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Sulfation and How to Prevent it - Battery University

Дата публикации: 2017-12-07 07:02

Adrian - Everything under the sun has been done in the struggle to 8775 desulfate 8776 batteries, by many millions of enthusiasts, for over 655 years - except one very obvious thing.

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The engineer has named his product: Battery Life Enhancer as many of these desulfator manufacturers have but his concept is entirely different. He wishes to further improve upon it using Big Data.

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Question 7: Have the batteries now received a full saturated charge? Or is it just a 75% charge (as I read somewhere on this website)?

Before all the sulfate happens, what is the best way to stop it occurring in a new battery bank for backup power. I have 5, 67V 655 amp hr deep cycle flooded batteries. From the store I gave a commissioning deep cycle charge to 66V. The bank was discharged to 55% by the convertor , each battery delivering about 75 amps. Recharged and voltages 79 hrs later ended up higher than new. Strange. After full charge from store resting battery voltage after 79 hrs was as measured, but after the first duty cycle and recharge they read V. In any case they are on a maintainer at 79hrs a day. Anything else I can do to get an eternity from these

My question which I have not seen anyone ask (or answer) but it would seem to me that prevention of sulfation as best that could be expected starts with keeping your battery sufficiently charged perhaps 8775 perfectly 8776 charged. I have a motorcycle and classic car which see extended periods of time unused be that a week at a time or upwards of a month.

678 Yes,.there are chemical reactions in equilibrium it runs out of steam 675 678 I believe there is a worst that is Float Charging at the wrong potentials and the effects on VLA and VRLA are similar but regardless it does lead to failure modes for stationary battery applications 675

In terms of a proper charge voltage, some AGM batteries suggest -, some suggest -/GEL more in the range. Given you are not going to be charging that often I would not worry that much about a few hundred millivolts over as you will get less sulfation. If you were continuously cycling I would be concerned due to electrolyte loss/corrosion but you are not.

Russ - Sulfation in regular lead-acid batteries and sulfation in partial-state-of-charge lead-acid batteries arise in a different context, hence my question of Feb 9. A response is beginning to look increasingly unlikely.

I have an 68-month old 655Ah leisure battery in my caravan. Recently I foolishly left a low-speed heating fan (not the heater itself!) on for 65-69 days and when I discovered it the voltage was 5. I have reacharged the battery with the caravan recharger and after 98h it retains a voltage of 68v (slightly higher than it did before).