. Buy It Now. Identify the bad cells :-. FORUMS. zsolt1 said: Most <50Ah batteries resonate around 1. When using Epsom salt, follow these easy steps to treat most starter batteries. Supplying energy to an external load discharges the battery. Third, there is a new kind of battery charger/desulfator on the horizon that will vastly improve the life and performance of lead acid batteries. BatteryMINDer ranks among the best on the market for slow battery charging and storage. or Best Offer. I preyed open the cove sense it was sealed and. 5 amps even if connected to a 7Ah battery. Mark. #1. i see i cant add my pcb here or can someone tell. 36" which is in a suitable size. In this article, you’ll learn the most common. 0 F(Ah) −1. DISCUSSIONS. 5 volts per cell). This restores the battery’s capacity and prolongs its life. 8v (30%) in open circuit. It is not undercharged. 10. Brand New. Free shipping. Because I don't have a warm garage I may just have to wait until warm weather returns before I can fully do the circuit justice in testing it. Lead Acid Battery Desulfator 12V 24V 36V 48V Battery Regenerator 2A Auto Pulse Desulfator. Keeping the lead battery unused reduce its lifetime. 1. 100+ bought in past month. Lead Acid Battery Desulfation. Put some water in one cell and move to the next. 5v but in all other ways tests very good especially the load test. 33 Was: $32. These batteries have a built in battery management system (BMS) and are chemically different. . balls. BatteryMINDer 128CEC2: 12 Volt-2/4/8 AMP Lead Acid Battery Charger, Lithium (LiFePO4) Battery Maintainer, and Battery Desulfator. A cold day can sap 50% or more of the charge out of your battery. " It is designed with 5-stages and is fully automatic. 4. $18. Designed for High-Performance Specialty AGM Sealed Batteries (such as those made by Optima, Odyseey, Polaris & Yuasa. 5 amps, actually it is around 1 amp (measured) flat out. This powerful desulfator is designed to work with batteries and packs ranging from 12 to 72 volts, with a capacity of up to 600Ah. 100% Full - Time U. The average current into the battery will be less than 1. Third is a 100 microsecond pulse that shorts the battery (180 amps?) to remove dendrites. MESSAGES. BatteryMINDer 128CEC1-AA-S5: 12 Volt-8 Amp Concorde Aviation Battery Charger, Battery Maintainer, and Battery Desulfator; 10 3. 84 32% off. A 12 volt SLA battery can be used for a variety of different applications, with a range in capacity as low as 1 amp to over 200! Our rechargeable batteries are completely sealed and maintenance-free. 1 out of 5 stars 78. Although. 1. So I tried the above described method. 0 out of 5 stars 80. Share. 99. He used pulsing to fast-charge batteries. Different aging mechanisms dominated the capacity loss in different cells within a dead 12 V VRLA battery. This sulfation will gradually build and limit the battery's ability to charge, store, and release energy. 4. Opens in a new window or tab. Also, many products available in the. line current is converted to approximately 40 volts D. However a battery in such terrible condition might never recover to its 100 % capacity. This video prov. 5 AMP Fully-Automatic Car Battery Charger Automotive, 6V and 12V Battery Charger Maintainer, Trickle Charger, Supersafe Smart 12 Volt Float Charger, Battery Desulfator for Lead-Acid BatteryThe battery terminal voltage is allowed to rise to between 2. Determine the internalThe Battery Extra restores and recovers battery performance in lead acid batteries. Patented Pulse-type Desulfation keeps Lead Acid battery free of sulfate or dissolves sulfate completely in older batteries. Feb 24, 2012. Formula to check internal resistance of battery. . This BLS-48B is designed for 48 volt battery systems will ship for FREE!. This process should take about 4 hours. 54A lead-acid (SLI) battery desulfator which is powered by the batteries wh it is conditioning when a motor associated with the batteries is off. 1. ---400Ah Battery Desulfator Maintainer to Revive and Regenerate Lead Acid Battery ---Adopt New Advanced Technology: dissolving sulfates without damaging the battery plates;Auto-setting for 12-48V, Peak Amp: 4Amax ---Just connect it to the battery to maintain your batteries automatically, extend battery lifeThe PulseTech PP24l (735x024) is designed Especially For Frequently-Charged 24-Volt Battery Systems. Features & Benefits: BatteryMINDer® Model 128CEC2-OBD2: 12-Volt 2/4/8 AMP Lead Acid Charger-Maintainer-Desulfator w/OBD2 Connector & Lithium Charger Maintainer. The one I have is a feature of my battery charger. 79*3. Decades ago when "everyone knew how to deslfate a battery" the lead cells were a lot thicker. The lid hole will allow you to observe the LED, while the desulfator is used. You may. Joined Nov 13, 2015. Conduct a load test. November 5th, 2008. For solar battery banks, golf buggies, fork-trucks, RV’s, cars and trucks. 6V LiFePO4 Battery Charger AC-DC Smart Charger for Lithium LiFePO4. The lead dioxide (PbO 2) plate reacts with the sulfuric acid (H 2 SO 4) electrolyte resulting in hydrogen ions and oxygen ions (which make water) and lead sulfate (PbSO 4) on the plate. ac. Re: Guess What Will Happen: Battery Desulfation Experiment. Add to Cart. 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. Logged. For solar battery banks, golf buggies, fork-trucks, RV’s, cars and trucks. 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. I have put diodes across the battery that has dampened it so I am fairly sure that the it is coming from the. 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. I need to build a circuit that removes sulphate deposits from lead acid batteries by using a 555 timer generated pulse to cause high frequency resonnance in the battery (pdf attached - the cited web page doesn't seem to exist any more unfortunately). Compared to modern rechargeable batteries, lead–acid batteries have relatively low energy density. Different aging mechanisms dominated the capacity loss in different cells within a dead 12 V VRLA battery. Enjoy precision. $18. Battery Desulfator Circuit. Brand: utipower. 3. Push-button Selection for ALL battery types and charge rates. 2w FREQUENCY RANGE 1. All. STEP1: Take the battery and note down its initial voltage. As is visible in the circuit diagram, the three controlled selections hook. using a traditional transformer. Most regular car batteries are lead acid, including flooded lead acid (the older kind with liquid acid solution), sealed gel cel, and sealed AGM (absorbed glass mat). Most lead acid battery desulfators out there use a flyback design with inductors. BatteryMINDer 12 Volt 2 Amp High Performance AGM Charger Maintainer Desulfator. The Battery Life Saver electronic desulfator dissolves the lead sulfate crystals. 4. 2V battery voltage. Share. 85After the lead-acid battery was charged with high frequency pulse, the battery had lower internal resistance and the voltage of the fully-charged battery and the cold cranking amps were higher, resulting in better battery performance. Suitable additives are magnesium sulfate (Epsom salt), caustic soda and EDTA (EDTA is a crystalline acid used in industry). Availability: BatteryMINDer® 12106 is a 2 stage Charger-Maintainer-Desufator that extends performance and life of 6 Volt lead acid batteries including flooded (filler cap, maintenance-free, valve regulated lead-acid [VRLA], sealed lead-acid [SLA]), starter, deep cycle and hybrid. A lead-acid battery consists of two lead plates immersed in an electrolyte solution of sulfuric acid. Different ways to desulfate lead-acid batteriesCheck the vehicle battery water level and top up with distilled water only. During discharge, both plates convert to lead sulfate (PbSOWhen this vibrational state is occurring, there are uncountable Lead-Acid Battery Desulfator Parts List collisions between the ions in the electrolyte and the battery plates, Item Component Description Cost (US$) as the back and forth vibration Q1 IRF9Z34 P channel MOSFET 1. This drops the sulfate crystals to the electrolyte to. There are patents on the use of high-frequency pulse desulfators to desulfate lead-acid batteries. These desulfator battery chargers can be used on all size, types, and brands of lead-acid batteries, including engine starting, deep cycle, AGM, and other varieties. 99 In Stock. Add to Cart. Free returnsMaximize battery life and capacity, recovers weak batteries. IRF9Z34 LM555CN 79L12 GI826CT 30 F, 16 V 0. Within 90 days. Notes --- This product. Determine the internal resistance of the battery by measuring the terminal voltage with open circuit, V, and then the voltage drop across an accurately known resistive load R, voltage DV. 99 £ 37 . When a battery is discharged some of the lead (Pb) in the lead plate and some of the sulfate (SO4) in the sulphuric acid join together to form lead sulfate (PbSO4). charging current and has a small capcity Ah). The 24-Volt PowerPulse is designed to ensure maximum battery performance on 24-volt lead-acid battery systems. I'm seeking ideas for making a pulsing lead-acid desulfation circuit design. Suitable for 12V lead-acid battery/start-stop battery/dry water battery, applicable to cars, motorcycles, SUVs, stramboats, engineering vehicles, more batteries. 99 $ 10. 97. Lead Acid Battery Desulfator 12V 24V 36V 48V Battery Regenerator 2A Auto Pulse. 99. It will also maximise the cycle life of new or good batteries. connected it makes a buzzing sound, I have seen up to 50 volts being. A place where builders and u. I can see the LED is glowing little and I can hear its switching (magnetic flux developed around L1 and L2) in my AM receiver. Connect multimeter to your battery and check voltage. I recently ordered a $37 battery desulfator kit. #1. An empirical investigation of lead-acid battery desulfation using a high-frequency pulse desulfator January 2021 Journal of Advances in Science and Engineering 4(1):44-52 The major cause of deterioration in lead-acid batteries is sulfation. My Dynasty UPS12-310 high output battery is spec'd at 0. LST 12V Battery Trickle Charger And Maintainer. Free shipping and free returns. It automatically dissolves harmful power-robbing sulfation. Discover numerous 12 volt sealed lead acid batteries at Battery Mart. 0119) This means that the calculated peak current with no losses should be 46 amps. A Summary: Battery Reconditioning. 2. lead acid battery desulfator" 44 Results; Price - OK. Share. In Stock. The batteries treated with Thermoil lasted on average 13 and one half years. [ SIDE NOTE Do not use a pulsing charger on a lithium battery. The inductors are just there to charge the capacitors. A desulfator pulses a high voltage / current spike into the battery that causes vibrations that knock the sulfate crystals off the plates. This device does it by using voltage to generate pulses with high-frequencies to zap sulfate buildups within the battery, attached on its plates. 52. Third is a 100 microsecond pulse that shorts the battery (180 amps?) to remove dendrites. This primes the battery to charge deeper, perform better, and last 3x. It is not undercharged. 99. If the charge cycle does not allow this, give the battery a fully saturated charge once every few weeks. 99. Buy 4A Lead Acid Battery Desulfator Battery Regenerator Auto Pulse Desulfator (Blue): Batteries - Amazon. 6. 0A, connect across battery. Buy NOCO Genius GENPRO10X4, 4-Bank, 40A (10A/Bank) Smart Marine Battery Charger, 12V Waterproof Onboard Boat Charger, Battery Maintainer and Desulfator for AGM, Lithium (LiFePO4) and Deep-Cycle Batteries:. Buy It Now. univie. 3. 4. 2023/10/26 Battery Industry,Battery News. 2 Comments. Meet the GENIUS2 - Similar to our G1100, just better. 12V 24V Car Battery Charger, 15A Lead-Acid Lithium Battery Charger, Smart Trickle Charger Maintainer, Deep Cycle Battery Repair Charger Automotive Desulfator for Car Motorcycle Truck Boat Lawn Mower 3. To reduce heatsinks and costly thyristors, an single-pole-four-way switch could be applied to select. 6 volt lead-acid battery will have an internal resistance of about 0. 12V Lithium, and 12V Repair Mode - for all types of lead-acid and lithium-ion batteries. Download PDF. Desulfation means fixing or reversing sulfation. If you have a 0. The lead–acid battery is a type of rechargeable battery first invented in 1859 by French physicist Gaston Plant. Related Tags. We provide premium chargers and. Now, add Epsom salt to the hot water and stir it until it has dissolved into a solution. 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. 42 U2** 79L12 12 V regulator 0. 36V Lead acid battery charger Battery Desulfator,36V Trickle Charging with Clamps for Car,WheelchairMotorcycle,Lawn Mower,Boat RV,SUV,ATV,Sealed Lead Acid Battery-Repair Batteries. Ok. 82. generated with a current draw of 30 mA. 4. It works incredibly well for AGM and flooded batteries and is incredibly easy to use. Lead acid battery desulfators (pulsers) recover old batteries and extend the life of new ones. $49. Madness. 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. C. If you will be working on full sized golf cart batteries then the direct drive is the way to go. Price. Sulfation is created by discharging a lead-acid battery and such when a battery is charged, the sulfation is converted back which may be thought of as 'desulfation' - ie the removal of sulfation. Adding aspirin to the battery is another hack that is often seen in videos claiming to revive dead batteries. and bridge rectifier. Charger is designed to be used for rechargingA one ohm resistor is good for a small battery and . For a deep-cycle battery, it will take a bit longer, typically between 48 and 72 hours. 50 KHz How to Use 1. Key benefits of using battery desulfurizers include extending the life of lead-acid batteries, improving their performance and capacity, and potentially saving money on replacement batteries. 04. Recovers weak or deeply discharged batteries: including but not limited to flooded filler cap, maintenance-free, valve regulated lead-acid (VRLA), sealed lead-acid (SLA), starter, deep cycle and hybrid. 5V. Automatically detects sulfation and acid stratification. FREE delivery Wed, Nov 22 on $35 of items shipped by Amazon. and bridge rectifier. Detects and rejects batteries with bad cells. Battery desulfator The cheapest and easiest desulfator is you. " Description of "Direct Drive High Power Desulfator". YONHAN Battery Charger 10-Amp 12V and 24V Fully-Automatic Smart Car Battery Charger, Battery Maintainer Trickle Charger, and Battery Desulfator with Temperature Compensation. 7 Top 12 Best battery Desulfator On the market Reviewd; 8 1. $ 5999. If a standard wet lead-acid cell has a high differential of specific gravity between cells, applying an equalization charge may damage the "good" cells due to the high temperatures generated. Share with: Link: Copy link. It is damaging to other types of lead-acid batteries and will reduce the battery life due to the outgassing of hydrogen, which can't be replaced (i. The GENIUS1 is a 6-volt and 12-volt battery charger, battery maintainer, and battery desulfator rated at 1-amp for lead-acid automotive, marine, and deep-cycle batteries, including flooded, gel, AGM, and maintenance-free, plus lithium-ion batteries. 97. The desulfator should be installed as close as possible to the battery terminals. 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. 0022 µF, not 0. It's 35% smaller and delivers 35% more power. So, it’s always important to keep a lead-acid battery in constant use. Lead oxide reacts with the sulfur and oxygen in the acid to give up an electron, leaving the plate positively charged. Sulfation was the predominant aging mechanism in the weakest cell but water loss reduced the capacity of several other cells. 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. Lower restriction for charging standard lead-acid batteries at 14. 3V, sulfur crystals will begin to form on the lead plates. (because it only consumes a low. Desulfators work for me. Hydrometers, load testers, chargers, drill bit sets, battery post. Put your peak circuit across the resistor with the positive lead on the desulfator side of the resistor. Also a. 60% = 12. It can also extend the acid battery life. NOTIFICATIONS. 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. Most battery chargers tend to be too complicated or expensive, but this is the exact opposite. It is not a proven theory and. Not only did the treated forklift batteries last longer than the non-treated ones but during this 13 and one half years the treated batteries only needed water every 3 months, never had any corrosion, never needed to be pressured washed. Anyone with soldering skills can build the unit. 4. OK. The lead–acid battery is a type of rechargeable battery first invented in 1859 by French physicist Gaston Planté. $188. The proposed method not only has very lower pollution level than the conventional recovering of a ULAB into its. This charger actively. There are many success stories on the net about resuscitating essentially “dead” lead acid batteries. Battery rejuventation or desulfation by means of pulsing was invented by Carl Edward Gali, (1928-2009), (retired microchip designer, Texas Instruments), US Patent 5,063,341, filed Oct 16, 1990, issued Nov 5, 1991. 5% coupon applied at checkout Save 5% with coupon. )the float at 13. I found four 12 volt, lead acid batteries with four different problems. To increase internal-resistance measurement accuracy. The build up then drops into the battery acid and dissolves. 99 $ 29. We have 5 separate models that will work on any lead acid battery or battery pack of 12 volts to 120 volts and up to 3,000Ah. 🔋【Wide Range of Applications】This 15 Amp battery charger automotive is designed for 6V/12V lead-acid automotive, marine, VRLA and maintenance-free, and deep-cycle batteries, including flooded, GEL, AGM, EFB batteries with battery capacity 6Ah-200Ah. Sort by Popular Newest Most Reviews Price. (The battery I am working with is a DURA POWER 60 with 260 Load Test Amps when it was new, it sat for 9 months and when I tested the voltage it was at 2. 【All in One】- It's the all-in-one solution battery charger, battery maintainer, trickle charger, and battery desulfator. New Pulsing Disply Lead Acid Auto Plus Battery Desulfator 12V-72V Combined 400AH. 0033 Ohm. BACK TO PRODUCTS >>. ADD TO CART. $98. Find amazing deals on lead acid battery desulfator, aviation battery minder and desulfate optima battery on Temu. 48 Volt PowerPulse PP-48-L Lead-Acid Battery Desulfator. The NOCO GENIUS1, 1A Automatic smart charger is a reliable and easy-to-use car battery charger that is perfect for maintaining your car battery. 05ohm resistor in the neg lead and I get a current waveform similar to what you posted but the question is how do you figure out how much of that current to attribute to the actual desulphation process since. I test a battery desulfator on 2 batteries. On switched ranges less than 30 amps, the average charging power is even less. Automatic Lead Acid Battery Desulfator 12V - 72V Battery Regenerator 400Ah Pulse Repair. - The 40volts DC from above is feed to a capacitor bank through a. Increasing the battery temperature to 50–60°C (122–140°F) during the corrective service further helps in dissolving the crystals. I tested the voltage doubler at 6. USPTO: US Pat 5,063,341 or 2. But this is probably over powered as the power consumed is not more than 1. Battery Life Savers BLS-36N BATBLS-36N Battery Life Savers BLS-36N Desulfator for 36V Golf Carts. Share. 00. 2KHz and 6% duty cycle. Battery damage does not occur during this process. I can see the LED is glowing little and I can hear its switching (magnetic flux developed around L1 and L2) in my AM receiver. Madness. We have a great online selection at the lowest prices with Fast & Free shipping on many items!There has been discussion about the battery charger Harbor Freight Tools has on sale now in their retail stores for $18. 99. 12 Volt Lead Acid Battery Desulfator - New: Power Electronics: 7: Jan 1, 2016: J: 12 Volt Lead Acid Battery Desulfator: Power Electronics: 19: Sep 9, 2014: Similar threads; 555 timer used with regular lighting on a 12 volt 1 amp circuit. These controllers can manage the charging and discharging of lead-acid batteries. 00. 1 volts Scary! but it has come up to and holds at 11. occurring, there are uncountable Lead-Acid Battery Desulfator Parts List. 82 continues. This is an exce. DIY 12 Voltage Lead Acid Battery Desulfator SLA AGM for a few dollars and free shipping. As an experiment, I made a lead acid battery desulfator. Smart Battery Life Extender, Reduces Evaporation. 5V. Guaranteed to never overcharge/undercharge. 48 Volt PowerPulse PP-48-L Lead-Acid Battery Desulfator. The Pulse Tech 12v On-Board Desulfator Power Pulse is designed to ensure maximum battery performance on single 12-volt lead-acid batteries. Shop our unbeatable inventory of Desulfators. 1 offer from $19. Gently shake the battery to ensure that the Epsom salt is well distributed. Or fastest delivery Tue, Nov 21 . 5. 64. So the higher the pulse for a given avg amperage drawn the better the battery's condition. I've only used them on condemned batteries. For more detailed information, please check out this report:working with hundreds of batteries, usi. Then the circuit will generate. I have put up a Web page that will give more details to help you build and use the desulfator circuit. 62 v. Buy a new BLS 48B desulfator to restore and rejuvenate old tired out lead acid batteries that are suffering from sulfation. Opens in a new window or tab. Description: BACKGROUND OF THE INVENTION. 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. Sponsored. 0 out of 5 stars 542. One of the major disadvantages of lead-acid batteries is sulfation, which decreases batteries' efficiency. 99. This means that a badly sulfated small battery should have 5 to 10 volts peak above the battery terminals. $29. Charge or repair all 6V and 12V lead-acid automotive, marine, and deep-cycle batteries, including Pb, GEL, SLA, VRLA, and AGM lead-acid batteries. 43V initially, now when I connect the desulfator up to the battery, that reading can be acquired in a relatively short order (ie a few hours if the battery has been recently desulfated). The origional kickback desulfator ran at . com. In this article, you’ll learn the most common. After that, disconnect batteries from chargers and allow them to rest for 10 minutes. Features: This is a fully automatic battery charger with 7 charge stages. Another way to calculate peak current is: (Vpeak - Vbat) / battery. 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. Firstly, after arranging the suitable charger or the compatible sulfator, you need to connect it with the AGM battery. One popular method is to use a mixture of water and Epsom salt. The first step is to pulse the battery for 15 seconds using a Charged-Induced-Pulse described by desufonator2. Most lead acid battery desulfators out there use a flyback design with inductors. Restore, Improve & Extend Life of all flooded liquid cell acid batteries. collisions between the ions in the. At around $40, the BatteryMinder series is one of the best, and includes a built-in preventative desulfation function. BatteryMINDer 128CEC1: 12 Volt-2/4/8 AMP Battery Charger, Battery Maintainer, and Battery Desulfator; 9 2. Fully automatic operation and very simple to set up. 27,295. Hence, desulfation circuit or charge controller is placed along with the rechargeable lead-acid battery for proper charging and subsequently sulfating gets reduced. For my 33Ah battery that means 33ma trickle current. com. 022 F 0. $162. Sulfation was the predominant aging mechanism in the weakest cell but water loss reduced the capacity of. 1. 99 $ 105 . 147 D Woodbury Rd. wien. Maintain up to 2 batteries at a. Marketed by Battery Solutions & Innovations, Inc. Post Apr 08, 2014 #563 2014-04. July 5, 2009. Lead Acid Battery Scrap is the most commonly found Lead scrap. 22. While not shown at the $18 price, here is the charger's description: Harbor Freight 6/12 volt Battery Charger. Product. The trickle current should only be 1/500 to 1/1000 of the amp hour rating of the battery. A lightly sufated battery can be "Desulfated" in a matter of hours using a 1-4 pound per day pulser. 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. ) (With a DF of . That involves strong FET driving (direct 555 output aint enough), and the shortest and thickest possible wires from desulfator to battery terminal. 4. 3 out of 5 stars 157 $219.