Battery desulfator. Dewalt DXAEC2. Battery desulfator

 
 Dewalt DXAEC2Battery desulfator  I have no experience with this kind of thing, though I do store 'dead

BatteryMINDer® Model 2012: 12-Volt 2 AMP Charger-Maintainer-Desulfator (Worldwide Usage) For All Sizes and Brands of Standard 12 Volt Lead-Acid Batteries including but not limited to flooded: filler cap, maintenance-free, valve regulated lea-acid VRLA), sealed lead-acid (SLA), starter, deep cycle and hybrid. 4. Mix the paste-like solution. Specification. 01 ounces lightweight design makes it easy to port. 2/10/40/200 Amp, 6/12V Automatic Battery Charger with Engine Jump Start $ 119 99. Frequency is around 1. BatteryMINDer® Model SCC-180: 12V 180 Watt (12V 180W) Solar Charger-Maintainer-Desulfator. FREE delivery Wed, Nov 1. The float mode helps to maintain the battery’s charge level without overcharging it. For 12 & 24 volt battery packs up to 500 Ah. 1-48 of 236 results for "battery desulfator 12v" Results Price and other details may vary based on product size and color. Battery Life Savers BLS-36N BATBLS-36N Battery Life Savers BLS-36N Desulfator for 36V Golf Carts. 99 $ 19. EXTENDED BATTERY LIFE - Automatic full time desulfator reverses sulfation (a buildup of lead sulfate crystals) the primary cause of early battery failure by using a patented range of high frequencies to safely remove sulfation and recondition weak batteries. Brief content visible, double tap to read full content. Throughout this process, your battery will be trickle charged. But be aware that F16 stops working below 12. It's not that deep cycle batteries like deep cycles, its that the internal construction is built to withstand it for more cycles than a non-deep cycle battery. The Tornado1200 is a 6V & 12V Lead-Acid Battery and Lithium-Ion Battery charger. The so-called desulfators apply a higher then normal voltage - either steady or pulsed. NOCO seems focused on delivering an effective, user-friendly charger, and to that end, the company nailed it with the Genius 1. Avoids under-charging in cold weather down to -4F and avoids over-charging in hot weather. This is a far better method than what was demonstrated in Figure 1 and 2. Similar to our G4, just better. Add to Cart. Then it automatically selects 12,24,36 or 72 volts. The Tornado4000 can supply a constant 13. 1. It’s a battery maintainer, trickle charger, battery desulfator, and a DC power supply all in one. Eliot. Maximizes battery life and capacity, reconditions weak. Charge the golf cart battery with a slow charger overnight or for at least 12. 77476 reviews. After two days of normal use and recharging the lower battery dropped to 2-volts on discharge while the other battery lost about 1-volt under its last discharge rate. The XTREME Charge XC100-P  Battery Charger & Desulfator is the best charger for a 12-volt battery. battery. Step 1: The Dilemma. $25. The BLS-24/36 Multi-F is ideal for 24 volt battery banks that are larger than 1,000 amp hours. This Product has been merged with the BLS-48N. The 1500 features BatteryMINDer’s SmartTechnoloy that automatically charges and pulses the battery to help extend battery life. #1 · Jan 7, 2021. A week ago I put two batteries on my two new Battery Desulfators from China. 06. com FREE DELIVERY possible on eligible purchasesSTEP 2 Remove the batteries from the cart using your wrench. 5% off coupon Details. 1 inches small surface area for convenient storage. Items 1-12 of 25. The battery voltage is now 13v (from 12. It is compatible with all types of 12 V lead batteries, making it an ideal option for boats, trolling motor, lawnmower, cars, and watercraft. Implementing the method through PWM controlled circuit is. Lead Acid Battery Desulfator 12V 24V 36V 48V Battery Regenerator 2A Auto Pulse Desulfator Brand: cleanpower 4. Add to Cart. Manufactured by BATTERY LIFE SAVER. The desulfation should be performed very quickly. Part No. There are also numerous factors to consider, including the condition of the battery, the amount of sulfation, and how the battery is desulfated. Battery. $136. Dewalt DXAEC2. However, Battery Sulfation can be reversed. BatteryMINDer® Model 128CEC2: 12V 2/4/8 AMP Charger-Maintainer-Desulfator & Lithium Charger Maintainer. E-101107 P/N VDC24041AA-S1-MNL VDC Electronics, Inc. It is rated 5-amps (1-amps per bank) for all types of lead-acid batteries, including flooded, gel, and AGM, as well as marine and deep-cycle batteries. Each 12-volt battery bank provides up to 5-amps of pure charging power, plus the GEN5x2 doubles as a battery maintainer and battery desulfator. Store SKU # 1006110629. 147 D Woodbury Rd. A sulfated battery’s voltage will initially be typically in the 2 to 6V range. In this article, you’ll learn the most common. 4. Charge it up to full capacity and let it rest for a few hours. 3 out of 5 stars. Open Up the Battery. Do more with Genius - Designed for 6-volt and 12-volt sealed lead-acid automotive, marine, RV, powersport, and deep-cycle batteries, including flooded, gel, AGM, SLA, VRLA and maintenance-free,. It’s compatible with 6V/12V lead-acid and 12V lithium-iIt appears this $20 desulfator device actually saved my 12v AGM battery, while the other $50 charger/desulfator combo device I bought ruined my deep cycle 12v battery (*not; see 8/6/18 update; desulfating can drop electrolyte levels and needs to. (0) 1 Year Limited Warranty. 200. Use of Desulfators. 99. This BatteryMINDer charger can maintain up to four 12 Volt batteries at one time when connected in parallel by using SmarTechnology ™ Y-Connectors (part. html file, and double-click on it. Qty. Amperage. Your Battery Minder product will keep your battery in optimum condition, and the specialized desulfation technology will insure it stays there. Due to sulfation, battery capacity gets smaller and smaller every day. Red light will flash in cycle. User-Selectable Settings for All Sealed / Wet (filler cap) / Maintenance-Free / AGM / Deep Cycle / RV / Marine / PLT, Lithium Batteries, and Odyssey brand Lead-Acid based Batteries. Rating: 100 % of 100. 39. It's designed for all types of 6-Volt/12-Volt lead-acid batteries, including flooded, gel, AGM and other maintenance-free batteries. I test a battery desulfator on 2 batteries. SC1309. 95 $ 52 . 50 USD. 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. 66V/cell (15 and 16V on a 12V mono block) for about 24 hours. Model # GEN5X2. BatteryMINDer® Model 1215C: 12V 1. Ampeak Battery Charger,2A/8A/15A Car Battery Charger,6V/12V Fully Automatic Smart Battery Maintainer with Winter Mode, Auto Desulfator, Battery Recondition, for All Lead-Acid and LiFePO4 Batteries TowerTop 2/15/25 Amp Car Battery Charger, 6V/12V Fully Automatic Smart Battery Maintainer with Engine Start, Auto. This Battery Life Saver is ideal for both old and new battery systems and comes with easy to use alligator clamps. I dont have experience with desulfators but i did replace the sulfuric acid electrolyte with alum on a dead otherwise lead acid battery. Guaranteed to never overcharge. $2299. Schumacher SC1359 is a smart and reliable battery maintainer that can charge and maintain 6V and 12V batteries for cars, trucks, SUVs, marine, and RVs. VDC Electronics has a selection of aircraft battery accessories to offer. ☕🍩 If this video helped you & you would like to make a modest donation to the channel, why not buy me some coffe. Get it. Joined Nov 13, 2015. Battery Charger Desulfators; Solar Pulse Desulfators; Blog; Account . BLS-12N Battery Life Saver Rejuvenator Desulfator. For those on a budget and looking for a cheap battery desulfator to test out, the Clean Power device is a great option. Battery Life Savers BLS-48N Desulfator for 48V Golf Carts. A conventional charger may be used, however owing to the danger of harming the battery, we do not suggest it. DETAILS. The Automatic Lead Acid Battery Desulfator 12V – 72V Battery Regenerator 400Ah Pulse Repair is a reliable and efficient device for maintaining and extending the life of lead-acid batteries. Its not a humongous amount of charging power for a really large battery. It is essential to charge the battery fully and avoid overcharging. 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 10A 12V/24V Trickle Charger, Smart Automatic Battery Automotive 7-Stage Charging Battery Maintainer with Pulse Repair Function, for. Technically, they are fantastic to make the lead-acid batteries last for more years, but my results (maybe due to wrong installation) have given contradictory results; furthermore, the technology is very recent (commercial models are. MOTOPOWER MP00206A 12V 1. $22. 1 Review . The inductors are just there to charge the capacitors. The Battery Desulfator With the Most Reviews. Support trickle charge function to maintain your batteries. Maximize battery life and capacity, recovers weak batteries. Size (L×W×H)[2-Pack]1. It's the all-in-one universal charging solution - battery charger, battery maintainer, trickle charger, float charger, plus battery desulfator. Best Battery Desulfator List. 2. Desulfator and dead battery repair; Power and extension cables to product may not be outdoor-rated; Best Value. $69. 99Battery Extra EX01 12-24-200. Compare different types, features, and prices of the best battery desulfators in 2023. You can rejuvenate a worn out lead acid battery by removing sulfate build ups with multiple methods. 979. Typically. It works quite well. Battery Charger Desulfators; Solar Pulse Desulfators; Blog; Account . This page is intended to provide builders of the battery desulfator circuit, as originally shown in Home Power Magazine , issue number 77, with additional information and very important corrections to the original diagram. It's the all-in-one universal charging solution - battery charger, battery maintainer, trickle charger, float charger, plus battery desulfator. Give your battery what it needs, Thermoil Battery Desulfator. 022 µF Disk ceramic 0. Update: Desulphator took about 4 days to complete and brought resting battery voltage after a few hours standing from 11. com FREE DELIVERY possible on eligible purchasesI fully agree deep discharge isn't great for a battery even if it is a deep cycle battery. 99. battery care is paramount. Frequently bought together. . The Original Charger & Desulfator PulseTech products created the first and safest battery recovery tool using their patented frequency based charger desulfator ( XC100-P Xtreme charger ) that attacks and dissolves the sulfate crystals. Various methods of driving the insoluble lead-sulfate back into solution have been proposed and tried, all based on over-voltage. Battery Tender Battery Tender - 026-0005DL-WH. Battery Life Savers BLS-48N Desulfator for 48V Golf Carts. Huntington, NY 11743. The 555 timer circuit, also known as IC 555, is a modified circuit that can work using a standard control mode. EXTENDED BATTERY LIFE - Automatic full time desulfator reverses sulfation (a buildup of lead sulfate crystals) the primary cause of early battery failure by using a patented range of high frequencies to safely remove sulfation and recondition weak batteries. 98. Batteries often fail with sulfates develop slowly and cover the battery plates, but this may be solve by desulfators. Buy Clore Automotive PL4050, Pro-Logix 4-Bank, 20-Amp (5-Amp Per Bank) Fully-Automatic Smart Charger, 6V and 12V Battery Charger, Battery Maintainer, and Battery Desulfator with Temperature Compensation: Battery Chargers - Amazon. Rating: 100%. 1 Review . Battery Reconditioning Chargers: Another popular method is using a battery reconditioning. Learn how they. BatteryMINDer VPP-12: 12/24 Volt Vehicle Power Plug - Replaceable 15 AMP Fuse. The BLS-12/24C is what you want for a 12 or 24 volt battery bank that is 1,000 amp hours or less. Make sure to ask the shopkeeper if the desulfator is AGM battery supported. This sulfation will gradually build and limit the battery's ability to charge, store, and release energy. MOTOPOWER MP00205A 12V 800mA. #12. BatteryMINDer® Accessory: BC-AA 2415: Insulated Battery Clip Cord Set. 00 with coupon. Eliot. $ 69. 50. Battery MINDer makes the OBD-12, for 12 volt systems for example, and Pulse Tech offers their very own Power Pulse, the PP12L, also for 12 volt systems. These should only be initiated after the battery has spent many hours held at 14. MY2013 1025R TLB. It utilizes pulse current to desulfate the sulfation of the battery at its resonant frequency. 0 in. The Battery Extra is an electronic battery reconditioner and battery desulfator designed to recover and rejuvenate LEAD ACID BATTERIES, typically used in cars, golf carts/buggies, forklift trucks, boats, RV’s, motorhomes, mobility vehicles, large trucks, electric vehicles, standby power packs, solar and wind systems, that are sulphated. 3V, sulfur crystals will begin to form on the lead plates. The built in battery tester indicators. Sort By. 951. It features our all-new hyper-density technology making it the most compact, lightweight and energy efficient battery charger on the market, plus an. 1. Simply mix together 1 cup of water and 1/2 cup of Epsom salt, and then pour this mixture over the battery terminals. Use all available power even when the battery is down to 1% life. BatteryMINDer® Model 2012-AGM: 12-Volt 2 AMP Charger-Maintainer-Desulfator for Optima, Odyssey, Polaris, Yuasa & other High Performance Specialty 12 Volt Sealed AGM Lead-Acid Batteries. Ran fine in my truck for two. Replacing the G3500, the Genius5 is 35% smaller than the old. 3 Step 2: Remove the Top Cover. View as Grid List. This fuse-protected, spark-proof battery desulfator reduces naturally occurring sulfation which increases performance and makes vehicle batteries last 3 times longer without ever overheating or overcharging. One of the easiest ways to prevent battery sulfation is proper battery storage. Learn how to prolong the lifespan of your car battery with a battery desulfator, a device that can remove sulfation and charge your. A desulfator charger determines your battery’s health and sulfation level, then attempts to restore the battery’s lost capacity. Storage Battery Systems . This versatility makes it ideal for. 6/2/40/200A 6/12V Fully Automatic Battery Charger/Engine Starter. 12 Volt Desulfation & Battery Restoration. $113. 47 $ 76. #1. 82 U1 LM555CN Timer IC 0. The 22-28 KHz frequency pulses over a 1,000,000 times a minute and can restore seemingly dead batteries to near new condition. 4. See below, these are the basic specifications for the battery desulfators we tested. BatteryMINDer 128CEC1: 12 Volt-2/4/8 AMP Battery Charger, Battery Maintainer, and Battery Desulfator. A battery regenerator is a device that restores capacity to lead-acid batteries, extending their effective lifespan. com Fresh, New Stock. It's designed. This ensures a complete and successful. 4 out of 5 stars 1,579 16 offers from $71. Each lead acid battery has a total frequency of around 2 to 6 megahertz. Batteries for . charged in parallel to the desulphator so that the battery gets rejuvenated and completely charged. 50 KHz How to Use 1. The Mroinge 5-Amp Fully-Automatic Battery Desulfator is a 6-volt and 12-volt battery charger, battery maintainer, trickle charger, and battery desulfator. If your battery is swollen, take appropriate. Don’t discard a sulfated battery, rejuvenate it. 2 offers from $99. 5 volts DC to power on-board devices drawing up to 4 amps. Charge your batteries beforehand for at least 12 hours. 00. No buttons to press — the diagnostic LED indicators display the battery's condition and actual state-of-charge profile. More Buying Choices $66. Top 10 Best Car Battery Maintainers. I spent much time a few years ago researching renewable energy use and built a small wind/solar setup in my basement. Then brush it on the battery terminals to remove any corrosion. Go to step 1. Any battery discharge, including internal discharge, produces sulphation on the battery plates as part of the chemical cycle, and given enough time, this sulphation hardens,. Proposition 65: Lead Compounds. The desulfator should be installed as close as possible to the battery terminals. 4. Not really impressed with NOCO at this point. FEATURING SMARTECHNOLOGY – Model 1500 features a SmarTECHnology plug’n run 1. 12V Deluxe Battery Maintainer and Float Charger $ 19 99. Hence using a regular battery charge may cause damage. Desulfators are devices that help to remove sulfate buildup from lead-acid batteries. BatteryMINDer® 28252-AA: 28-Volt @ 25- Amp Ground Support Power Supply-Fast Charger-Maintainer-Desulfator (Worldwide Usage) $803. This is an exce. Perfect for charging and maintaining all 12-volt lead-acid, flooded or sealed maintenance free batteries (AGM and gel cell). DieHard is one of the top names in the battery industry, so it’s no surprise that they also make a top-notch battery maintainer. This product is non-hazardous. 95. Add to Cart. Battery Chargers. Briefly touch the plus probe of the meter to the minus terminal of. The "Desulfators" generally use high. I tried to repair them with an auto battery desulfator. Desulfates up to 8 batteries at a time. Guaranteed to never overcharge, regardless of how long connected. GENIUS2X2. Thereafter, a high-frequency pulse desulfator was connected to desulfate the battery bank consisting of the four batteries. 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. Save 20% with coupon. But it probably depends upon many factors in how the sulfation occurred. Add to Wish List Add to Compare. 1. I built a buck-boost inverter type desulfator for under $30 in parts which I put to use on a number of scrap batteries I found at the recycle center. The original battery rejuvenator desulfator technology was developed and patented by Canadus Technologies and sold to PulseTech in the late 1990's before being adopted. 3522 posts · Joined 2014. 5 Amp battery charger/maintainer with full-time automatic high frequency pulse desulfator (not high voltage)that can help extend a battery's life up to 4 times its normal life. 750 Peak Amp Portable Car Battery Jump Starter and Power Pack. 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. Those methods include the use of a trickle charger, electronic desulfator, chemical desulfator, or a homemade epsom salt mixture. The market for battery desulfators has exploded over the last few years as new companies and technologies come to market armed with the latest research & maintenance techniques. Multiple banks - A two-bank battery charger maintainer rated a 4-amps - 2-amps per bank - designed to charge and maintain multiple vehicles like cars, motorcycles, ATVs, boats, RVs, trucks, lawn. The recommended 'Batteryminder' is over $100 , and according to its reviews can (but not necesseraly will) revive even completely dead batteries. The desulfator would then be left on the battery when the cart is in use and would continue to prevent sulfation buildup as you re-charge using the carts primary charger. Rating: 100%. It functions as a battery charger, battery maintainer, trickle charger, float charger, and battery desulfator. Les #désulfateurs ou #régénérateurs envoient des pulsations de courant électrique à. I feel a battery desulfator will in theory work to add some life back to a sulfated battery. 99 $. 1. 38 C3 0. 85. I believe the two top choices are the battery minder and battery tender. $49. 00. Apr 9, 2010. Do battery desulfators really work? Motor Trend tested two popular models and found that they can restore dead batteries to like-new condition. This sulfation will gradually build and limit the battery's ability to charge, store, and release energy. Batteries often fail with sulfates develop slowly and cover the battery plates, but this may be solve by desulfators. According to TABLE 8 in the US Battery User Manual, the batteries are fully charged at 12. Buy Schumacher SC1281 6/12V Fully Automatic Battery Charger, Engine Starter, Boost Maintainer and Auto Desulfator with Advanced Diagnostic Testing- 100 Amp/30 Amp, 6V/12V: Battery Chargers - Amazon. Fact #1: The Battery Sitter’s high voltage desulfation mode cannot engage if vehicle electronics / wiring are sensed. Pulsetech Battery Desulfator: Pulsetech makes battery desulfators for both military and commercial uses. 2. $20. 27,295. The genius5 is no exception, combining battery charger, maintainer, trickle charger, and desulfator functions in one very small unit. AGM Battery Desulfation Process A desulfator or charger is always required when desulfating an AGM battery. Electronic desulfators are the safest and the most effective way to keep your batteries free of damaging sulfation. Intelligent Auto Pulse Battery Desulfator IP66 waterproof plastic box Auto Pulse Battery Desulfator ht. Allow battery to "REST" overnight for a minimum of 12 hours. SKU. Enter the on-board desulfator. Battery Minder is a world leading battery Technology Company. com. BatteryMINDer 1500 | 12v 1. NOT A CHARGER. Far as marine use, at least for trolling. Download. 35 (Was US$23. It's 35% smaller and delivers 35% more power. Also Available at: Walmart. 3 out of 5 stars 570. La nouvelle génération de chargeurs de batterie a une fonction "repair". This item: 10-Amp Car Battery Charger, 12V and 24V Fully Automatic Smart Car Battery Desulfator, Battery Maintainer Trickle Charger, Battery Maintainer with Temperature Compensation for Boat Motorcycle. $. $38. 【Charger, Maintainer & Desulfator】 - An all-weather battery charger, battery maintainer, trickle charger, and battery desulfator. BatteryMINDer® Model 48021: 48 Volt 2 Amp (48V 2A) Battery Maintainer/Desulfator. It features our all-new hyper-density technology making it the most compact, lightweight and energy efficient battery charger on the market, plus an integrated thermal sensor for improved battery life. 95. $8999. Willen. $84. BLS-12/24BW is designed for 12 and 24 volt solar/wind battery banks. Meet the GENIUS1, one of our most powerful, highest-performing, energy-efficient, and compact portable universal battery chargers yet. Overall Pick YONHAN Battery Charger 10-Amp 12V and 24V Fully-Automatic Smart Car Battery Charger, Battery Maintainer Trickle Charger, and Battery Desulfator with Temperature Compensation 4,630 $2999 List: $34. Or fastest delivery Thu, Sep 28 . Learn how they work, what to expect, and how to prevent sulfation in the first place. Works faster than BLS-12/24-A. 50 and 2. The. Desulfator Circuit and Theories Figure 2-1: 12 volts battery desulfator Note: In the battery desulfator design, the value for C2 should have been 0. Similar to BLS-12/24B but the wires are 4 feet in. 379 reviews. For use with a battery charger to rejuvenate unusable batteries. Desulfators: I have several 12Volts and 24Volts desulfators (example: PPL24 for 2 serial 12Volt batteries). It desulfates lead acid batteries as well. Dual voltage model desulfator designed to recover or extend the cycle life of all types of 12 and 24 volt lead acid battery packs up to 500Ah. Is it safe to charge battery with short (10us) pulses of high voltage high current?This is exactly what our SC-2030 solar controller does (a shameless plug for our product!) - measures the amp-hrs returned to the battery and lets you put back the last discharge amount and some specified excess charge every time the battery is charged. This was due to the other battery dragging it down I figured. Check for smoke. BatteryMINDer® Model 1500 features a SmarTECHnology™ plug 'n run 1. 5 AMP battery charger/maintainer with full-time automatic high frequency pulse desulfator. Only $ 64. $162. 3. It features a digital display, multi-stage charging, and auto-voltage detection. 4 out of 5 stars 918. DieHard 71219 – Best Battery Maintainer Overall. Save $2. 2. In stock. Rating: 100%. Schumacher SC1359 Fully Automatic Battery Charger, Maintainer, and Auto Desulfator with Battery Detection - 15 Amp/3 Amp, 6V/12V - For Cars, Trucks, SUVs, Marine, RVs, 4 4. It. Add to List. 39. 48V On-Board Battery Desulfator BLS-48N. When using Epsom salt, follow these easy steps to treat most starter batteries. 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. The Tornado1200 offers multi-step protection for small and large. 25 Amp Lithium Battery Charger, 12V and 24V Lifepo4,Lead-Acid (AGM/Gel/SLA. In this example each battery will draw current through exactly three interconnecting leads. Included is a GENPRO10X3 30-Amp 3-Bank Waterproof Onboard Marine Battery Chargers (120-240VAC), Self-Tapping Mounting Screws, User Guide, 3-Year Warranty and certified to UL1236, ISO 8846, and. 99 2. . $98. The desulfator circuit a gadget that feeds the battery regularly with brief yet hard pulses whilst it discharges slightly between the pulses. This is what desulfation (desulphation)is about. NOCO GENIUS2, 2A Automatic Smart Charger, 6V and 12V Portable Automotive Car Battery Charger, Battery Maintainer, Float Charger, Trickle Charger and Battery Desulfator with Temperature Compensation. 1. 1 What You Will Need: 1. Golf cart Battery Charger, 48V 13A and 36V 18A Trickle Battery Charger,48 Volt cart Golf Charger,for 48 Volt Club Golf Car,Lithium,LiFePO4,Lead-Acid AGM/Gel/SLA. This is what desulfation (desulphation)is about. It's the all-in-one universal charging solution - battery charger, battery maintainer, trickle charger, float charger, plus battery desulfator. Seller Shipping Policy. Recharge the battery with the BatteryMINDer battery charger desulfator to ensure that it is slowly and completely charged before you determine its condition.