Lead acid battery desulfator. A desulfator causes the built-up sulfate crystals in the lead-acid battery to fragmentize. Lead acid battery desulfator

 
A desulfator causes the built-up sulfate crystals in the lead-acid battery to fragmentizeLead acid battery desulfator 3 out of 5 stars 600 2 offers from $72

They like some "jogging". Location. 3. Let’s explore some of these effective techniques: 1. Terry2) With the desulphator able to deliver around 10Amps average current could I be overcharging the battery via the pulses (9. Take your time. 147 D Woodbury Rd. Many of those products out there that claim. 6 volt lead-acid battery will have an internal resistance of about 0. Using a Desulfator: One of the simplest and most commonly used methods is to use a desulfator. Those methods include the use of a trickle charger, electronic desulfator, chemical desulfator, or a homemade epsom salt mixture. While not shown at the $18 price, here is the charger's description: Harbor Freight 6/12 volt Battery Charger. Most battery chargers tend to be too complicated or expensive, but this is the exact opposite. Lead Acid Battery Desulfator circuit has been duplicated by many around the world. THESE ARE ONLY DESULFATORS AND NOT CHARGERS. 0033 Ohm. The desulfator should be installed as close as possible to the battery terminals. . $17. $129. The batteries treated with Thermoil lasted on average 13 and one half years. When your car’s alternator recharges the battery the process works in reverse, and the lead sulfate is reconverted into lead and sulfuric acid through a process called gassing (in which. Get it as soon as Wednesday, Sep 13. The. 45 Was: $27. EDTA removes the lead sulfate from use, so is not desirable. During this process, current passes through the sulfate buildup. 4 out of 5 stars 1,055The GENIUS5 is a 6-volt and 12-volt battery charger, battery maintainer, and battery desulfator rated at 5-amps for lead-acid automotive, marine, and deep-cycle batteries, including flooded, gel, AGM, and maintenance-free, plus lithium-ion batteries. 2KHz and 6% duty cycle. #2. 0 F(Ah) −1. or Best Offer. Mosaic. 1. Battery desulfators can be used on all types of lead acid batteries including AGM and Gel. Brand New. C. 8V dropped to a few microAmps, even though the charger. For my 33Ah battery that means 33ma trickle current. NOTIFICATIONS. Car Battery Charger, 12V 6A Smart Battery Trickle Charger Automotive 12V Battery Maintainer Desulfator with Temperature Compensation for Car Truck Motorcycle Lawn Mower Marine Lead Acid Batteries $25. The lead plate reacts with the electrolyte (sulfuric acid) and leaves lead sulfate (PbSO 4), and a free electron. Keeps PbO2 spongy and soft. A place where builders and u. It works by charging your car battery and ensuring the voltage is at least 12. Success rate is better than 60%. Sulfation was the predominant aging mechanism in the weakest cell but water loss reduced the capacity of several other cells. Remove the covers from the cells. Hard sulfation is typically permanent battery damage. - The 40volts DC from above is feed to a capacitor bank through a. Connect the load tester to the positive terminal of the battery first, then the negative terminal. Return this item for free. 3. S. 15V one day after removing it from the charger. Excellent for use on auto batteries, golf cart batteries such as the Trojan, motorcycles, lawn equipment, heavy machinery and more . Charger is designed to be used for rechargingA one ohm resistor is good for a small battery and . A desulfator or battery reconditioner is defined as a device that restores the capacity of a lead-acid battery. Desulfation means fixing or reversing sulfation. Odyssey, Polaris, Yuasa & Other High Performance Specialty 12 Volt Sealed AGM Lead-Acid Batteries . . So you can leave the charger connected to the battery indefinitely. Lead Acid Battery Desulfator 4 of 5 11/26/2005 11:51 AM. $18. 9 out of 5 stars 8. Be warned tho, it contains lethal voltages. During discharge, both plates convert to lead sulfate (PbSOWhen this vibrational state is occurring, there are uncountable Lead-Acid Battery Desulfator Parts List collisions between the ions in the electrolyte and the battery plates, Item Component Description Cost (US$) as the back and forth vibration Q1 IRF9Z34 P channel MOSFET 1. Customer Rating: 4. FOXSUR Universal charger, It is a car charger with 6 charging modes, with display, 2-in-1 lithium battery and lead-acid battery. Automatic Motorcycle Battery Charger for Truck Lawn Mower RV Boat Lead-Acid Battery. After that, disconnect batteries from chargers and allow them to rest for 10 minutes. The one I have is a feature of my battery charger. 3. Willen. Usually the voltage reads somewhere over 13v once the battery has settled, one though would only read 12. $49. Share. 1:22 . Brand New. AUIRF1404Z is rotated to match the pins. This primes the battery to charge deeper, perform better, and last 3x. "Description of "Direct Drive High Power Desulfator". 12 Volts Lead Acid Battery Desulfator Assembled Kit Alligator Clip With REVERSE POL PROTECTION . 4–1. Try again!It is no secret that sulfation is the #1 killer of lead acid based batteries and that desulfators using Pulse Technology make an IMPACT. Typical: $27. FREE delivery Sat,. XTREME CHARGE XC100-P Desulfator & Charger. The concept of desulfation is a little mysterious. Free shipping. FREE Shipping. The 3 basic components of lead-acid batteries are all 100% recyclable: Lead and lead products: 99% of lead is recovered during the smelting process and is recycled or sold as a commodity. 3. Opens in a new window or tab. If the battery is charged often and well, then the components break up, the lead (Pb) rejoins the lead plate, and the sulfate (SO4) becomes part of the sulphuric acid again. 35 to 40 volts means an open cell or rain water for electrolyte. Most lead acid battery desulfators out there use a flyback design with inductors. 6V/29. Logged. It is my opinion that the possibility that all or most of the sulfur crystals formed on the plates of a lead acid battery are the same size (or resonance) is very low. 1; 5: 1; 5: 3; 7; Free returns. 12 Volt Desulfation & Battery Restoration. 4 volts. Nov 17, 2011 #1. They want to connect a box "A" to terminal "B" and have their. Output Pulses: 22-28 kHz, 250mA peak amplitude. connected it makes a buzzing sound, I have seen up to 50 volts being. That is about how long it took the circuit to self-destruct and spew fire. 9 out of 5 stars 215. With frequent use of the battery, not all lead sulfate will be converted, and they soon accumulate on the plates. Share. 1 offer from $19. USPTO: US Pat 5,063,341 or 2. Many a lead acid battery have fallen victim to pre-mature death by sulfation, but this process can be slowed, reversed and mostly prevented simply by utilizing the proper tools. continues. Third is a 100 microsecond pulse that shorts the battery (180 amps?) to remove dendrites. From $22. Desulfators work for me. Works. My Dynasty UPS12-310 high output battery is spec'd at 0. $2599. 97 $ 59. 95. 64. For all large lead acid batteries/packs from 12 to 120 volts up to 3,000 Ah. Identify the bad cells :-. $69. 30,129. FORUMS. Availability: BatteryMINDer® 12106 is a 2 stage Charger-Maintainer-Desufator that extends performance and life of 6 Volt lead acid batteries including flooded (filler cap, maintenance-free, valve regulated lead-acid [VRLA], sealed lead-acid [SLA]), starter, deep cycle and hybrid. Most regular car batteries are lead acid, including flooded lead acid (the older kind with liquid acid solution), sealed gel cel, and sealed AGM (absorbed glass mat). In the formatting phase, the plates are in a sponge-like condition surrounded by liquid electrolyte. The build up then drops into the battery acid and dissolves. I have two desulfators. Most are hooked up to the battery itself and work from the battery's own power, but a charger is also required since the desulfator will eventually bring the battery down. ---Jack in CA I have a friend that is an electronics genius and he made me a desulfator. FREE Returns . A major life-limiting problem with lead-acid batteries is that when discharged (partially or otherwise) the resulting lead-sulfate slowly transforms into an insoluble form that eventually disables the battery. This video prov. And finally, a 5 second period to measure the battery voltage. . You can pick up cheap desulfators for probably $20+ online or an auto parts store. at >) about 'Desulfator: Pulsed charger- Lead acid Batterie in Photovoltaik. However, this method of desulfation takes three. These are smart devices that automatically detect the sulfation rate in the battery and remove it by choosing the best suitable desulfation profile for the battery. The trickle current should only be 1/500 to 1/1000 of the amp hour rating of the battery. You should also ensure: It is not deprived of full charges. These devices use high-frequency pulses to break down the sulfate crystals on the battery plates. LIVE ORDER & TECH LINES: 7:30 AM TO 4:00 PM PACIFIC TIME M – F NO SALES TAX Toll Free Order Line Only: (877) 405-0978 Monday – Friday Tech & Order Line: (541) 582-4629 Monday – Friday ORDER ONLINE ANYTIME Email Tech Questions: info@chargingchargers. Ed. Charging of that 6. 01 (3 new offers)Best Budget battery desulfator Deals Online. While this does work, the inductor can only hold so much energy each pulse. PulseTech 390PT Digital Battery Conductance Analyzer 741X390. battery desulfator 12v. Put some water in one cell and move to the next. Electrolyte: 100% of sulphuric acid sold is recovered and is recycled, sold as. 100% = 12. $2599. A lead-acid battery consists of two lead plates immersed in an electrolyte solution of sulfuric acid. com Fresh, New Stock. Most lead acid battery desulfators out there use a flyback design with inductors. The must-have. OK. For a deep-cycle battery, it will take a bit longer, typically between 48 and 72 hours. Here is a quick video that will show you what the lead plates look like in a typical sulfated lead acid battery and in a desulfated battery. BatteryMINDer 128CEC1: 12 Volt-2/4/8 AMP Battery Charger, Battery Maintainer, and Battery Desulfator; 9 2. group of selectable resistors. Lead Acid Battery Desulfator - V is for Voltage electric vehicle forum EN English Deutsch Français Español Português Italiano Român Nederlands Latina Dansk Svenska Norsk Magyar Bahasa Indonesia Türkçe Suomi Latvian Lithuanian český русский български العربية UnknownNOCO G7200, G15000 and G26000 chargers all feature our advanced 16V Repair Mode technology. Sponsored. Measure across D4 with the positive lead on the cathode. New Advanced Technology: dissolving sulfates WITHOUT DAMAGING THE BATTERY PLATES. 400+ bought in past. At around $40, the BatteryMinder series is one of the best, and includes a built-in preventative desulfation function. Battery damage does not occur during this process. 6V 12V Car Battery Charger Lead Acid Battery Charger for All AGM,Gel,VRLA Batteries with Safety Approval CE CUL (12V) 3. For solar battery banks, golf buggies, fork-trucks, RV’s, cars and trucks. 0 5. Another way to calculate peak current is: (Vpeak - Vbat) / battery. 0119) This means that the calculated peak current with no losses should be 46 amps. This can be done by applying a high-frequency current to the battery, or by using a special desulfation charger. Battery Desulfator - SgtWookie's version of Alastair Couper design: Power Electronics: 11: Oct 18, 2018: Well-known 555 desulfator : correct duty cycle: Digital Design: 25: Jul 27, 2017: 12 Volt Lead Acid Battery Desulfator - New: Power Electronics: 7: Jan 1, 2016: R: Desulfator mod for single cell 2V: General Electronics Chat: 32: May 27, 2015: JGood new my first battery is in good enough shape to stat a car now. 4. 5V. You can also use a. In this study, a similar application to them. You should also ensure: It is not deprived of full charges. Enjoy precision. 5amp, D1 1N5819 . It is compatible with all types of 12 V lead batteries, making it an ideal option for boats, trolling motor, lawnmower, cars, and watercraft. A controlled-pressure charging. 022 µF Disk ceramic 0. 1. Ok. The tremendous rise in the number of vehicles is likely to produce increased quantities of Lead Battery Scrap in future. Battery desulfator The cheapest and easiest desulfator is you. $136. and bridge rectifier. Connect multimeter to your battery and check voltage. Automatically detects sulfation and acid stratification. As an experiment, I made a lead acid battery desulfator. One rather intrusive method is to replace the sulfuric acid electrolyte with a greatly. Connect your desulfation charger to the battery and select the recon or repair mode. Using a Desulfator: One of the simplest and most. The current method directly recovers the discarded ULABs into the reusable batteries. There are patents on the use of high-frequency pulse desulfators to desulfate lead-acid batteries. MESSAGES. 04. Lead Acid Battery Desulfation > All > Pulse Charging and Desulfation > Simple Direct Drive Desulfator PCB thread . Lead Acid Battery Desulfation > All > Desulfator - 555 based and all pulse output stages > German Desulfator Details. It has an indefinite shelf-life and is unconditionally guaranteed to restore, improve and prolong the life of mechanically sound lead-acid batteries regardless of make, age, or size. 0000 help?Lead Acid Battery Desulfator 12V 24V 36V 48V Battery Regenerator 2A Auto Pulse Desulfator. Kapibara | August 4, 2019 Updated . hi all, i build this desulfator and charger as u will see in the attachment if it comes out. Hi I am currently building a lead-acid battery desulfator. 73 volts. There are patents on the use of high-frequency pulse desulfators to desulfate lead-acid batteries. This BLS-48B is designed for 48 volt battery systems will ship for FREE!. 77 C1 30 µF, 16 V Electrolytic 0. 31. 4. 7 Top 12 Best battery Desulfator On the market Reviewd; 8 1. #1. What is Sulphation in Lead Acid Batteries Sulphation is a process where the sulfuric acid present inside lead acid. If the battery has a high resistance, that energy won’t be absorbed very well and will show up as a very high voltage spike on an oscilloscope. 6 volt lead-acid battery will have an internal resistance of about 0. 2 Comments. The Battery Life Saver electronic desulfator dissolves the lead sulfate crystals. E-FAST Car Battery Chargers /6A Full Automatic Battery Chargers Maintainer 3-Stage Portable Trickle Chargers Battery Desulfator for Car Motorcycle Batteries. Battery Life Savers BLS-36/48 Multi F BATBLS-3648-M-F Battery Life Savers BLS-36/48 Multi F for 36/48V Industrial. By Phillip Torrone. Free shipping. 27,295. In this work, the effect of inverse charge on the reactivation of sulfated active materials has been investigated. 9 is a standart one given in many chargers. 99 Get it as soon as Thursday, Nov 30Based on dozens of customer reviews and ratings, the followings are the top 10 best-selling Battery Desulfators: #. Lead Acid Battery Desulfation. YSDQ 12V 24V Car Battery Chargers, Portable Trickle Chargers Battery Desulfator Full Automatic Smart Battery Chargers Maintainer, for Car Motorcycle, Lithium, Lead-Acid Boat £37. 95. - 120-volt A. I am thinking of adding a frequency sweeper to the circuit so that it can scan, detect and lock-in to the resonant frequency automatically. To increase internal-resistance measurement accuracy. My roomba battery, which I purchased used, could only hold a charge for a few minutes. 99. I have a plastic and lead blob as a result of thermal runaway to prove it. 99 $ 10. It seems stuck at length information is the easy way to give the site links I found only the. Epsom salt in lead-acid battery. $22. Wehmeyer says aspirin is acetylsalicylic acid, which eventually breaks down into acetic acid. I have a plastic and lead blob as a result of thermal runaway to prove it. This paper presents a method of sulfate reduction of lead-acid batteries using high-frequency pulses. Anyone with soldering skills can build the unit. Here is the 12 volt desulfator that I have built using the circuit schematic below. [ SIDE NOTE Do not use a pulsing charger on a lithium battery. The XTREME Charge XC100-P  Battery Charger & Desulfator is the best charger for a 12-volt battery. Newbie9. A kick back desulfator can only put out 5 to 10 amps and then it's done. The first step is to pulse the battery for 15 seconds using a Charged-Induced-Pulse described by desufonator2. Ran fine in my truck for two. It is a method where the device generates pulses with high-frequency and use them to zap the sulfate buildups on the battery plates. $ 30683. 99 In Stock. 9 volts were enough. Also, many products available in the market worldwide claim to use this techniqueIn the final analysis, you can think about battery desulfation simply as the process of renewing sulfated areas of a lead-acid battery. Re: Lead Acid Battery Desulfators 01/04/2015 10:08 PM I've also played around with trying to desulfate batteries and I would say that maybe 1 in 10 can be reasonably rejuvenated. If you have a 0. PP-12-L Desulfator. Within 90 days. 0 out of 5 stars 80. Marketed by Battery Solutions & Innovations, Inc. A Summary: Battery Reconditioning. To start with, take a look at this short note on lead acid battery chemistry and the sulfation process. A fully charged 12. Rational Design: LED light indicates when pulse working. Marketed by Battery Solutions & Innovations, Inc. 75-Amp Car Battery Charger, 6V and 12V Smart Fully Automatic Battery Charger Maintainer, Trickle Charger, Battery Desulfator for Car, Lawn Mower, Motorcycle, Boat, Marine Lead Acid Batteries 4. Free shipping. I bought 7 years ago 16 deep charging lead sealed lead acid batteries for my electric boat I had built. 79*3. Smart Battery Life Extender, Reduces Evaporation. and bridge rectifier. +18622174908 [email protected] Desulfator Conditioners Quadlink (Charger Multipliers). alton-moore. The AGM batteries can be desulfated using a compatible battery charger or desulfator. It is not undercharged. fatadi-34 (90) 95%. System', on Wed, 11 Feb 2004: The problem seems to be sulfation. 3 Reviews Add Your Review . line current is converted to approximately 40 volts D. Use a standard light dimmer and 1uF or so mains rated cap in series to a bridge rectifier. If improvement is seen, continue until battery voltage reaches full capacity level or no further increase is seen. This item SUHU 4 Amp Battery Charger 12 Volt, 6V/12V Car Battery Maintainer Trickle Charger and Battery Desulfator with Temperature Compensation for Lead-Acid (AGM/EFB) and Deep Cycle Batteries GOOLOO S4 4 Amp Car Battery Charger Automotive, 6V/2A 12V/4A Smart Trickle Charger Maintainer with Supply Mode,. Check it Out 2. Lao . mohouta73 (0) 0%. Compared to modern rechargeable batteries, lead–acid batteries have relatively low energy density. utipower Auto Pulse 400AH Lead Acid Battery Desulfator Revive Battery Regenerator for Cars, Motorcycle, ATVs . Huntington, NY 11743. 66V/cell (15 and 16V on a 12V mono block) for about 24 hours. Hydrometers, load testers, chargers, drill bit sets, battery post. When a lead acid battery discharges, acid is absorbed into the lead plates which is returned to the electrolyte through recharging. With its float charger and battery desulfator, it can keep your car battery in top condition and extend its life. These lead acid battery desulfators utilize frequency based pulsing to rejuvenate and restore old tired batteries and as preventative measures. It is this rhythmic beating U1 LM555CN Timer IC 0. One of the major disadvantages of lead-acid batteries is sulfation, which decreases batteries' efficiency. Look up the "Direct Drive" thread on the Lead Acid Battery Desulfator. Acetic acid attacks the positive lead. 6. 97. Jul 27, 2017. If the charge cycle does not allow this, give the battery a fully saturated charge once every few weeks. Text is available under the Creative Commons. 75-Amp Car Battery Charger, 6V and 12V Smart Fully Automatic Battery Charger Maintainer, Trickle Charger, Battery Desulfator for Car, Lawn Mower, Motorcycle, Boat, Marine Lead Acid Batteries 4. Related Tags. In this article, you’ll learn the most common. The lead reacts with the sulfuric acid inside the electrolyte to form lead sulfate. A fully charged 12. SP-3 3 Watt Panel. )the float at 13. 4. 2 volts it produced 30 amp pulses into about . 2. Add to Cart . Joined Nov 13, 2015. (A charged battery is shown, where no lead-sulfate is present. Over time, sulfate deposits build up on the plates within a lead acid battery. Maintain up to 2 batteries at a. My Dynasty UPS12-310 high output battery is spec'd at 0. 5 amps even if connected to a 7Ah battery. All of the items below are lead acid battery desulfator units designed to work with both flooded and AGM batteries - please note that these units are NOT for use on lithium batteries. 6 volt 2 amp and 6 volt 1 amp: 0. (Battery voltage after charge) - (battery voltage after 1ohm resistor connected connected for around 5 seconds or once battery looks stable) * 1. for the terminals, I used two big copper wires, to minimize the resistance. Nehmo despaired about desulfators that allegedly do not work being sold by Battrecon to people who want to go into the battery restoration. Plug 'n Run feature means "no buttons to push. Lead Acid Battery Scrap is the most commonly found Lead scrap. 5 volts. Our selection of on-board battery desulfators work on lead acid batteries with voltages ranging from 12 - 156 DC volts. 00. 60% = 12. Firstly, we need to take approximately 200-250 grams of Epsom salts. If powered by 120vac it can get up. Hello, I have built classic desulfator 12v circuit with external power source and have very old 12v car acid battery with easy each cell access (see picture) for testing and recovery. For a standard lead-acid battery, it will typically take between 24 and 48 hours for the desulfator to start working. This is an exce. Also a. The desulfator should be installed as close as possible to the battery terminals. Determine the internalThe Battery Extra restores and recovers battery performance in lead acid batteries. The lead–acid battery is a type of rechargeable battery first invented in 1859 by French physicist Gaston Planté. If at all possible, operate at moderate temperature and avoid deep discharges; charge as often as you can (See BU-403: Charging Lead Acid) 12V Lead Acid Battery Desulfator SLA AGM Battery Life Extender with Shell Product Parameters: INPUT VOLTAGE: 12Vdc OUTPUT VOLTAGE :30V (pk-pk) RATED CURRENT:40mA Average FREQUENCY RANGE :1. Gently shake the battery to ensure that the Epsom salt is well distributed. I probably do not have the right coils (got these from my junk box) , it still works , when its. Open up all battery caps. It works quite well. Free shipping. 99 $ 219 . Introducing the all-new GENIUS10, one of the most powerful, highest-performing, energy-efficient, and compact chargers yet. 25 ohms is good for a large battery. Discover numerous 12 volt sealed lead acid batteries at Battery Mart. Once the voltage reaches above 12 V, you can remove the charger and plug the desulfator to start desulfating operation. Lead acid battery desulfators (pulsers) recover old batteries and extend the life of new ones. $98. Monitor the battery for excessive heat, loss of battery fluids and any deformation of the battery. Each lead acid battery has a total frequency of around 2 to 6 megahertz. 75-Amp Car Battery Charger, 6V and 12V Smart Fully Automatic Battery Charger Maintainer, Trickle Charger, Battery Desulfator for Car, Lawn Mower, Motorcycle, Boat, Marine Lead Acid Batteries Car Battery Charger Automatic, 6/8/12/14/16/24V Adjustable Voltage Battery Charger 0-10A, Battery Maintainer, Smart Trickle Charger for Golf Cart, Car. Now, add Epsom salt to the hot water and stir it until it has dissolved into a solution. In case your battery is completely flat, to run this circuit, you'll need to connect a little 12 Volt power. If your looking for some guidance on finding the right battery desulfator for your needs please don't hesitate to either give us a call toll-free at 1-877-775. Rejuvenation can last for years, but is not infinitely repeatable. The Pulse Tech 12v On-Board Desulfator Power Pulse is designed to ensure maximum battery performance on single 12-volt lead-acid batteries. $49. In Stock. July 5, 2009. When using Epsom salt, follow these easy steps to treat most starter batteries. The first method uses PWM pulses from a 555 PWM circuit, the second method implements an ordinary bridge rectifier for implementing a 100 Hz frequency based desulfation, the. This sulfation will gradually build and limit the battery's ability to charge, store, and release energy. So I tried the above described method. Sulfation, the number one cause of premature battery failures, can be safely reversed using an electronic device that produces high frequency electronic pulses called a desulfator. Charging Process of a Lead Acid Battery Lead acid battery have anode made of lead (Pb) and the cathode made from lead dioxide (PbO2), H2SO4, and a separator between the two electrodes. 1. The secondary would provide the pulse. I'm seeking ideas for making a pulsing lead-acid desulfation circuit design. Here is a patent worth reviewing: Patent #3,963,976 (shows that high peak currentApr 9, 2010. A desulfator causes the built-up sulfate crystals in the lead-acid battery to fragmentize. Buy NOCO GENIUS2X4, 4-Bank, 8A (2A/Bank) Smart Car Battery Charger, 6V/12V Automotive Charger, Battery Maintainer, Trickle Charger, Float Charger and Desulfator for Motorcycle, ATV and Lithium Batteries: Battery Chargers - Amazon. net, lead acid battery desulfator (Home Power #77 June/July 2000)] This page was last edited on 20 November 2023, at 03:34 (UTC). The chemical reaction that occurs at the positive electrode and negative electrode of the battery are as follows [3]: 2 2 4 4 2 22 discharge I dont have experience with desulfators but i did replace the sulfuric acid electrolyte with alum on a dead otherwise lead acid battery. $ 5999. Andy Shiekh. I've seen straight DC chargers trickle at 1. Lead acid batteries can now be used for a more indefinite period of time. By restoring the lead sulfate back into the acid solution you can. Lower restriction for charging standard lead-acid batteries at 14.