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Reviving A Battery.


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Morning all.

 

After some recent problems with my car the battery was changed (along with starter) as a load test showed it was only holding 42% capacity.

 

If this can be revived somewhat I'll keep it as a spare for trips when I'm not on EHU.

 

I have a smart charger and an old float charger somewhere.

 

Is it beyond use? No point wasting time if it is.

Just beginning our adventure. 95% of my time on CT I use my phone. As a result correct spelling and grammer will be used sparingly. This is due to fat fingers. Please don't let it bother you.

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I know that golf cart batteries are often 'revived' by a commercial electric Battery Reviver. ............I used to use Bat-Aid tablets from Halfords in my early days of caravanning. ...saw some improvement.

 

geoff

Kia Sorento KX-1 CRDI 4WD towing an Elddis Affinity 530

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Bat Aid? I still use it.

 

Start from first principles. Is the battery dry? If it's 'sealed', rive the top off with a screwdriver and see if the tops of the plates are visible. If they are, top up with deionised water. Dose it with Bat Aid and leave it on a smart charger for a few days.

 

PS wear gloves and goggles when taking the top off a 'sealed' battery in case of acid splash.

hawkaye :beardy:

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Read the http://www. batteryfaq. org/ documents. But in my opinion nothing ventured with the smart charger (if it is up to it) . .. if the battery won't hold enough charge in the long term take it to a scrap yard for a few ££ cash.

2012 Bailey Pegasus 2 Rimini towed by 2019 Ford Galaxy Titanium X, 2.0 EcoBlue, 8 speed auto.

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Bat-aid is just an overpriced method of under dosing with EDTA IMHO - You can buy it cheaper and more effectively from this e-bay supplier --> http://www. ebay. co. uk/itm/EDTA-treating-sulphated-sulfated-batteries-/200970011363?pt=UK_Sound_Vision_Battery_Chargers&hash=item2ecabf02e3

Read the how-to :- http://www. courtiestown. co. uk/media/custom/upload/File-1334830161. pdf

 

Ideally you would add this to the acid in a warm diluted soution, charge the battery for a day or so and then literally wash out the cells and all the rubbish in the battery and then refill with fresh acid --> http://www. ebay. co. uk/itm/3-Litres-BATTERY-ELECTROLYTE-ACID-3-x-1-litre-/181266016942?pt=UK_Motorcycle_Parts&hash=item2a344beaae

 

Another option (Less aggressive) is to use a desulphator - these use the batteries own power and basically send a timed pulse back at a much higher voltage in order to break down the insulation on the plates ---> http://www. ebay. co. uk/itm/12V-High-Power-LV-Cut-off-Battery-Charger-Desulphator-/190798482886?pt=UK_Sound_Vision_Battery_Chargers&hash=item2c6c79cdc6

 

I use a lower powered one of these that I put on my various batteries for about 2 weeks every year.

This is a good website on the subject --> http://www. courtiestown. co. uk/ Although obviously they also sell products.

Edited by dreadly

An eye for an eye only ends up making the whole world blind.

Mahatma Gandhi

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Thanks for the replies guys.

Bat-aid is just an overpriced method of under dosing with EDTA IMHO - You can buy it cheaper and more effectively from this e-bay supplier --> http://www. ebay. co. uk/itm/EDTA-treating-sulphated-sulfated-batteries-/200970011363?pt=UK_Sound_Vision_Battery_Chargers&hash=item2ecabf02e3

Read the how-to :- http://www. courtiestown. co. uk/media/custom/upload/File-1334830161. pdf

 

Ideally you would add this to the acid in a warm diluted soution, charge the battery for a day or so and then literally wash out the cells and all the rubbish in the battery and then refill with fresh acid --> http://www. ebay. co. uk/itm/3-Litres-BATTERY-ELECTROLYTE-ACID-3-x-1-litre-/181266016942?pt=UK_Motorcycle_Parts&hash=item2a344beaae

 

Another option (Less aggressive) is to use a desulphator - these use the batteries own power and basically send a timed pulse back at a much higher voltage in order to break down the insulation on the plates ---> http://www. ebay. co. uk/itm/12V-High-Power-LV-Cut-off-Battery-Charger-Desulphator-/190798482886?pt=UK_Sound_Vision_Battery_Chargers&hash=item2c6c79cdc6

 

I use a lower powered one of these that I put on my various batteries for about 2 weeks every year.

This is a good website on the subject --> http://www. courtiestown. co. uk/ Although obviously they also sell products.

Dreadly, very interested in these desulphators. Do you just sit it inline with your cgarger?

Which did you buy and how have you found their effectiveness?

 

My only concern would be how they behave with a smart charger as they are supposed to sense the voltage.

Just beginning our adventure. 95% of my time on CT I use my phone. As a result correct spelling and grammer will be used sparingly. This is due to fat fingers. Please don't let it bother you.

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This also looks very interesting.

http://screwdecaf. cx/da_pimp. html

Just beginning our adventure. 95% of my time on CT I use my phone. As a result correct spelling and grammer will be used sparingly. This is due to fat fingers. Please don't let it bother you.

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This also looks very interesting.

http://screwdecaf. cx/da_pimp. html

There are a few people on various websites that claim you can also revive batteries by shocking them very quickly using an ARC welder.

 

I have used my deslphator with several makes of smart charger - Aldi. Lidle, Ring, Halfords, Ctek and another I cannot remember without issue although they say you should use a 'basic' charger and try to isolate the leads to the charger using ferrite coils if possible.

http://www. courtiestown. co. uk/index. php/battery-desulphators/kits/12v-basic-kit. html

You can also just leave the unit attached to a battery and remove it for re-charging ocassionally as they only draw a few milliamps.

An eye for an eye only ends up making the whole world blind.

Mahatma Gandhi

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The advantage of Batt-Aid is that it comes off the shelf and you only have to take the top of the case off. ..yes 'expensive' but ultra-convenient.

 

geoff

Kia Sorento KX-1 CRDI 4WD towing an Elddis Affinity 530

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When at work I had a pair of charging rails and a host of leads so could have batteries on charge for a very long time. Items of plant were often left for years between use and some times I missed them and the battery would sulphate. I would always give charging a try and some times would swap battery and forget about the one I had taken off until the next time another one came in and found batteries left on charge for months on end would often come up enough to be returned to service.

 

All batteries would be topped up once a week and charger was a little on the high side with voltage more like 30 volt instead of 28 volt and I would swap which battery was paired to which so one not accepting a charge may have had more like 18 volts across it.

 

Using to start a car or wagon often batteries were not good enough but powering two way radios they would work A1 and so without using any special equipment just leaving a battery on trickle charge for a long time topping up water as required they will often come back to life.

 

I was rather surprised at dry batteries most I got in UK were dry charged but in Algeria new batteries were supplied dry but not charged and it took a good week to charge a new battery after filling with acid. And this is a brand new battery not an old sulphated one. So before you throw it out you need it to have been on trickle charge for at least 2 months.

 

Very early did try the pills on dead batteries but although may get an extra month if it needs a pill then may as well scrap it. Do remember as a plant auto electricians I have dealt with 1000's of batteries and if I was working in UK I would just dump just not worth my time to get them running again but Algeria and Falklands was not as easy to get batteries so their I would try and yes simple being left on charge for a long time got many running again.

 

The water is important in the Falklands I had a de-ioniser to make my top up water and batteries were not lasting very long. I then build a still using a tea boiler on a 110 volt supply and started making distilled water and from that point the battery loss went down dramatically. It would seem the so called de-ioniser was no good with the peat in Falklands water. So do use distilled water not tap water.

 

As a foot note which I am sure you will laugh at some one was caught making alcohol with a still and after that they came around and found mine and smashed it up thinking I was doing the same. Cost them dear as they then had to replace it with proper still from UK.

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  • 3 weeks later...

Morning all.

 

After some recent problems with my car the battery was changed (along with starter) as a load test showed it was only holding 42% capacity.

 

If this can be revived somewhat I'll keep it as a spare for trips when I'm not on EHU.

 

I have a smart charger and an old float charger somewhere.

 

Is it beyond use? No point wasting time if it is.

Many modern smart battery chargers have a desulphation mode which is designed to revive heavily discharged batteries. .

 

you may find that you charger will not touch even attempt to charge the battery as if the voltage is less than 7V some chargers wont recognize it as a battery at all. .. quickest and cheapest method would be to connect your leisure battery to a vehicle and leave it ticking over for 15-20 mins this will raise the voltage across the battery enough for the charger to do a complete charge. .

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Many modern smart battery chargers have a desulphation mode which is designed to revive heavily discharged batteries. .

 

you may find that you charger will not touch even attempt to charge the battery as if the voltage is less than 7V some chargers wont recognize it as a battery at all. .. quickest and cheapest method would be to connect your leisure battery to a vehicle and leave it ticking over for 15-20 mins this will raise the voltage across the battery enough for the charger to do a complete charge. .

Hi caravantechnology.

The battery charges ok from my smart charger but doesn't keep its charge. Over a couple of nights to settle it seems to drop further than I would expect.

 

I don't believe my charger has a desulphate program. I'm considering buying one of those desulphators mentioned earlier, if they work with a smart charger that is.

Just beginning our adventure. 95% of my time on CT I use my phone. As a result correct spelling and grammer will be used sparingly. This is due to fat fingers. Please don't let it bother you.

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Hi caravantechnology.

The battery charges ok from my smart charger but doesn't keep its charge. Over a couple of nights to settle it seems to drop further than I would expect.

I don't believe my charger has a desulphate program. I'm considering buying one of those desulphators mentioned earlier, if they work with a smart charger that is.

The desulphator that I mentioned work with or without a charger. .. They use the battery's own power and step up the voltage and then pulse it back to the battery to remove/break down the lead sulphate. If you get the LV cutoff type, then they cut power to the unit when the battery is getting low to prevent damage if using it without a charger.

Or, you can just connect a charger and leave it for a month or so. ..

An eye for an eye only ends up making the whole world blind.

Mahatma Gandhi

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An hydrometer is a good way to check a battery, as well as checking the charge it will give you an indication of the battery's condition by the colour of the electrolyte.

 

Although its no good if you can't get into the battery :rolleyes:

Paul B

. .......Mondeo Estate & Elddis Avanté 505 (Tobago)

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An hydrometer is a good way to check a battery, as well as checking the charge it will give you an indication of the battery's condition by the colour of the electrolyte.

 

Although its no good if you can't get into the battery :rolleyes:

A Hydrometer test is a good way but sometimes can give false results also it to a local garage and get a drop test if both test comeback faulty then you know for sure :-)

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