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Old 11-13-2013, 09:21 AM   #1
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Question Battery Minder

Good morning,

I just purchased the Battery Minder model #12248 and letting the Minder do it's thing to a lawn mower battery first, ( better to harm it than my deep cell trailer battery ). I "qualified" the battery. After the "Rest" period, it held 12.9 volts and all but two cell held above 1.250 per the hydrometer. The weak cells were around 1.175. Got it all hooked up, set the amp range and battery type and all is well. It charged the battery for a short time the went into the maintenance mode perfectly. My question is, how long do I leave it before I know that the "desulphation" period is complete. I didn't see any comment reguarding that in the manual, but I tend to read too fast and miss alot of things
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Old 11-13-2013, 10:04 AM   #2
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I love the BatteryMinders ... it takes about 30 days to complete a full desulphation cycle ... You shouldn't have to remove it even after its complete. I have them on my truck, scooters, lawn tractor, RV, airplane, forklift, bobcat, and cars in storage. Been using them for about 10 years and only once had a battery dry out (should have checked the water more than once a year). I've even left them out in the weather connected the batteries in my old motorhome, they worked flawlessly for the five years I owned it.
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Old 11-14-2013, 08:43 AM   #3
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checca, thanks for the reply. I was a little confused by some posts that mentioned 3-4 days and some other's mentioned longer periods to complete the desulphation process. I'm guessing that once the electrolyte levels exceed the 1.250 level in ALL of the cells ( checking them periodically thru the maintenance process ) that would indicate complete desulphation and I would be ready to go on to my next battery. Would you agree? Thanks
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Old 11-14-2013, 09:49 AM   #4
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Quote:
Originally Posted by rskrbina View Post
checca, thanks for the reply. I was a little confused by some posts that mentioned 3-4 days and some other's mentioned longer periods to complete the desulphation process. I'm guessing that once the electrolyte levels exceed the 1.250 level in ALL of the cells ( checking them periodically thru the maintenance process ) that would indicate complete desulphation and I would be ready to go on to my next battery. Would you agree? Thanks
I would agree ... but i wouldn't touch the battery until 30 days has pasted ... i found they do a great job if left alone.
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Old 11-14-2013, 10:33 PM   #5
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Glad this came up, I was wondering myself. I know that when you first hook up the tender and it's in charging mode, the LED glows steady green. Then when it enters desulphation mode, it blinks green. So will it ever stop blinking green on its own, or do you just take it off after 30 days or so, figuring it's done?
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Old 11-14-2013, 11:47 PM   #6
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They just keep on blinking green.

This is a wonderful product. My motorcycle battery last 10 years using the battery minder off season. I never unplug them.
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Old 11-15-2013, 09:29 AM   #7
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Quote:
Originally Posted by Taranwanderer View Post
Glad this came up, I was wondering myself. I know that when you first hook up the tender and it's in charging mode, the LED glows steady green. Then when it enters desulphation mode, it blinks green. So will it ever stop blinking green on its own, or do you just take it off after 30 days or so, figuring it's done?

I figure the battery is at the best condition it will recover to after 30 days ... but i leave mine on all the time.
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