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Post by bjf on Dec 22, 2016 7:09:06 GMT -8
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Post by rabird on Dec 22, 2016 9:41:50 GMT -8
SLA or sealed lead acid is the choice for most AGMs.
14.4v charge/ 13.8v float temp corrected.
I would keep the monthly 2hr equal @ 14.6v, many AGM/SLA batt makers suggest equalization.
I use SLA setting for my small AGM/SLA battery with monthly 2 hr equal.
Seems the only way to avoid eqal is to use GEL setting
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Post by bjf on Dec 22, 2016 14:17:49 GMT -8
thanks for the info. i've heard bad things about equalizing AGM batteries. potential damage. what type of batteries are you using? which brand also?
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Post by bjf on Dec 22, 2016 14:35:42 GMT -8
This is from Trojan's website:
Deep-cycle AGM or gel batteries should NEVER be equalized.
W A R N I N G Do not equalize deep-cycle AGM or gel batteries.
Equalization involves overcharging the battery which is apparently very bad for AGM batteries.
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Post by bjf on Dec 22, 2016 17:13:39 GMT -8
For anyone that might view this in the future, I called Renogy and they recommended using the Gel setting - #2 on the MPPT.
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Post by rabird on Dec 23, 2016 5:03:23 GMT -8
the 14.6v for 2 hrs is more of a top charge vs an equalization. Lifeline has an detail AGM battery manual, they call it conditioning vs equal page 20 lifelinebatteries.com/wp-content/uploads/2015/12/manual.pdfThe 2hr 'boost' )absorption may not be long enough to FULLY charge your battery. FULLY charging is the key so ya don't loose capacity. Repeated 90 or 95% charging causes the batt to slowly loose capacity. 'The battery is fully charged when the current drops below 0.5% of the battery’s rated capacity (0.5A for a 100Ah battery). ' Fancier controllers can be programed for this! Note that Trojan suggests 14.1 - 14.7 v charging voltage. They would not call 14.6v for 2 hrs monthly equalization! my AGM is a small 7ah that gets discharged 15% a day and recharged by solar, 400+ cycles so far, 13+ monthly 2 hr 'equalization' @ 14.6 temp compensated. |
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Post by Ben on Aug 18, 2017 8:28:35 GMT -8
I called Trojan for my  -AGM battery and they suggest slightly different parameters than the default GEL settings. Since the GEL settings cannot be modified, I need to be in USER mode so I can adjust the voltage values to what Trojan suggested. Problem is I don't have a direct access (or couldn't find it maybe..) to disabling equalization mode. Would setting the equalization time to 0 be the same thing as disabling equalisation (like in "gel" mode ?) Thanks ! |
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Post by rabird on Aug 18, 2017 11:15:48 GMT -8
yes and setting eual set pt the same as boost.
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Post by Ben on Aug 19, 2017 18:56:36 GMT -8
Thanks for the info !
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Post by Jim/snoopwagon on Sept 8, 2017 12:34:40 GMT -8
you need the t-50 meter or m-5 meter check with your controller manufacturer for the right one it will give you access to make user parameters.
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Post by JIM/SNOOPWAGON on Sept 8, 2017 12:40:13 GMT -8
THE METER PLUGS INTO THE RS85 PLUG UNDER UNIT JUST PURCHASED ONE MYSELF GIVES THE ABILITY FOR HAVING CONTROLLER CLOSE TO BATTERY AND METER INSIDE FOR FULL CONTROL VERY COOL!
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-AGM battery and they suggest slightly different parameters than the default GEL settings.