apple support battery replacement 6s

7-stage chargers are suitable for most battery types including Calcium, Gel and AGM batteries. They may also help restore drained and sulphated batteries. · ...

apple support battery replacement 6s

how to apple support battery replacement 6s for

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Battery University

Know how to extend the life of a lead acid battery and what the limits are.

A battery leaves the manufacturing plant with characteristics that delivers optimal performance. Do not modify the physics of a good battery unless needed to revive a dying pack. Adding so-called “enhancement medicine” to a good battery may have negative side effects. Many services to improve the performance of lead acid batteries can be achieved with topping charge. (See: BU-403: Charging Lead Acid.)

Adding chemicals to the electrolyte of flooded lead acid batteries can dissolve the buildup of lead sulfate on the plates and improve the overall battery performance. This treatment has been in use since the 1950s (and perhaps longer) and provides a temporary performance boost for aging batteries. It’s a stopgap measure because in most cases the plates are already worn out through shedding. Chemical additives cannot replace the active material, nor can cracked plates, corroded connectors or damaged separators be restored with an outside remedy.

Elevated self-discharge is a common failure mode with older batteries. With the shedding of the active material to the bottom of the container, a conductive layer forms that gradually fills the allotted space in the sediment trap. The now conductive liquid may reach the plates, creating a soft short. The shedding also causes the internal resistance to increase, reducing current handling.

Extending the service life of an aging battery can be useful as additives are cheap, readily available and worth the experiment for a handyman. These salts may reduce the internal resistance to give a sulfated battery a few extra months of life. Suitable additives are magnesium sulfate (Epsom salt), caustic soda and EDTA (EDTA is a crystalline acid used in industry).

When using Epsom salt, follow these easy steps to treat most starter batteries. Heat about 250ml (8 fl oz or a cup) of distilled water to about 66ºC (150ºF), mix in as much Epson salt as the water can absorb (a few tablespoons) and stir until dissolved. Avoid using too much salt because heavy concentration increases corrosion of the lead plates and the internal connectors.

When pouring the warm solution into the battery, the electrolyte level will raise. Do not remove electrolyte, and only add as much additive as for 1 last update 2020/07/14 the battery can take. Be careful not to overfill. Do not place un-dissolved Epsom salt directly into the battery because the substance does not dissolve well. In place of Epsom salt, try adding a pinch of caustic soda. Charge the battery after service. The results are not instantaneous and it may take a month for the treatment to work. The outcome is not guaranteed.

Batteries have improved, and additive treatments may be most effective with older battery models, expanding their life by a few months until a replacement is on hand. Modern batteries already include additives that reduce sulfation and corrosion. Industrial users seldom rely on remedial additives to prolong battery life as the system becomes maintenance prone. Elevated self-discharge is a common failure mode with older batteries. With the shedding of the active material to the bottom of the container, a conductive layer forms that gradually fills the allotted space in the sediment trap. The now conductive liquid may reach the plates, creating a soft short. The shedding also causes the internal resistance to increase, reducing current handling.

Extending the service life of an aging battery can be useful as additives are cheap, readily available and worth the experiment for a handyman. These salts may reduce the internal resistance to give a sulfated battery a few extra months of life. Suitable additives are magnesium sulfate (Epsom salt), caustic soda and EDTA (EDTA is a crystalline acid used in industry).

When using Epsom salt, follow these easy steps to treat most starter batteries. Heat about 250ml (8 fl oz or a cup) of distilled water to about 66ºC (150ºF), mix in as much Epson salt as the water can absorb (a few tablespoons) and stir until dissolved. Avoid using too much salt because heavy concentration increases corrosion of the lead plates and the internal connectors.

When pouring the warm solution into the battery, the electrolyte level will raise. Do not remove electrolyte, and only add as much additive as the battery can take. Be careful not to overfill. Do not place un-dissolved Epsom salt directly into the battery because the substance does not dissolve well. In place of Epsom salt, try adding a pinch of caustic soda. Charge the battery after service. The results are not instantaneous and it may take a month for the treatment to work. The outcome is not guaranteed.

Batteries have improved, and additive treatments may be most effective with older battery models, expanding their life by a few months until a replacement is on hand. Modern batteries already include additives that reduce sulfation and corrosion. Industrial users seldom rely on remedial additives to prolong battery life as the system becomes maintenance prone.

Last updated 2019-07-23
 

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Comments (262)

On March 17, 2011 at 1:59am
ajay shah wrote:

why water loss during charging with invertor and please also suggest me by adding how can we stop water loss in battery.

On March 28, 2011 at 4:12pm
Brad wrote:

apple support battery replacement 6s 👍how to apple support battery replacement 6s for How much water is being mixed with the 10 heaping table spoons of Epson salt?
Is the acid to be removed from the battery 1st?

On April 19, 2011 at 1:05pm
fhhuber wrote:

Why water loss:  Evaporation.  Modern “sealed” automotive batteries have very low water loss rate.  We used to have to check the water level of a car battery at least every 3 months.  Today’s automotive batteries can go their entire appx 5 year useful life without needing water.

apple support battery replacement 6s 👍how to apple support battery replacement 6s for *****************

I have no experience putting additive in a modern automotive battery…  the batteries of 30 years ago it worked fine (and gave 2 weeks to 3 months extra battery life from a battery that typically survived 2 to 3 years).  The electrolyte chemistry is not the same in the newer batteries.

**************

Re the Epsom salts….

How much salt and how much water depends on battery size.  You will find it takes a lot of water to dissolve 10 tablespoons of epsom salt.  So this section does need editing.

Hopefully if you need to put for 1 last update 2020/07/14 additive in your battery you also need to add water… Its best to NOT remove electrolyte from the battery.  Its dangerous to mix acids with other chemicals.  Splashing can cause severe burns.Hopefully if you need to put additive in your battery you also need to add water… Its best to NOT remove electrolyte from the battery.  Its dangerous to mix acids with other chemicals.  Splashing can cause severe burns.

For best results use distilled water when mixing your own additive.  Just mix as much epsom salt in 1 cup of water as will dissolve.  Put equal amounts of this in each cell.

The benefit from these treatments is dissolving sulfate deposits (white crystals in the battery)  the sulfates cause internal shorting of the plates as well as the crystal expansion which can deform the battery.

Badly sulfated automotive batteries will have bulged ends.  At that point they don’t gain much from treatment.

($60 for a decent battery that for 1 last update 2020/07/14 lasts 5 years… why bother playing with this potentially dangerous practice?)($60 for a decent battery that lasts 5 years… why bother playing with this potentially dangerous practice?)

On October 11, 2011 at 2:33pm
grant wrote:

if you are adding epsom salt to battery cells and water, how do you put the solation in the cells with water, with out taking something out?

On November 17, 2011 at 4:05pm
John Fetter wrote:

apple support battery replacement 6s 👍how to apple support battery replacement 6s for Surely treating a worn out battery is like watering a dead plant or feeding a dead dog? The rational mind will look after the plant and the dog. Yet hordes of people who regard themselves as perfectly rational will still attempt to breathe life into their dead batteries !!!!!

On January 1, 2012 at 7:12pm
Bobo wrote:

At first I was optimistic but now a little less so. I have a Bosch battery that’s only 3 yrs. old and pretty much crashed and burned. I drained the original electrolyte to find a cloudy,discolored solution with no Specific Gravity. Filled all the cells with the Epsom Salt mixture and noticed that it,too, is very discolored in appearance. I wonder how many times this mixture needs to be PowerCycled in order to stabilize and hold a respectable voltage? I assume 4 or 5 times would program a new memory into the Battery. I’m beginning to believe that the Specific Gravity of a MgSO4 solution will never rival that of H2SO4. 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