Although i admire your efforts and time in making this video, adding Sulphuric Acid to any Battery pack will not repair the Battery pack in any capacity, and doing this will also not determine the initial cause of the low Voltage and Specific Gravity (Acid Reading) in the first place (external to what would usually only be a Sulphated or over-discharged Battery pack). If the Battery pack is not lasting, it either: 1. Needs a Charge 2. Needs electrolyte to cover the plates (filling with water) 3. Needs a repair / cell change to be carried out by a Battery technician 3. Needs specialised Battery Regeneration if sulphated (extremely low voltage) due to lack of use and maintenance 4. Needs replacing as the Battery pack is at the end of its 1500-1800 cycle service life Given the significant positive post growth evident on each 2v Cell in the video (external to the replaced cell which is cleaner and newer) where the internal positive plates in each cell rise due to internal plate shedding, which causes the positive post to rise and distort, potentially creating internal voltage shorts, it is almost a certainty that this Battery is nearing the end of its Service Life. You should only ever add Sulphuric Acid directly to a Battery if there has been a Battery spill or tip over. The "repair" method you have put forward will only give the user a false and short lasting Battery capacity reading with regards to both the SG (Specific Gravity Acid readings) and also the Voltage readings that are relative to the Battery pack itself, and is not in any way indicative of what is the standard chemical reaction between the Lead Plates and the Electrolyte/Acid mix in the Battery pack prior to "Re-acid" during each charge and discharge cycle, that ultimately determines the AH capacity output of the Battery pack upon usage. These factors are also acutely associated to the Battery packs Voltage and Specific Gravity (Acid) readings, which you are effectively corrupting by directly adding Sulphuric Acid to each 2v cell given that the correct amount of acid for each cell is already contained within the Battery pack - adding sulphuric acid under the above circumstances is like putting a small bandaid on a gaping wound !
Thanks for the info. I've got an old Yale forklift that's been sitting for a long time. I'm working on slowing bringing the battery voltage up. I started at 7v and now I'm at 31v with the charger disconnected. Lot's more charging and desulfating to go. After I've run it through a few cycles I'll probably have to adjust the electrolyte mixture a bit. It has a watering system but it looks like it's been overflowed before, so that'll probably get replaced.
@@graphicsequip7863 I didn't add any acid. I got the battery working but unfortunately one of the cells developed a short. It took about a week to charge with the charger I was using.
Thanks for awesome video. I did everything you said after watching your video. All the reading are good but after couple minutes of use forklift bugging and start cutting power and dies. That I put the 3x12volts car battery too bring it back to life and it works just fine with car batteries. What do you think the problem might be? Thanks in advance
Hey, I have a question. What would happen if I use common lithium batteries like 100amp 12 V or a higher voltage battery to make the voltage that was required. What is unique about forklift lithium batteries that are different from the ones we can buy off Amazon? What are the potential hazards of using the common large lithium battery array?
What purity of sulfuric acid do you recommend using. Obviously not fuming but are you using battery grade 30 to 45 percent sulfuric acid or something stronger?
Like your video. Where to buy the sulfuric acids ? Liquid vs powered and difference ? I added water already. Can I add acids after or should i remove a little bit of the water ? Thanks so much.
Call battery shops in your area and ask them if they sell battery acid "sulfuric acid" or if anyone else sells in the area. I purchased a 5 gallon jug for $30 US dollars
Daaaaaamn . . . You actually pulled out a 2700 pound battery with your hands? That looks like 18-125-17 battery... Man, my back hurts just by watching you...
i would only add more solution of sulfuric acid if the battery have gone through a 24h or 48h desulfation and the specific gravity readings were yet as low as 1225. That would indicate that the battery possible fell down and lost a little of its solution (which usually is the case with those tall and slim 48 V forklifty batteries) or that it is too old (deep cycle batteries here usually last up to 5 years, if well cared and kept).
No it doesn't. If you think you have a blown fuse in yours it will be one the links is broken. Also one of the posts could be cracked under the plastic or under a link
@@siduolocin I'm in the states. I found lab grade sulfuric acid but I'll continue to shop around and see if I can find some that's a little more affordable. How much acid did you need for that battery?
They are called CELLS not battery All the cells together make up a battery.... Batteries don't last 20 years or more. Most forklift batteries last 5 to 10 years. You do get the odd one every now and then that may reach 20 years but its well and truly stuffed by then. 99% are pretty stuffed even at 10 years. What limits capacity on an old battery is sulfation that grows on the lead plates. This is the main failure mode and adding sulfuric acid wont fix that. It might raise the terminal voltage a bit but wont give any extra capacity. That battery like most forklift batteries is designed to give 8 hours of operation not 4. Your video might give a few tight arseses that warm fuzzy feeling inside thinking they might save $8K (actually $5.5K) on that battery but the truth is it will save them nothing and then they have to buy a battery for $6k
Although i admire your efforts and time in making this video, adding Sulphuric Acid to any Battery pack will not repair the Battery pack in any capacity, and doing this will also not determine the initial cause of the low Voltage and Specific Gravity (Acid Reading) in the first place (external to what would usually only be a Sulphated or over-discharged Battery pack).
If the Battery pack is not lasting, it either:
1. Needs a Charge
2. Needs electrolyte to cover the plates (filling with water)
3. Needs a repair / cell change to be carried out by a Battery technician
3. Needs specialised Battery Regeneration if sulphated (extremely low voltage) due to lack of use and maintenance
4. Needs replacing as the Battery pack is at the end of its 1500-1800 cycle service life
Given the significant positive post growth evident on each 2v Cell in the video (external to the replaced cell which is cleaner and newer) where the internal positive plates in each cell rise due to internal plate shedding, which causes the positive post to rise and distort, potentially creating internal voltage shorts, it is almost a certainty that this Battery is nearing the end of its Service Life.
You should only ever add Sulphuric Acid directly to a Battery if there has been a Battery spill or tip over.
The "repair" method you have put forward will only give the user a false and short lasting Battery capacity reading with regards to both the SG (Specific Gravity Acid readings) and also the Voltage readings that are relative to the Battery pack itself, and is not in any way indicative of what is the standard chemical reaction between the Lead Plates and the Electrolyte/Acid mix in the Battery pack prior to "Re-acid" during each charge and discharge cycle, that ultimately determines the AH capacity output of the Battery pack upon usage. These factors are also acutely associated to the Battery packs Voltage and Specific Gravity (Acid) readings, which you are effectively corrupting by directly adding Sulphuric Acid to each 2v cell given that the correct amount of acid for each cell is already contained within the Battery pack - adding sulphuric acid under the above circumstances is like putting a small bandaid on a gaping wound !
Thanks for the info. I've got an old Yale forklift that's been sitting for a long time. I'm working on slowing bringing the battery voltage up. I started at 7v and now I'm at 31v with the charger disconnected. Lot's more charging and desulfating to go. After I've run it through a few cycles I'll probably have to adjust the electrolyte mixture a bit. It has a watering system but it looks like it's been overflowed before, so that'll probably get replaced.
@@graphicsequip7863 I didn't add any acid. I got the battery working but unfortunately one of the cells developed a short. It took about a week to charge with the charger I was using.
Thanks for awesome video. I did everything you said after watching your video. All the reading are good but after couple minutes of use forklift bugging and start cutting power and dies. That I put the 3x12volts car battery too bring it back to life and it works just fine with car batteries. What do you think the problem might be?
Thanks in advance
Hey, I have a question. What would happen if I use common lithium batteries like 100amp 12 V or a higher voltage battery to make the voltage that was required.
What is unique about forklift lithium batteries that are different from the ones we can buy off Amazon?
What are the potential hazards of using the common large lithium battery array?
What purity of sulfuric acid do you recommend using. Obviously not fuming but are you using battery grade 30 to 45 percent sulfuric acid or something stronger?
Like your video. Where to buy the sulfuric acids ? Liquid vs powered and difference ?
I added water already. Can I add acids after or should i remove a little bit of the water ? Thanks so much.
What do you use to remove electrolyte to add more acid if the the cell is to full?
Awesome video. I appreciate you streamlining the process as well as the specific instructions at each step. Thank you!
How strong are your sulfuric acid soluton??.. here in Denmark I can get 14%, 20% and 95%
Call battery shops in your area and ask them if they sell battery acid "sulfuric acid" or if anyone else sells in the area. I purchased a 5 gallon jug for $30 US dollars
Very good information, great guy
what concentration of sulfuric acid did you use?
Can you do the welder technique on batteries like this? Attach a welder for 15 mins on?
Daaaaaamn . . . You actually pulled out a 2700 pound battery with your hands? That looks like 18-125-17 battery... Man, my back hurts just by watching you...
i would only add more solution of sulfuric acid if the battery have gone through a 24h or 48h desulfation and the specific gravity readings were yet as low as 1225. That would indicate that the battery possible fell down and lost a little of its solution (which usually is the case with those tall and slim 48 V forklifty batteries) or that it is too old (deep cycle batteries here usually last up to 5 years, if well cared and kept).
Does that battery come with an internal fuse? Thank you 🤓
No it doesn't. If you think you have a blown fuse in yours it will be one the links is broken. Also one of the posts could be cracked under the plastic or under a link
@@microwave-vh2uc thank you. Have a battery powered pallet jack with the battery not charging. Thank you 🤓
Where can I buy the acid
If you have LFP battery forklift? Or who knows where I can get it from?
Hi I want help
Where did you get the sulfuric acid?
you from australia? try www.netra.com.au
@@siduolocin I'm in the states. I found lab grade sulfuric acid but I'll continue to shop around and see if I can find some that's a little more affordable. How much acid did you need for that battery?
@@siduolocin hey mate do you know what brand and concentrate you used and I guess where to purchase in Australia?
Saludos de marruecos
You doing that while it's charging over 232 volts when adding the sulfuric acid There's a rule of thumb to acid adjusting a lead acid battey
When mixing electrolyte, always pour acid into
water - never pour water into acid. Pouring water into acid will cause a dangerous chemical action.
They are called CELLS not battery All the cells together make up a battery.... Batteries don't last 20 years or more. Most forklift batteries last 5 to 10 years. You do get the odd one every now and then that may reach 20 years but its well and truly stuffed by then. 99% are pretty stuffed even at 10 years. What limits capacity on an old battery is sulfation that grows on the lead plates. This is the main failure mode and adding sulfuric acid wont fix that. It might raise the terminal voltage a bit but wont give any extra capacity. That battery like most forklift batteries is designed to give 8 hours of operation not 4. Your video might give a few tight arseses that warm fuzzy feeling inside thinking they might save $8K (actually $5.5K) on that battery but the truth is it will save them nothing and then they have to buy a battery for $6k
Believe it or not I have a 42 year old Nissan 1.5 ton forklift that original battery’s are only recently gone