Does jumper have to be same size as main power wire? Can you recommend some choices for a battery charger. This high voltage to a discharged battery will not overcharge it. The output of a timer charger is terminated after a pre-determined time. These regulated taper chargers do not allow the voltage to reach more than a trickle charge. Here‘s my question. Debbie I just purchased two AGM Optima Blue Top batteries (D27M) to use as house batteries on my houseboat (I live aboard). Clever Survivalist Nice article because of simplicity. (batteries can become drained in two ways. So now it looks like I need to buy and install a new battery charger. My question is: Will a 24V/13A charger do the job on recharging my setup? Since the OP wants it to last for 8 hours, then it seems that the AH rating of the battery would only need to be 460AH (57.5Adc*8H), or a Reserve Capacity (RC) rating of 1104 minutes (8hr*60mins/hr=480mins@25A*2.3 [since the battery has to supply 57.5 A instead of 25A]). BatteryStuff Tech The YTZ14S from Motocross is an AGM battery. We cater specifically to microprocessor-controlled chargers, also known as smart chargers. Should contain only letters, numbers, and (' - .)! Power may be delivered through the USB charging ports,[17] or wirelessly. How high should the charge cycle, bulk, absorb and float cycles be. cars, boats, or RVs). The other day I went to charge it and it was very low 9% according to the charger. I‘m trying to size a multi-bank battery charger for a boat. I’m using the battery for a trolling motor. Popular battery types include lithium-ion (Li-ion), nickel-metal hydride (NiMH), nickel-cadmium (NiCd), and lead acid. While rarely stated explicitly, the unit of the C-rate is h−1, equivalent to stating the battery's capacity to store an electrical charge in unit hour times current in the same unit as the charge or discharge current. Car Battery Charger 12V/8A 24V/4A Automatic Smart Battery Charger/Maintainer with LCD Display Pulse Repair Charger Pack for Car, Lawn Mower, Motorcycle, Boat, SUV and More. I’ve heavy load relays that I may use to wire the three banks in temporary parallel or they could be hard wired together for the 12×190Ah power pack. The batteries are connected in series to produce 12v. As it turns out...it took 30-36 hours to reach full charge (green light). Simple AC-powered battery chargers usually have much higher ripple current and ripple voltage than other kinds of battery chargers because they are inexpensively designed and built. High-rate chargers may restore most capacity much faster, but high rate chargers can be more than some battery types can tolerate. Three batteries/bank: 1 red top, 1 yellow top, and 2 6v golf cart. With 300 AH, I recommend a 30 Amp charger. BatteryStuff Tech For charging off a generator we recommend that you pick a charger that does not have an amp rating that exceeds 25% of your total amp/hr. I don’t have that much experience with batteries. A battery charger, or recharger, is a device used to put energy into a secondary cell or rechargeable battery by forcing an electric current through it. Richard An excellent and very informative article, thank you! After studying many articles and web sites, including those specifically from authors writing about my own area of interest in batteries, I believe I found most of my answers (or at least solid confirmations and clarifications) here. I connected the charger to the battery and after some time it started to make a bubbling boiling sound. Some examples follow: Switch Mode Regulator (Switcher) - Uses pulse width modulation to control the voltage. I also have a minnkota 36V 101 TM on the bow. This simplicity means that a simple charger is inexpensive, but there are tradeoffs. BatteryStuff Tech I recommend the Battery MINDer 12 Volt 2 Amp High Voltage AGM Only Charger BM2012-AGM. China, the European Commission and other countries are making a national standard on mobile phone chargers using the USB standard. Does the use of appliances confuse the charger? 99. I don‘t want to trash two Optima batteries that I just bought. How does it asses the battery if at the same time resistive loads, inductive loads or both are being taken out. Is there any need to put a power bar/surge protector between the wall plug and the new smart charger? Since the inverter apparently adds 15% to the power consumption, then the output current will then be 57.5Adc. 50% depth of discharge per cycle is our recommendation because it‘s the most cost effective solution. BatteryStuff Tech As the article suggest the ideal amp rating for a battery charger is 10% of the battery packs AH rating. BatteryStuff Tech I recommend a 48 volt charger, of course. Now I have to buy another charger? Battery chargers are made with varying voltages. I bought my son a Peg Perego 12V John Deere Gator ride on for his birthday which comes with a 12V 12AH sealed lead acid battery. A car has managed to drive 1,100 miles on a single battery charge. can charge all battery types), and include automatic capacity testing and analyzing functions too. Some batteries may even explode. Some battery types have high tolerance for overcharging (i.e., continued charging after the battery has been fully charged) and can be recharged by connection to a constant voltage source or a constant current source, depending on battery type. I have a Schumacher charger that has a setting for this type battery. The charger is suppose to be automatic, but it may be defective. For instance, a 12 volt 30 amp charger can supply a load up to 30 amps. Get pedalling to charge your phone", "AN913: Switch-Mode, Linear, and Pulse Charging Techniques for Li+ Battery in Mobile Phones and PDAs", "How Pass Through Tech Lets You Use Power Banks In Creative Ways", "Apple Smart Battery Case for iPhone 6S review: Addressing the iPhone's biggest weakness", "Galaxy Note 7 S View Standing Cover and Battery Pack hands on", "IRL: Testing the Nokia Lumia 1020's optional camera grip / battery case", "Samsung Galaxy S 4 ZeroLemon 7500 mAh Extended Battery Review", Fuji Heavy Speeds Up Recharging of R1e EV, China to work out national standard for mobile phone chargers, PC World:Universal Chargers are a Good Start, https://en.wikipedia.org/w/index.php?title=Battery_charger&oldid=999633478, Articles with unsourced statements from June 2015, Articles with unsourced statements from October 2010, Articles with unsourced statements from September 2010, Articles needing additional references from June 2010, All articles needing additional references, Wikipedia articles that may have off-topic sections from July 2019, All articles that may have off-topic sections, Articles with unsourced statements from May 2020, Articles to be expanded from September 2020, Articles with unsourced statements from January 2011, Articles with unsourced statements from December 2013, Articles with unsourced statements from June 2010, Creative Commons Attribution-ShareAlike License. BatteryStuff Tech I would recommend a converter/charger/power-supply around 45-55 amps, make sure it is at least a 3 stage smart charger. Many thanks. If you draw 90% at a time, then have too little battery power and you will find yourself replacing it very prematurely. BatteryStuff Tech Not every smart charger will have the “voltage ramp up”. [8], A pedal powered charger for mobile phones, fitted into desks has been created by a Belgian company WeWatt, for installation in public spaces, such as at airports, railway stations and universities have been installed in a number of countries on several continents. (Meaning that the rating max charge current will be 10 amps instead of 5 amps?? I need a battery that will give me 8 hours of power. As with all battery types, degradation also occurs faster at higher temperatures. could you please help me out. Solar panels are often connected to the electrical grid via control and interface circuits, whereas portable solar chargers are used off-the-grid (i.e. Had I known it was going to take 12-hours to get a full charge I wouldn‘t have bought the Optima batteries. Thankyou Steve. If I‘m on an EHU (Electric Hook Up not sure American term) I‘m not charging and running the battery in separate cycles. In a Lead–acid battery, this breaks down lead-sulfate crystals, thus greatly extending the battery service life.[11]. From the SPEC Sheet for the Optima Batteries (http://www.optimabatteries.com/en-us/shop/bluetop/optima-batteries-8027-127-d27m-27-bluetop-marine-deep-cycle-starting/), recommended charging info is: Recommended Charging Information Since the Law of the Conservation of Energy applies, then the input power (Wac) must be equal to the output power (Wdc), then since the input voltage in this case is 120Vac and output voltage is 12Vdc, the ratio is 10:1, which means that the current (Amps) must be in inverse proportion to maintain the equal power. Non-isolated: the battery charger has a direct electrical connection to the A/C outlet's wiring. [9], Some chargers use pulse technology in which a series of voltage or current pulses is fed to the battery. I have a 15 foot bass boat,first boat ever and do not know a lot about the difference in batteries and all I know is it looks like a sealed car battery. To hear my partner tell it, his Odyessy batteries are FAR SUPERIOR to Optima anyway. My question: Is the electrolyte, absorbed into the glass matting, in these AGM batteries subject to stratification in the same way that the electrolyte in a flooded wet battery is? Paul Mulvenna Excellent article. The DC pulses have a strictly controlled rise time, pulse width, pulse repetition rate (frequency) and amplitude. Just make sure the charger is compatible with VRLA batteries (AGM if they are sealed batteries). The 1st step is an automatic desulfation step. Just make sure your connects are correct. A smart charger is defined as a charger that can respond to the condition of a battery, and modify its charging actions accordingly. BatteryStuff Tech What are the AH (Amp Hours) ratings on the Optima batteries? Mike Excellent advice & removal of some of the mystery of how to pick the proper charger, and terms used. If you don’t prefer a mounted battery charger I would recommend the NOCO Genius 10 6v 12v 10 Amp Battery Charger and Maintainer. military or aviation batteries). 12 Volt Smart Battery Chargers: 5 to 10 Amps Section. Hat‘s Off To You!!! This type of battery charger is designed to charge lead acid and other types of batteries based on computer-generated algorithms. [24] On October 22, 2009, the International Telecommunication Union announced a standard for a universal charger for mobile handsets (Micro-USB).[25]. Mohan Cool article, saved me a lot of time. The charger may have temperature or voltage sensing circuits and a microprocessor controller to safely adjust the charging current and voltage, determine the state of charge, and cut off at the end of charge. I have recently upgraded my batteries to sears DH premiums 31m (AH 20/hr rate-100/capacity AH10hr/rate-92; CCA-1150; RC-205. I have a 5000W inverter and a 7500W gas-powered Kohler generator to produce AC when anchored/underway. 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