jaros I have a 130 AH AGM so the recommended rate is 13 to 26 amps at 10-20%. My charger is a variable (switched) charger in 10% increments from 3 to 30 amps.</p><p>It is set to 21 amps as I have always used the 10-20% rate.</p><p></p><p>All that happens with being a little lower than recommended, like Jaros, is it will take a bit longer to charge. Bottom line, charging an AGM at a too higher rate, will likely overheat the battery, especially in an Ozi Summer and shorten it's life. so why take the risk.</p><p></p><p>I only have 200 W of solar and the highest charge rate I've monitored is a bit under 14 amps, so when off grid I'm right at the lower end of the 10-20% range.</p><p></p><p>I'll add, Lithium is a whole different ball game.</p></blockquote><p></p>
[QUOTE="condor22, post: 609996, member: 1932"] I disagree to an extent re charge rates for an AGM. If you Google "Maximum" it will give 30%. However if you Google "Recommended" most battery manufacturers state between 10 and 20 % and some 15% to 25% as a recommended charge rate. However maximum does not mean it is best re life span. It's all in the wording, lol. Like Jaros I have a 130 AH AGM so the recommended rate is 13 to 26 amps at 10-20%. My charger is a variable (switched) charger in 10% increments from 3 to 30 amps. It is set to 21 amps as I have always used the 10-20% rate. All that happens with being a little lower than recommended, like Jaros, is it will take a bit longer to charge. Bottom line, charging an AGM at a too higher rate, will likely overheat the battery, especially in an Ozi Summer and shorten it's life. so why take the risk. I only have 200 W of solar and the highest charge rate I've monitored is a bit under 14 amps, so when off grid I'm right at the lower end of the 10-20% range. I'll add, Lithium is a whole different ball game. [/QUOTE]
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Outdoor & Recreation
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Charging Lithium Batteries Vs Charging AGM Batteries
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