Including models suitable for use by professionals and vehicle owners, the Ring range of smart car battery chargers allow users to diagnose, recondition and charge. The charger can be left connected to a battery all winter and will not overcharge it. I have to assume that perhaps 20-30 days of the 2013 summer saw the shed temps well over 110F. Most “smart chargers” are really rather un-smart and are nothing more than glorified egg-timer voltage limiters. It is up to you to ensure the battery reaches 100% SOC before winter storage and this can be measured by absorption voltage and net current. In most parts of this country we will never see the -60F they see up there. 12v battery … Holy freaking cow, not too bad! 3. Also, check the battery using a voltmeter to make sure it’s in good condition. Your motorcycle isn’t meant to be run for short periods in cold conditions, and you can damage your starter or even cause condensation to form inside of your motor which could cause premature wear. It’s critical to not start an EQ charge before the battery is already at 100% SOC. Automotive. I’ve seen plenty of non-isolated batteries suffer from freezing due to parasitic loads taking them to a low SOC thus allowing them to then freeze, but not properly decommissioned batteries. I have traced it to the charger reaching a thermal limit and turning off because if I put the charger in the refrigerator while charging it will go to the end of the charge time and also in the winter ( I store the tools in the garage) the charger will charge … This means completely disconnecting the bank from the boat and then removing any parallel connections. This caravan battery charger can automatically detect the condition and voltage of the battery before it diagnoses charges and/or reconditions it and includes a clear LCD display. I have also seen some chargers freeze and lock up due to power outages. I would have thought the stratification alone would have damaged it slightly, but maybe the winter hibernation helps inhibit the negative effects of stratification too? For instance, if the initial charging rate is 12 amps, the battery will be fully charged when the needle drops to 6 amps. Based on capacity testing results, I often see this same exact automotive battery group to be failing a state of health test in just 1-2 years, this one is at year five. A 2 Amp trickle charger can be used all winter long. Fall equalization is a standard practice for me when winterizing flooded or Lifeline AGM batteries before winter storage. Some portable car battery chargers can also charge the batteries for lawn mowers, jet skis, and other powered tools and toys. What I can say, based on many years of physically testing marine batteries, is that I’ve yet to test any battery that suggests a 2% tail current, at absorption voltage, that can deliver 100% of its rated capacity. For most flooded batteries this is approximately 1/8″ below the bottom of where the “fill well” ends inside the battery. That damn ADHD thing is a bear…….. What this means is the battery sat from Dec 11, 2012 to September 9, 2013 100% uncharged…… Head bonk…. For shop use I find they are more flexible, extremely accurate and they don’t drop to float prematurely. BatteryMINDer 1510 Battery Maintainer. 4.6 out of 5 stars. After a good equalizing charge surface voltage can remain high for a bit. If this isn’t an … To use tail current as an indication of 100% SOC you want to meet two criteria: 1- Absorption voltage set to the maximum safe level for your battery (brand and model dependent), 2- *Absorption Voltage is held until the current flowing into the battery drops to less than 0.5% – 1.5% of Ah capacity (eg: 0.5A to 1.5A or less for a 100Ah battery). The shed is not insulated and has a black asphalt roof. This is a shot of the shed with the battery sitting on the green box. The Ego battery/charger system is designed so that you can pretty much do whatever you want with your batteries and they will live long, healthy lives. Batteries sometimes surprise me and this case is certainly one of them? Schumacher SC1281 100 Amp 30 Amp 6V/12V Fully Automatic Smart Battery Charger 100A Engine Starter and 30A Boost Maintainer and Auto Desulfator Advanced Diagnostic Testing. It uses a three-stage charging cycle and has an LED display to indicate charge status. They’ll often disguise this menu added charge as “healthy for the batteries“. Leaving the batteries in parallel or connected to the vessel is an not the best idea. Will your charger automatically re-boot? This can be dangerous, and will damage your … The battery will be fully charged when the needle drops to about half the initial rate. A battery tender is a device you can hook up to your motorcycle battery indefinitely throughout the winter. It can charge and maintain an AGM or Conventional flooded battery. At that time the battery … My answer to these owners is to very carefully remove the batteries from the vessel, use your boom and rigging as a crane if you need to, then charge them to 100% SOC then store them in the coolest location you can find. Cold weather, off-season, on-board storage of your batteries is considerably less damaging than is often purported to be. Certainly interesting results but I would not advise letting your own batteries sit like this for 9 straight months. Is so feel free to donate, support the site and keep it growing. They all agreed and all agreed with the volt meter at the SOC. Even the ABYC, in its courses, is now advising proper on-board storage of batteries in colder climates. The power comes back on, or the snow melts, but now the battery voltage has been sucked below the safe turn on threshold and the battery continues to discharge until fully dead. 7- Physically disconnect the batteries from the vessel. Each purchase comes with a 30-day money-back guarantee. Make sure you don’t leave them hooked up to a charger all winter! All winter deer batteries ship within 48 hours and include a 30-day money-back guarantee. They are new just 8 months old do you think they can be salvaged to a workable degree? Chargers with USB ports can even … As a result of the group type of battery chosen the system was designed & implemented for shallow discharges of 70% SOC/30% DOD as the deepest. It is critical, before winter storage, to charge your batteries at the maximum allowed absorption voltage until current declines to 0.5% – 1.5% or less or rated Ah capacity. As the temperature drops, the chemical reaction inside the battery slows down, reducing its capacity and its ability to accept a charge. This mishap though did give me a great opportunity to charge, equalize and re-test this battery for Ah capacity. Currency: USD ($) Charging a lead acid battery to 100% SOC can take many, many hours and even the best AGM batteries can take in excess of 5 1/2 hours, at best, to go from 50% SOC to 100% SOC and this without premature floatulation. Like what you saw or read? Batteries are not items you can put away for the winter and forget about. OptiMate guide to winter battery care Winter attacks your motorcycle’s battery on lots of different fronts. Always ask your yard if it is okay to leave the batteries connected and the charger on. This battery is 6 volts and 1.25 amps. I then went and grabbed my refractometer and performed specific gravity checks on each cell. When you need a car battery charger with extra power, this Wheeled Automatic Battery Charger from Schumacher is everything you need to get your moving again. Many “smart” chargers & solar controllers, or any smart enough to even consider leaving connected full-time, while unattended, may not restart, by design, if the battery voltage gets too low. This battery, labeled/stickered/marketed as a “deep cycle” is not a really a “deep cycle” product, it can certainly work well enough just for a shorter life than a deeper cycling product. If You Haul Your Boat for the Winter 1. EQ can also help reconvert any recoverable lead sulfate and can also help to knock some of the dead lead sulfate off the plate surfaces and yield a healthier battery. https://fineartamerica.com/shop/portable+battery+chargers/winter Click the DONATE button below if you would like to make a donation via PayPal. I suppose I could have just carried it up the ladder, and into my boat, but no sense in breaking my back, the temps are the same. Please note that a battery tender is different from a trickle charger which we will cover later. Make sure you don’t leave them hooked up to a charger all winter! We've shipped over 1 million items worldwide for our 500,000+ artists. 2- Charge the batteries at their maximum safe absorption voltage until current declines to 0.5% – 1.5% of Ah capacity or even less. Pay attention to the charge levels. $72.50. Ideally I wanted to get bi-weekly readings, but so much for that. There is just too much that can go wrong leaving unattended batteries charging over the winter. If the battery has an internal defect, even a mico-leak/short in a plate separator, you really don’t want it connected to any charger or other batteries anyway. Our top pick from all the battery charger we reviewed is the BATTERY TENDER® 6V Junior Automatic Battery Charger. The cold Maine winter temps have not even allowed the battery to drop to a “resting voltage” over a period of four days. In my experience, as a marine electrician, I find the practice of; charge to full then 100% isolate to be safer and more reliable than being left on a permanent float charge, while the vessel is in storage and unattended. Would you like to see more articles like this? Mount the charger in the engine compartment so it will not damage other components and wire the charger positive and negative leads to the battery connections. Due to fitment issues a G-31 was the optimal group size to use, and the owner did not want to spend the money on AGM or GEL. Our three new batteries are now showing 1.94 volts. Boat owners should also be aware that many cold climate boatyards specifically prohibit unattended battery charging, and for good reason, safety & insurance issues. 4.6 out of 5 stars. https://www.autoguide.com/top-7-best-trickle-chargers-for-your-cars-battery If you absolutely feel compelled to charge them in the cold season visit the yard and occasionally hit with some good “bubbling” voltage, then disconnect them again. In Fairbanks you can literally spit and have it hit the ground frozen, not so in the rest of the country. Copyright 1994 - 2019 Compass Marine Inc. | All Rights Reserved. If you like it and want to make a small donation than that’s all I ask. NOCO Genius smart battery chargers is one of the most advanced and safest chargers in the market today. Would you like to see more articles like this? Reliable battery charge level indicators. Please DO NOT feel obligated at all. We stick to our enterprise spirit of "Quality, Efficiency, Innovation and Integrity". 2% gets close, and is far better than the point most smart chargers get to before dropping to float, but it does not result in being able to extract 100% of the rated Ah capacity. 6- If cells SG readings are slightly out of balance, run an EQ cycle until cell SG is equal or the SG stops rising in all cells. When I say hit them periodically them with a good “bubbling voltage” this applies to flooded batteries where stratification can be a concern. This particular Wal*Mart battery (actually made by US Battery Inc.) was still performing better than both CCA & MCA specifications based on both Argus and Midtronics conductance analyzers, but these tools only represent short term cranking capability not Ah capacity. As a professional marine electrician I winterize a lot of boats & batteries and most owners choose the charge to full, EQ if necessary, and isolation from the vessel approach. This is an excellent no-frills 12v battery charger. Pretty simple really float voltages are intended to prevent gassing and are usually far too low to keep the electrolyte moving and in a well mixed state. An EQ charge should always be temp compensated to a voltage of 15.5V to 16.2V on the battery, based on manufacturer EQ specs. Foval 100mA 12V Smart Battery Charger. Quite honestly I was a total disbeliever at the resting OCV of a flooded battery that has sat 100% uncharged for nearly 9 months. See More Reviews. 1- Prior to charging flooded batteries inspect the electrolyte level in each cell. Why? Before conducting this test, at the end of the batteries 5th year of service, I conducted a 20 hour Ah capacity test. This battery was an inexpensive Group 31 “deep cycle” Wal*Mart stickered, automotive group type, but it had led a rather mild life in a system that was purposely designed for shallow discharges. For more on that subject you may want to read: Solar was also added so the battery bank could get back to 100% SOC after each discharge. This is a built in safety/liability feature to prevent the charger from charging into an internally shorted/failed battery or bank. So, the bottom line here is to fully charge your boat’s batteries before you lay the boat up for the winter, but keep them installed. You can definitely leave a battery in the charger between uses without hurting anything. If your batteries are capable of being equalized (EQ), and most AGM and GEL batteries *can not be by the typical “marine charger” definition (*exception Lifeline AGM’s), this is an ideal time to do this. That considerably enhances the risk of the battery exploding due to an arc between the plates inside the battery. D’oh………. This is often easiest on the negative posts but on some boats positive is easiest. Lights are on but the chargers is not charging and the batteries are now at a death voltage.. With a fully charged and 100% physically disconnected battery bank noting except time, temp or an internal defect can discharge it, and when it is cold, you’ve got plenty of time. 4.5 / 5. I see far more ruined battery banks when the batteries are left charging, without any supervision than left charged to full then 100% disconnected. Putting a less than 100% SOC battery into winter storage is simply not good for the battery, Sadly, too many so called smart chargers drop to float well before the battery is actually full. Armed with this knowledge, it becomes clear that if the correct voltage limit is set for the lithium ion battery you are charging, there should be no issue leaving a lithium ion battery on the charger. Still, leaving batteries charging and unattended all winter will more often, not less often, result in damaged or dead banks, the exact opposite of the intended goal. Ideal for long-term connection and winter charging. $72.50. Make sure the portable car battery charger can handle your vehicle’s battery before buying. As can be seen this battery is still resting at 12.72V/100% SOC after two and half months! On December 11, 2012 I charged this used Group 31 used house battery using my bench-top DC power supply. In the video below I discuss one of the more dangerous failure modes for battery chargers. Automotive. The colder it is where your boat is stored, the less self discharge there will be. It is microprocessor controlled to ensure your … Putting a less than 100% SOC battery into winter storage is simply not good for the battery, Sadly, too many so called smart chargers drop to float well before the battery is actually full. Charging lead acid batteries in cold (and indeed hot) weather needs special consideration, primarily due to the fact a higher charge voltage is required at low temperatures and a lower voltage at high temperatures. It is critical however, when charging batteries for winter storage, that you do not confuse the 0.5% in amperage, or less, at FLOAT voltage vs. ABSORPTION voltage. MEGALiFe Battery uses a LiFePO4 cell in a 4S configuration giving a nominal voltage of 12.8v and a fully charged voltage of 14.6v. Can be used for different types of… Before winter gets an icy grip on your battery, have your electrical system tested, including your battery and alternator. Please do not trust any Ah counter or other battery monitors SOC screen to tell you when you have attained 100% SOC. Winter Accessories. The power put out by the trickle charger is very low and will just keep the battery warm. $72. A monthly visual inspection should still take place for safety. For Batteries 65Ah up to 100Ah use a 24 Volt - 8Ah charger. Plug in the charger and allow it to run overnight to fully charge the battery. If your charger has an amp meter, note the position of the meter's needle when charging begins. 9- Leave batteries on-board, less risk of injury or dropping a battery doing this. On boats these days, the number of always on device / parasitic loads has grown exponentially over the last 20 years. Your voltmeter should read 12.4 volts or higher. Please DO NOT feel obligated at all. My suspicion is that if I had tested it in April, when I had intended to, I would have seen minimal to no loss in Ah capacity. BatteryMINDer is another reputable brand that produce a … Removing batteries from a boat is not fun work nor is it really even necessary in colder climates. The power put out by the trickle charger is very low and will just keep the battery warm. Pay attention to the charge levels. There is some overlap and the rule of thumb for that is; if you use the wheelchair or scooter a lot pick the higher capacity charger. This gassing or movement of the electrolyte, at absorption voltages or higher, can help limit stratification but float does not. Upon re-discovering the test battery I immediately went to the barn and grabbed my volt meter, totally figuring this battery was a goner. 2 mo ago. The other reason, and it is legitimate, is liability & insurance. 3- After charging flooded batteries re-check electrolyte level and top up as necessary. Is so feel free to donate, support the site and keep it growing. CAD ($) Yes, I promptly got ADHD and totally forgot about the battery in the shed until today. While a failure to regulate (limit) voltage is somewhat rare this does happen and can happen. Like What You Saw Or Read? It also has the versatility to maintain garden and lawn, marine, automotive, and deep-cycle batteries. A later blog will deal with lithium batteries. I then conducted another 20 hour capacity test on this battery. Ed’s recommended approach is as follows: bring batteries to a full charge (ideally shortly after haul out), and disconnect the negative terminal. 8- Physically disconnect any paralleled batteries from one another. Battery type also plays a role with AGM and GEL batteries self discharging at a slower pace than flooded lead acid. If your battery is near death, it’s much better to find out on your own schedule than when you’re busy with the demands of daily life. Charging therefore needs […] Contact: www.ringautomotive.co.uk. 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