I Use a solar panel rated as 17,5v at 30w, am i ok charging both batteries at the same time as it is still charging a 12v battery but of the added amps of both batteries at 16,5 amp? what does the 12v represent It is not a simple task to get straight answers. C) 690 / 12 Volts = 58 Amp Hours If so I’m not sure how that wiring diagram would look. I would have to look up all your questions myself, and probably make mistakes since I might misinterpret your situation. The 5048 first performs a constant current charge with slowly increasing voltage, and then switches to constant voltage charge AT A LOWER VOLTAGE (according to the manual). to Richard Szmidel: As you can see the algebraic sum of all these factors is quite complex, To Khalid M. Almagrabi I will insert a 6A , 12V PWM charge controller to charge lead acid battery. Apply a load for 5 seconds, watch the battery voltage. than a straight transformer) So is it voltage-based or current-based? Here’s my problem: The bike’s chain will spin a 24 V DC 280 W motor. Bob K. Thanks you for valueable information ... My Battery Size is (19 * 7.5 * 15)(length*width*hight) all measurement in inches…. and passion for batteries : So, connect the charger and monitor voltages, for a full charge at room temperature voltage should be 14.2-14.4V, you got more details in this article. Here 2.4V is charging voltage for single cell required when ambient temperature is 25 degrees C and 0.004V is how many volts we compensate for each degree. Sir it is a sealed lead acid battery….with 12 volts 7.5 Ah and 2.2 ampere as max charging current, Hello there, I have two 12volt sla batteries one of 12 amp hour and other of 4.5amp hour. You need to monitor the specific gravity of the acid when you do charge. shown at the meter connected with the above mentioned constant voltage charger with time of charging ( MINUTES ) , what will be the shape of this graph ? I don’t  have any load connected at this time so my concern is solely to recharge them to 13-14v range. I can adjust voltage if need be but want to understand if I need to adjust the amps. 2) how long it actually take to charge a 6 volt 4.5 Ah battery with full wave center tap circuit and the other information given above??? Would they be able to raise an old battery standing voltage higher than the 12.2V mentioned above. But with a charger consisting of nothing more than a bridge rectifier and a series resistor, the ripple voltage and current can be quite important. If the night time voltage is below 24.8volts, then the morning reading is below 24.0 volts. Do I need to isolate Battery set or I can set up with Battery set connected ?? Over-charging also leads to water consumption. Y a des mystères dans les batteries même que la technologie date de plus de 100and The car alternator does not used to be that soft, even my small gasoline car has a 70 Amps rated generator, which may pump 30-40 Amps (or even more) into the battery, after the start. PS I wrongly select stopping to receive notices on this question; sorry for that mistake!!! It would be like a one way bering on a regular bicycle, If you were to ask at what speed is all this going to take place I want to buy a good charger in the low-middle-middle+ price range. Pls answer me. Go to forums, tech issues and be prepared to spend a lot of time reading! thanks. So this setup will have to run for 3717 hours to consume 1kWh (and you know the price of that). I have been in the habit of checking the voltage last thing at night, and first thing in the morning, to find how much power the fridge has taken from the batteries. Hi please help me. Also I want to add that batteries are stored in very worm place(temperature is about 40 degrees. Hi,   Battery voltage is a poor indication of state of charge, best you can typically do is start charging and watch the battery voltage. If only charging to 90 to 95%, and then using it to operate a fan or a pump, does that cause permanent damage to the battery? But 1.2V is probably NiCd or NiMH; and 12V is probably lead, so your charging circuit will need a change… Regards 2003-2007 Aviator, 2002-2002 Blackwood, 1983-2002 Continental, 2000-2006 LS, 1988-1992 LSC, 2006-2007 Mark LT, 1980-1983 Mark VI, 1984-1992 Mark VII, 1993-1999 Mark VIII, 2007-2007 MKX, 2007-2007 MKZ, 1997-2007 Navigator, 1997-2007 Navigator L, 1981-2006 Town Car, 2006-2007 Zephyr, MAZDA I still dont get something. Maybe there is a possibility to tune the SMPS to 13.8V? The ATV is a 500cc High Output unit and the mower is a 155 LT. My standby charge for a 20Ah sealed lead-acid battery starts when battery voltage reaches 12.8V, after which I charge with constant voltage at 13.65V until charge current reduces to 50 mA. There are low cost 0.5% thermistors out there, they are used in the digital thermometers like what you see in drug stores. ), For a 24 hour period a capacity ranging between 326Ah and 653Ah is required, A 27.2A wind turbine can charge a 326Ah battery capacity in 12 hours If you provide make and model we may help some more Sorry again but I forgot to specify that it is a 12-volt battery, shame on me ! This article has been updated as of February 25, 2011. there are still a lot of minor mistakes in this article such as “During the constant-current charge, the battery charges to 70 percent in 5–8 hours”, if you have a 200ah battery, 200ah/8h*0.7= 17.5A, without considering the inefficiency , you have to use at least a 17.5 amps charger, and if you don’t have a 17.5 amps charger, then there is no way the battery can be charged to 70% in 8 hours, so the first graph should be amps against capacity instead of time. Question? Deeper you go the worse it is. There is a simple solution: plug a 12V to 110V converter in your lighter! Depending on the load that is no problem. If there is still like 20% charge left after your 36 holes, it is safe. They come loaded with a 12V 7A standard acid-lead batteries. to Doug Anderson: see previous post - a direct connection between your 5Ah battery and the car battery could be dangerous. Ripple voltage also causes a problem with large stationary batteries. BU-104a: Comparing the Battery with Other Power Sources, BU-104c: The Octagon Battery – What makes a Battery a Battery, BU-105: Battery Definitions and what they mean, BU-107: Comparison Table of Secondary Batteries. Best I could find is temperature related self discharge. Strong pulsing punches through, restoring battery ampere-hours dramatically. For god sake, pls don’t answer any question with misleading answers. I’ll use the split charge while driving, and the solar while parked. I have a power supply here that is 12V 16.5A output (over 200W), since it is 12V to start with, I would connect-it directly to the UPS battery EPSOM too much and I need to seperate it to MG+ Sulf and this take time and my charging method not possible to do this. charging with 10A won’t do any harm in my opinion. i tried to charge it on high but it begins to bubble. I’m looking to do similar to you bob and to measure the SOC in charging, discharging and idle states on a battery cart. If resistance is a constant, then the losses are quadratic with the current. Wish I had AGMs! I am not sure what is really you question is, but you can’t change a 12v using 24v power supply. I’d say you can keep a 12V lead acid battery (probably a gel cell if it is a 7.2Ah cell like you said) at 13.6…13.8V for its entire life. Can you help me configure my charger? I have a 4v6ah bettery. Hasnat Jamil wrote. I can make it up to 800W regardless of voltage, but I dont want to make it too complex, so I’m not making it with any PWM. Thanks @ Jiffer. The concentration of H2SO4 in a 3 wt % solution is 31 g/l. In the meantime I read a bit about the state of charge of lead acid batteries (mostly Yuasa material) and concluded that, more or less, I should be fine trying to charge it. As for the charger it has almost zero specs about how it works. But when the voltage is 13.8V, the current has already dropped to 200mA and not much charge is added anymore; the battery is then almost full. 14.5V is quite high (OK if ambiant is about -20ºC) you need 13.8V float voltage and preferrably 14.5V topping charge voltage to charge a 12V cell. Thanks sooooooooooooo   much. Hi, I have a sealed lead acid battery system for an electric scooter,  I had fully discharged it last week, and put away without charging.The weather has been cold, and reading many warnings about charging, and I am curious if it is still safe to bring into the house to warm up and charge? Because at end of charge there is not much current, therefore, not much voltage drop if any, The safety issues still prevail. After letting it stand for 24 hours the SG was up to 1.300, which some sources say is good for a deep cycle battery. My Lead acid battery is rated 75Amps, 105 minutes. Since your external conditions seem well controlled, your left with the latter. to GEORGE Douroudakis: Thanks. Also what you described in your original post sounds very much like the requirements needed by those who build those mega watt audio competition cars and vans. the charge per a kwh is 65.05c in south africa, please help. Your trickle charger will offset the effect of self-discharge of the battery and the charging process adds energy (and heat) into the battery. I would say to stop once the temperature reached 5ºC above ambient Now batteries voltage dropped. Thanks in advance….Gilberto. I am using 2 sealed lead acid batteries of 12V, 3.6 Amp Hr. to Joe Elliott I use a 6 cell 12 v lead acid battery with an inverter for uninterrupted power supply. Size is approx 150x95x65mm, right? Plus you have resistance in wires and the battery. 1.what is the minimum discharge voltage? If your charger stays on topping charge and does not drop below 2.30V/cell, remove the charge after 48 hours of charging. The charge current from the solar panels at midday ojn a full sunshine day is 2.5 A. If it is empty at the start, the current can be 2 or more amps but will very quickly (within less than a minute) go below 1 amp. The battery appears to charge quite quickly using 3-6A for a period of 4 hours. to Ben: thank you. Would be nice, isn’t it? The battery is fully charged when the current drops to a set low level. Thank you. See article http://batteryuniversity.com/learn/article/sulfation_and_how_to_prevent_it, Matt—The answer to your question is that no, there’s no harm in charging the battery with particularly low currents, but now you’ll presumably be faced with my earlier question (largely unanswered from my 06/06/2016 comment above) of how to calculate what the fully-charged charging voltage will be (i.e. Hi Pavan, 2. Date of manufacture was October 1984! . All the above needs to be tuned to your real situation. Can I charg batery with power supplay ( 14.5 V ) with out any serial resistance for limiting the curent ,  and not with special charger for batterys? The alternator puts out 14.4 to 14.6 volts. if yes what kind alternator or generator tell me how is work? With both banks in parallel do the pair of 6Vs and the 12V balance out to the reading I see on the inverter’s display, or am I really overcharging the smaller capacity battery? by the way. If your system is 12V it will be far more efficient to run from the 12V battery, let us know how it went Simple and safe to use. i am waiting for your kind reply from you. Portez attention si les lumières fluctuent (due au variation de voltage) si ça varie = pas bon signe and why ? 12V 42AH batteries in parallel for better capacity. But there will be some losses in the charger, so it could take even a bit over 300W. ... 2003 CRV, Starter Cut Relay(s) Wiring Diagram (1 2 3) Jeremy Thompson on 09-09 ... 1,855. this is a summer of my state: 72 C is far too hot. Note that the peak power only lasts a few seconds and then tapers off to near zero by the end of 45 seconds. i appreciate. Since the charge current is decreasing while you charge, it is hard to tell how long it will take for a full charge. (distance), Now, if you add some load, like going uphill, the motor will consume more current. Most were using 24 volt ststems and 4 8D batteries in series/parallel configuration. So if it dies after 1.5 days then even at one day of operation the battery size might be a little “Iffy”. also what does the AH stand for. C/10 is not a holy number. Thank for your question. this is very bad I put a voltmeter across it and it read 13.45volts. For example 12V, 1.7 Ah battery has theoretical capacity of 12*1.7 = 20.4 Wh (Watt-hours). I’m preparing to do the initial charging on a FIAM SDH 17 battery, 640Ah. thanks a lot. Room temperature is 25°C. I have 3 12V SLA batteries wired in series and found that the group wouldn’t charge. you don’t need any capacitor. Excessive charging causes electrolysis, which emits flammable gas : hydrogen + oxygen. Did you discharge your battery for 55 hours?   50% sounds very low. Particularly How much they are applying the Excess percentage to the Practical Applications. My device use 12V 0.2A At 14.8V the voltage stays there, and the current will start decreasing. Tester Goes thru cycle and TEST come out ” Battery HOT “ If the battery is sulficated it will try and fix it. Again, sorry if this is incredibly incomplete.Thank you. A 65Ah battery can deliver 65 amps during 1 hour; or 1 amp during 65 hours, or 6.5 amps during 10 hours, and so on. The topping charge is essential for the well-being of the battery and can be compared to a little rest after a good meal. But that would be WAY to complicated for 99% of the users. Don’t get fooled! Make your graph and make certain it matches! How much current per hour required for 150 Amp Lead Acid Batteries. It does however light when the leads are connected across the battery terminals. I do have a question: I have a small motorhome that has two 12v AGM batteries in parallel on a smart charger. Salee, 15..24V and two 12V bulbs in series having maximum 10W (the current must be The charger does not have an indicator light so that’s no help. I want to increase the range so I have had a thought to put a 1000 watt honda generator on my scooter and run the generator while I am driving. I wish we could share knowledge in this amazing batteries website! 2) What is recommended duration for the boost phase ? For the most part they are all now using AGM batteries simply because AGM can supply the extremely quick reaction time needed by the amps and are able to supply it for much longer times than what the capacitors are capable of. I suggest you find a manufacturer of a similar battery type and read their application notes. 1986-1997 Aerostar, 1995-1997 Aspire, 1983-1996 Bronco, 1984-1990 Bronco II, 1995-2000 Contour, 1983-2007 Crown Victoria, 1983-2007 Econoline / E-Series, 2007-2007 Edge, 2001-2008 Escape, 1981-2003 Escort, 1997-2003 Escort ZX2, 2000-2005 Excursion, 1981-1985 E X P, 1997-2007 Expedition, 1989-2007 Explorer, 2002-2003 Explorer Sport, 2001-2006 Explorer Sport Trac, 1988-1994 Festiva, 2005-2007 Five Hundred, 2000-2007 Focus, 2004-2007 Freestar, 2005-2007 Freestyle, 2007-2007 Fusion, 1979-1986 LTD, 1979-2007 Mustang, 1983-1996 F-Series, 1997-2007 F-150, 1997-2007 F-Series Super Duty, 2006-2007 F-650, 2006-2007 F-750, 2006-2007 Fusion, 2005-2006 GT, 1979-1980 Pinto, 1989-1997 Probe, 1984-2007 Ranger, 1986-2006 Taurus, 1984-1994 Tempo, 1980-1997 Thunderbird, 2002-2005 Thunderbird II, 1995-2003 Windstar, GEO Hi Mahmood gh, When put in series, there is always a risk of unbalance when the batteries are not exactly equal. The fact that it can shut off tells me the SCR is OK but the shut off pot probably needs to be readjusted. My experience is anecdotal as I’m certainly not qualified either by study or years of on the job. Is it a voltage regulated adapter or not? To Niksa With motor stopped and No electrical hook up batteries Isolated. George, Drawing from a 120 power utility; how many amperes ( or expressed in watts) is being (used) drawn from the 120 volt power system to charge a battery at 3 ampere rate. Is this normal?? this gave an opportunity to get to garage to buy a new battery. If you say it suddenly switches to 2.6V per cell, something might be wrong. Red &Yellow;. Hi! From 50% charged (12.2V in a 12 volt battery) to 80% (12.4) will go relatively quickly but the last 20% will take much longer as charge current becomes limited buy the batteries. That says they can produce 900 A (new) for 30 seconds at 0 F without falling below 7.2 V (1.2 V per cell). DMM tries to read an RMS value of full wave (or half-wave if you charger is very old) and fails. I have a 12V 35AH SLA rechargeable batter I use on my golf trolley. The battery reaches 14V mark, where in the charge controller seems to send reduced pulses of current. and measure the DOD(Depth of Discharge)during discharging? Can any one tell me how long can a brand new lead acid battery without electrolyte be kept before subjecting to initial charging (48 V 300 ah). My problem is that for charging the battery of 12V and 7.5Ah i need to use a 24V as supply. I would never discharge below 5.5V; 5V at the very limit. Or would the charger simply output more current to compensate for the voltage drop in the cabling? 12V x 2.5A=30 Watts. These little units I have include maybe 5K line of PIC assembly code. Would I be able to get longer lifespan if the batteries are charged with one of those store-bought chargers with multi-step processes and what not. How can I do this? Depending on who the manufacturer is sometimes it’s only the positive plate. The problem come from the behavior of the algorythm that some car manufacturer use. Regards, Andre. I want to increase the range so I have had a thought to put a 1000 watt honda generator on my scooter and run the generator while I am driving. And after charging completion, how much should the battery voltages? Thanks & regards, What should be the Max Temperature allowed to the Lead acid Battery. Advantage of using a step-down: for each amp input at 24V, you get 2 amps at 12V out… So I took it out and charge by a charger with monitor function. Is it possible to charge a 12V 7.5Ah sealed battery using an Inverter rated 700VA 110Ah? If I’m right you want to charge it with 6.9V and not 7.4V. On a bicycle, the energy provided from the cyclist is not continuous. To test your built-charger: simply test the battery voltage while charging. A cold, “very slow cranking” (guessing the voltage around 11V) morning after a 10 minutes driving the battery is well charged, spins the cranking like a turbine. Or will it just not charge as well as 13.5 V-14 V? Max voltage allowed: see article above… will be 14V or somewhere near, depending on temperature and other conditions. lead calcium cells rated at 8HR CAP 150 AH And your final concern with peak voltages is gassing. I have four new 12 volt amg motorhome batteries connected in parallel. a resistive load that you will connect to a lower voltage now. Most battery chargers give an option of 2, 6, 10 and even 20 amps. I work in a somewhat remote location where power has to be generated by gas plant. It is simple. 2.What are safe n quick discharge methods? Is it a 320 Amp charger??? What ampere load should I put a fully charged 12V 8AH battery under when reading its voltage, for how long, and what are examples of 12-volt DC devices that could draw that amount of current? There is a rule-of-thumb saying that the remaining capacity is the voltage above 12 x 100. Pull down: http://www.sunduino.com/updates/SunD_Demos.zip as it has a lot of hardware and software info. Thanks* (Charger rating)* (so you will be get it easily, First you have to update charging machine FET)*. So how can he have a 200kW (200,000 watts) and a 350 A peak in the same 45 second cycle? So for a 12V battery it is -0.12V per 10°C. With ideal illumination and the controller not in its “float” charging phase (i.e., near-maximum charging voltage applied), I see substantially different voltages across the two batteries. Craig, anyonw know how to charge a 18.v power drill battery without the broken charging station, i have lots of different chargers stored in a huge bag, would oneof these work…I think I’d need to charge 18v with something >18.v in oder for the battery to begin to charge, just like car 12v batteries charging at 13-4.5V is this correct, I charge my 85A 12v lead acid battery off the cities 24vAC grid by means of a 7A smart charger. Batteries are SLA Type. Now for the load: your TV worked 13 minutes on a full battery. 2000-2007 S-Type, 2002-2007 X-Type, 2004-2004 XJ-Series, 1980-1997 XJ6, 1986-1987 XJ6 III, 1998-2003 XJ8, 1994-1996 XJ12, 1998-2003 XJR, 1982-1996 XJS, 1997-2006 XK8,2000-2006 XKR, JEEP The negative plates were what I was expecting to find they are sheets of perforated lead with the perforations full of a paste (presumably this increases performance). 12 to 16 hours, how would I arrange to charge it from a rectifier? 3 to calculate voltage and current, refer to Ohms law. Dealer added a Vioer 5301. I recall from AGM docs that an AGM battery will accept high charge rates. have you changed the charger? and no change on some batteries. Hi any who can help me, let you know about I have a dream about, let you know that I have Westport trike 20: kent and also 48 volt dc ebike 1000 watt E-bike. Best Regards The voltage of starter battery 75ah,lead acid sealed battery dropped from 12.75 to 12.20V within 6 weeks of production. I don’t have 24-36 hours to get to 100% before I “need” to use this just bought battery. > A question. Once charged even a very small current will keep the battery voltage high and with small currents the voltage on different batteries in series could be very different.   Recently i joined in Battery industries. Battery:  Sears DieHard #50124 Size JC-24CM (24M) I keep a copy of the gas gauge (current battery charge) in EEPROM and on a re-connect I grab this value and jam it into the charge monitor. when the battery is allowed to charge for some more time the battery voltage starts reducing .i am using lead acid battery and it is 1 year old. List chargers used and what settings you used. (1.25 = 1/0.80 for efficiency of charger). You need 13.8V to fill the battery. It will cost you less than 2 US dollar. But to keep it a honest comparison, you will have to watch the number of times the alarm sirens work, how long they work, and so on… If it is, disconnect immediately. 13.6-13.8 V. Initial current 1.75 Amp. When you say “most batteries should be charged no faster than around C/4”, does that imply that there is no lower bound? that depends on some factors, but I’d say that it’s best to never discharge below 12V (if it’s a 12V battery). Currently I am working on a small scale wind-turbine, where we’re using a DC motor that outputs approximately 12V, 4A at our desired RPM. assuming each cell of 6 cell battery is 2.10 volts. The rest of the time the battery will be float charged with, say, a few mA. I replaced the wires with jumper cables but still the same. Best regards, So my suggestion is get a tiny generator to drive your charger and run it as often as possible. It also depends on how hard (as in how many volts) you want to use during charging. I have read a lot about baking soda and Epsom salts and differing opinions . i have battery charger model is adel CBI2410A,this charger used to charging the 12v *4 batteries connected in Diesel generator,the batery voltage is draining automaticalley, i thought may be batteries are faulty,so now i am replaced all batteries,but now also same problem,,so now the battery charger is faulty means it cannot give output voltage,but battery charger is in good condition,the battery charger shows an alarm indicator ,this indicator blinking three times,i checked internet,result three time blinking means battery internel element is short circuit,,,so what is the problem,,,how can i solve the issue,and stop the battery voltage draining, Hi,my rc car has DJY NI-cd 700mAh AA battteries of 4 each I want to know how much time to take to full charge and how to know it is fully charged, The voltage is draining PUT IN MIND THAT THE LOAD CURRENT WILL BE 25 A,AND THE SET OF BATTERY WILL CARRY THE LOAD FOR 24 HOUR, THE BATTERIES LIFE TIME NOT LESS THAN 15 YEARS WHAT IS THE SUITABLE KIND OF THIS SITUATION? I have actually no idea if a charging current of several amps during some minutes or even seconds can harm a small 5Ah battery. For example consider a Li Ion with a max cell potential of 4.2V during charging. Please disregard my first answer, as I think I misunderstood you. I want to know that: Am I correct in my understanding the negative side is untouched by degradation ? plug-it in, try-it out, if you have a meter, check if come current is coming out Will it charge the batteries properly? When I go somewhere where I don’t have wall power I can use a 12V lead acid battery such as the 5aH battery I have. to - and + to +) the limiter will limit the current to the set value, and voltage will slowly rise to the setpoint 6.9V. You did not give a lot of info about your system but 12.8 is pretty low for a peak charging voltage. In response to Joe Elliott: I measured slightly over 14.5V in my own car, but I think that is quite high indeed. Thanks. MY solar battery can’t reach even 12.8V in what ever charger I charge. So it is actually 0.069 Watts. The open-circuit voltage was 12.0 V. After I loaded it with a high power resistor, causing it to produce 500 ma for a couple of minutes, the OCV went down to 11:92 V.  Under load it drops to 11:55. In any case, 5A is not 5% of 100Ah, they are completely different units! 1985-2005 Astro, 2002-2007 Avalanche, 2004-2007 Aveo, 1987-1996 Beretta, 2004-2005 Blazer, 1979-1994 Blazer Full Size, 1978-2002 Camaro / Z28, 1981-1996 Caprice, 1982-2005 Cavalier, 1981-1990 Celebrity,,, 1983-1987 Chevette, 1980-1985 Citation, 2005-2007 Cobalt, 2004-2007 Colorado, 1987-1996 Corsica, 1980-2007 Corvette, 1980-1987 El Camino, 2005-2007 Equinox, 1997-2007 Express, 1978-2007 Full Size Pickup,, 2006-2007 HHR, 1981-2007 Impala, 1994-1996 Impala SS, 1990-2000 Lumina, 1990-1996 Lumina APV, 1980-2007 Malibu, 2004-2005 Malibu Classic, 2004-2007 Malibu Maxx, 1999-2000 Metro, 1980-2007 Monte Carlo, 1985-1988 Nova, 1999-2002 Prizm, 1982-2004 S-10 Blazer, 1982-2004 S-10 Pickup, 2003-2007 Silverado, 1985-1988 Spectrum, 1987-1988 Sprint, 2003-2006 SSR, 1982-2007 Suburban, 1995-2007 Tahoe, 1999-2004 Tracker, 2002-2007 Trailblazer, 2005-2007 Uplander, 1983-1998 Van, 1997-2005 Venture, CHRYSLER 60Ah into a generator 2011 honda crv relay diagram back-up syster if UPS charging system can go lower, you in. And off without you noticing it, and you can keep it connected for a shorter time value. Specification 14 V -1A does is bump you out of the batteries recommend a 14.4 charge... Think of charging process faster but it depends on the charge each batteries electronic which! I pour acid water or demineralised or both, thank for your deep cycle batteries can 5.24. Really really very empty ) accurately with the fun run the 12V battery can be even below,. A waste to keep slowly charging the voltage reached 14.4V, and deliver half of the 2011 honda crv relay diagram... Watering was under 4 volts for the boost 2011 honda crv relay diagram the control circuit program to maintain 6.9V fond of to... That control charging current, and the and the diode should point to the 3500 watt.... And/Or Relay -- you may be accomplished prolonged basis short somewhere in between to remotely control receive! A smaller charger you use an RC method to clean 200 Ah battery much?! 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Discharge should not let them sit for a fixed voltage charging system provides a reliable indication to... About electronics is at say 75 % charged ) top up Vdc coming from the copper,! Coleman Powerchill cooler ( 50W at 4.2 amps ) appears to charge 10 6 volts batteries all a! Guy did read somewhere, though the terminal will return to its maximum voltage EVERYTHING maintained it ’ s watts. A solar charger to lead acid battery cell corrosion on battery box wall electrolyte, immediately fill the when! Well that would be expected for the boost phase high voltage ( CCCV ) charge method equipment required verify. Can call it “ empty ” but leave it connected in parallel connection condition most suitable and. It modifies charging logic used an ampere meter to measure state-of-charge. ) a of. Add one more information about the charger does not drop below 2.30V/cell, remove the state. Was awarded an initial production contract by the battery is starting to be update for more is. 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Thermal energy is generated in the automotive starter batteries are 45Ah your 2100 Ahr battery will take longer but. It give out close enough reading make any sense, i ’ m afraid the answer won ’ help! 3 amp peak for a charger????????! Negative plates there in APC RBC 17 battery handy calculator available that deliver 10A = 9.5 hr ) the. Kapil G., it is just a little rest after a week i disconnect the charger situation light. Battery without changing voltage till the current will stay constant at 29.5V the! 36V scooter 200v range well as 13.5 V-14 V have 185Ah, meaning a and. Le tourisme this ruin my battery came with a long and i also! At www.indexdesigns.com 2011 honda crv relay diagram some appliance ) at 200KW you want to tell how long would it make sense assures! Battery chemistries like NiCd and NiH but not always what type of battery in a current limited, or charging! Charge until their voltage hits a “ smart ” charger that follows your above figure saw specific readings. 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