Text (619) 315-5604 SanDiegoBattery@gmail.com, Affordable Car Battery for Sale San Diego, Total Power Battery Replacement in San Diego, #How To Wednesday Videos Deep Cycle Battery San Diego, How to Convert to 6 volt Batteries for Dry Camping, High Performance Jeep Batteries from Deep Cycle Battery. An incandescent 12-volt ceiling light bulb has a draw of 1.5 amps. The information is very useful for me. 20*1/3600 + 0.1(3599)/3600 = 0.1044 amps average current. Your battery capacity is 2 x 235Ah@6V = 235Ah@12V. Reviewed in the United States on July 4, 2022. *Up to 900W solar input rate and 500W adapter input, 1400W in total. On the clock, Kenny dives deep to discover the practical limits and comparative differences for all kinds of tools. SEER = (1 EER100% + 42 EER75% + 45 EER50% + 12 EER25%)/100, Total Heat (BTU/hr.) Someone told me that two 6 volt batteries in series is better than two 12 volt batteries in parallel. There is a limit of two spare batteries per person for the larger lithium ion batteries described above (101160 watt hours per battery). Reviewed in the United States on July 4, 2022. Be warned the cooling fan at that rating is likely to be loud. In this post, we will look at how to determine the electrical demands of your 12-volt battery system by learning about amps and amp-hours. In todays world of Internet news and online content, we found that more and more professionals researched a large majority of their major power tool purchases online. (Propane BTU Calculator), 4 Highest Efficiency Heat Pumps In 2022 (Highest SEER + HSPF), 500-Gallon Propane Tank Dimensions (Length, Width, Weight, etc. It is supposed to run a stock well that is 480 Amps. Thanks for your help. If we turn this around and ask ourselves what size 12V battery do I need for 1 kWh, we can calculate that as well using the electric power equation: 1 kWh is equal to 1000 Wh; we just insert 1000 watts like this: That means that we need an 83.33 Ah 12 battery for 1 kWh. Reply. i have already purchased a 12v 220v inverter which is rated 1500wattsmy questions aer: what rating of one 12v battery (or a system of combined batteries) do i need to achieve this target.Also , what specification of solar panel charging system can charge the battery in a very short time like 2 hours of sunlightwe do have intense sunlight in my region. For Dave, home is where you park it, the more remote the better! If your appliance actually uses 340w while running continuously for 24 hours, then 340w * 24 hours / 12v = 680Ah / day which would be very bad. This is difficult to wrap your head around but is often the reason for claiming the battery does not produce the rated capacity; Rated Ah capacity is specified to be over a 20 hour, full discharge. That is, 40 Ah capacity (1/2 rated battery capacity) divided by 20 Ah per day. No propane use, period. The appliance actually runs only a fraction of the time, this fraction is called the duty cycle. This is often referred to as the capacity of a battery. Copyright 2008-2022 Pro Tool Reviews, LLC. A typical deep-cycle RV battery will be rated around 80 amp-hours, which in theory would supply one amp for 80 hours. Yes. Makita Black Friday and Cyber Monday Deals Offer Steep Discounts Many of the best 2022 Makita Black Friday deals and [], As more brands enter into the high-capacity lithium-ion battery market to power heavier equipment, such as zero-turn lawn mowers, theres [], The Greenworks Commercial OptimusMC Trailer Gives Your Crew All-Day Power One of the biggest challenges facing lawn care Pros who [], The invention of keyless drill chucks was a game-changer in making the best cordless drills easier to use. The pressure switch cuts the power long before the rotor stalls. A LiFePO 4 State of Charge (or SoC) expresses the present capacity of the battery relative to its total capacity. How to Calculate the Required Time of Battery Charging. Again to calculate the output voltage its just a case of adding the voltages of all the individual batteries together. 2500 mAh AAA battery will run at 2.5A for 1 hours, at 1000 mA for 2.5 hours, or at 100 mAh for 25 hours. Charts that detail this effect for different discharge rate can be used for greater accuracy. Additionally, because a pump shuts itself off when it reaches pressure, it is important to note, it only consumes power when it is actually turning, not just because power is applied. 100 Amp-Hours at the 10 hour rating. Ah, Ampere Hour or Amp Hour all describe the same characteristic of a battery how long it will last when connected to the item it is powering. BatteryStuff Tech240VAC doesnt change the total power of the system. Required fields are marked *. If you must use dislike batteries you should keep them isolated and draw them down separately. That is also wired in series. For example, a 200Ah capacity battery drawn down over 20 hours, 200Ah/20h = 10A. Connecting four amp hour batteries in series Four ampere hour batteries connected in series. Battery terminals (usually the ends) must be protected from short circuit (i.e., the terminals must not come in contact with other metal). The industry standard hour rate is 20, but that doesnt mean all manufacturers follow it. Whats the difference between Ah and kWh? It is not a good idea to have dissimilar battery pairs eg 80 amp/hr and 70 amp/hr You will only have 140 amp/hrs as the higher amp/hr battery only charges to the lower. That keeps the voltage at 18 but doubles the amp hours to 5.0. Jonathan BurnsHi tbere i am looking to no how long my 240 appliances will last for with 2 110 batteries working of a 1500watt inverter drawing 980watts in total a total of 88 odd amps of dc how long will my batteries last and what size of solar panel would suit to maintain my batteries as i have only a splitt relay wired as a charging system. Now that we know how significantly battery amp hours affect power, the application side is pretty straightforward. Bill MertzGood morning. The latest Lifestyle | Daily Life news, tips, opinion and advice from The Sydney Morning Herald covering life and relationships, beauty, fashion, health & wellbeing If you leave the light on (burning) for one hour it will consume 1.5 amp hours of battery power. Shop products from small business brands sold in Amazons store. Actual test data is hard to come by without doing the test yourself. If you leave the light on (burning) for one hour it will consume 1.5 amp hours of battery power. Ray tracing, among others, is finally coming to GTA Online players on the PS5 and Xbox Series S/X. 3.0 out of 5 stars Battery doesn't last 24 hours. Read latest breaking news, updates, and headlines. Calculating the actual expected life of a battery in any given situation can be done with the Peukerts Law calculator. Note some graphs use C instead of A. DaveVery useful. drawing 10 amps from a 10 amp hour battery, or 1C) you will only get half of the rated capacity (or 5 amp-hours from a 10 amp-hour battery). The total number of batteries needed is the product of the number of series batteries (to build up the voltage) and the number of parallel batteries (to build up the capacity). BatteryStuff TechUnfortunately, no. amzn_assoc_tracking_id = "protoorev-20"; how to multiply voltage times amperage to determine watts, Get Free Weekly RV LIFE Updates in your Email Inbox, A Guide To Moochdocking This Holiday Season, 5 RV Audio Resources For Listening On The Road, Visiting Desert Shadows RV Resort In California. First of all, for those of you who commented, thank you for the maturity you showed in the tone of your comments. I have a full size Whirlpool refrigerator that is AC in my 2018 Thor Challenger. amzn_assoc_ad_mode = "manual"; Understand, this is only the AC power and will not include DC inefficiencies of the inverter or rapid drawdown of the batteries. For example, if you want to use a lead acid battery for many cycles you shouldnt run it past 80% of its charge, leaving 20% left in the battery. Get information on latest national and international events & more. State of Charge is given in percentage. *Expandable with up to 2 battery modules. BatteryStuff TechAt 120VAC @ 2.9 amps your are drawing approximately 32 Amps a hour out of a battery. For example if you draw at 1C on a lead acid battery you will only get half of the capacity that you would have if you had drawn at 0.05C. A rule of thumb is that for a 1 hour discharge rate (i.e. My battery bank is 3000Ahs 12 volts. The Makita 2.0Ah battery uses just a single row of 5 cells. Your email address will not be published. Solved Example of 12V, 120 Ah. to facilitate maneuverability and portability As an Amazon Associate, we may earn income when you click on an Amazon link. . Travel across vast fields, through forests, and to mountain peaks as you discover what has become of the kingdom of Hyrule in this stunning Open-Air Adventure. The 5.0Ah battery took 10.28 seconds while the 2.0Ah pack needed 12.08 seconds. In this scenario you get an additional 1hr 41min of run time due to the less amps being drawn out of the higher voltage battery pack. No. Next I would suggest using our Calculator | Sizing a 12 Volt Battery to a Load, as it depends on how long you want to run that load for. 100% SoC means the battery is fully charged, while 0% means fully discharged.. You can calculate it using: State of charge (%) = As you move into medium and heavy-duty applications, the difference is substantial and a higher capacity battery is the way to go. The tougher the task, the harder it is for 5 cells to maintain the same power level as 10 cells. It can run a 1000W unit for 2.34 hours. amzn_assoc_title = ""; of course both inverters a pure sine. We found that amp-hours affect runtime in a big way. In essence, it tells us the capacity of a battery; that is, how big a battery actually is or how much juice the battery has. kWh is indeed a unit of energy, but it it isnt (kilowatts); its kilowatt hours. For starters if the batteries are wired together in parallel ALWAYS use like batteries. Technically, it can power electrical devices under such situations, but please avoid charging it. That piqued our interest. The first row of the table above could also be written as: Dividing the Amp Hour figure by the hour rate will tell you what device the battery can power for that time period. Your device is meant to run off either a 48v power-supply, or a 48v battery pack. SE is 2x faster and has a 30% larger display than Series 3. If you know the watts instead of amps, follow the following procedure. The calculator also provides the wattage rating you are pulling so you can properly size thepower inverter you need! However, I am still interested in repurposing this setup. There is a solar article that goes well in depth on these calculations if youre interested in the techie type stuff:Solar Info: The Down Low on Everything Up High, Find Your Battery Choose Your Inverter. See Which deep cycle AH battery for more on this and other ways you can be mislead. Trafiguras shareholders and top traders to split $1.7bn in payouts ; Council reviewed 202mn loan to THG but lent to ecommerce groups founder instead You state, incorrectly, that 1AH @ 12V = 12kWh. Because in real world even a What is the correct explanation of why requires 5 DC amps per each AC amp? Is battery disconnect switch necessary. TECH504 watts / 4.8 Amps = 105 VAC. In this case a 12v 200 AH battery pack could withstand a 10 amp draw and last only 10hrs, but the 24v 200 AH battery bank lasts 21hr 41 min. The amperage is the same as for one battery 4.5 Ah That is also wired in series. I would use our Calculator | Sizing a 12 Volt Battery to a Load, and just be sure to put in the DC amp draw of 32 Amps, and not the AC amp draw. They are rated in watts or amps while running. Here again, the 5.0Ah battery showed its ability to deliver higher power to finish the task, taking 11.26 seconds compared to the 2.0Ahs 14.60 seconds. gallons per minute, I stumbled upon this article because Im a mom who needs and also wants a portable battery-powered and operated power washer system kit. The AC200 Max can now take one module via its solar input port with a converter cable for extra capacity! A running consumption is likely ~200w. Correct amp-hours for temperature. The key is to use the watts you know to calculate the amps at the battery voltage . *Up to 6,144Wh with 2B230s, or 8,192Wh with 2B300s *2,200W pure sine wave AC inverter, Surge 4800W. Normally, A 12-volt travel trailer battery can last about two to three days, on average. By calculation, 10A is the maximum rated current for full capacity. You could place a car audio capacitor inline between the inverter and the amp just like you would on a vehicle. The Makita 2.0Ah battery uses just a single row of 5 cells. A handful of media personnel picked up Diablo 4 for a couple of hours and struggled to put it down. Amp hr ratings on batteries are close to true when brand new. Most of these can run off of a 15 amp breaker, with the exception of the 75 amp needing a 20 amp, and the 90 or 100 amp needing a 30 amp breaker. Appliances are generally not rated in terms of watt-hours or amp-hours because it would depend on how long they were running. These batteries would perform more than 2 times better. Solved Example of 12V, 120 Ah. air), Latent Heat (BTU/hr) = 0.69 x CFM x gr. 2. A disconnect switch is not necessary, but is convenient for keeping your batteries from parasitic loads (gas detector, clock radio, etc) while in storage. Very slow quiet speeds are used when demand is low such as during sleeping hours. by Ray Ampoloquio published December 7, 2022 December 7, 2022. , 340 / 24 = 14.2 watts per hour / 12v = 1.2 Ah. Buy EBL 8-Bay Rechargeable Battery Charger for AA AAA NIMH NICD Rechargeable Batteries Upgraded 808 Individual Charger: 1.5 - 4 hours; 1 to 8pcs AA 1300-2800mAh: 1.5 - 8 hours; Trickle Charge Mode. Not the one hour that many people believe. How to Use a Keyless Drill Chuck | You Might Be Doing it Wrong! Thats a very important k to be throwing around, please fix this. The lists do not show all contributions to every state ballot measure, or each independent expenditure committee formed to support or Rarely are the electrical requirements of the 12-volt appliances (water pump, furnace motor, lights, etc) expressed in any form other than amps. Batteries must be protected from damage. In general, a two to three-day RV battery life is sufficient for most RV owners. Amazon.com : Blue Sea Systems 7611 AUTO CHARGE RELAY 120A 12/24V : Automotive Battery Chargers : Sports & Outdoors 120 Amp continuous rating ; 12/24V DC auto ranging voltage input ; Blue Sea makes great quality products with clear install diagrams and instructions. This is a big effect in alkaline, carbon zinc, zinc-air and lead acid batteries. What Does Ah Mean On A Battery? The second row tells us the battery can power a It replaces lead-acid batteries and provides twice the energy because all of its energy (amp hours) can be used instead of only ~50% like lead-acid batteries provide. Gopsnice tool thanks for your information .can you explain about %loss calculation. No. Struggling between power and flexibility? Two B230 for 6,144Wh capacity. In this case, 15% loss, or 85% efficiency. document.getElementById( "ak_js_3" ).setAttribute( "value", ( new Date() ).getTime() ); See our Privacy Policy and Terms & Conditions. As far as what inverter to purchase You need to account for your surge draw which you state is 13.9 amps 120VAC x 13.9 Amps = 1,668 Watts! But theres more to the story. As with anything electrical, there are exceptions to every rule of thumb, but the basic information shared below is applicable in most RVing situations. Saying that it requires 5amps DC to 1 amp AC is not a correct statement. Watt-hours = watts * hours = 250 watts * 5 hours = 1250 watt hours, Account for the efficiency of the inverter, say 85%, Watt-hours = watts * hours / efficiency = 1250 / 0.85 = 1470 watt-hours, Since watts = amps * volts divide the watt hours by the voltage of the battery to get amp-hours of battery storage. by Ray Ampoloquio published December 8, 2022 December 8, 2022. The blower motor and related 12-volt components of your propane furnace draw 7 amps while running. So each set only asks its cells to give 10 amps each. Temperature ranges for AC200MAX are: And especially for the RV enthusiasts the AC200 MAX has a specially designed built-in 30A NEMA TT-30 outlet and a 12V 30A super powerful DC outlet. We started testing how much battery amp hours affect power by drilling with 1-inch Bosch Daredevil High-Speed Auger Bits. Thats because theyre using different cells. If you leave the light on (burning) for one hour it will consume 1.5 amp hours of battery power. A LiFePO 4 State of Charge (or SoC) expresses the present capacity of the battery relative to its total capacity. We will have 400AH lithium in the bank, can you help me understand what that will operational life that will provide before recharge? AC200MAX ONLY accepts BLUETTI B230 or B300 expansion batteries. This definition applies to other battery chemistries. In the 5Ah battery, there are two sets of cells, and the parallel connection between them does make the current additive. Battery Capacity 18 Amp Hours : Amperage 1100 Amps : Peak Output Current 1100 Amps : Manufacturer Clore Automotive : Model JNC550A : Item Weight 22.7 pounds : Product Dimensions 12 x 8 x 12.8 inches : Item model number JNC550A : Exterior Drop-resistant housing : Manufacturer Part Number JNC550A It's now a week or two later. Step into a world of discovery, exploration, and adventure in The Legend of Zelda: Breath of the Wild, a boundary-breaking new game in the acclaimed series. It replaces lead-acid batteries and provides twice the energy because all of its energy (amp hours) can be used instead of only ~50% like lead-acid batteries provide. In my case, Im factoring in the PSI and fl. The following information was copied from PowerStream.com, So you have an appliance or device like a pump for example and your want to know what size battery you need? If you truly want to know, you would need to buy a wattmeter such as a kill-a-watt brand or similar, that can sum all power drawn over a given time period. T = 10 Hours. The total appliances in the house is 800 Watts. Ray tracing, among others, is finally coming to GTA Online players on the PS5 and Xbox Series S/X. Long-term placement will make the internal structure loose, it is recommended to place the machine upright. The average current would be calculated as follows. Battery Cycle life considerations, It isnt good to run a battery all the way down to zero during each charge cycle. (500W 40kW), Natural Gas BCF To MMBTU Calculator + MMBTU To BCF Calculator, MMBTU To MCF Conversion: Calculator + Chart (Natural Gas), MCF To MMBTU Calculator + Chart For Natural Gas, MCF To Therms Conversion Calculator + Chart (Natural Gas), Therms To MCF Conversion: Calculator + Chart For Natural Gas, How Much Electricity Does A Mini Split Use? My question is: Would, or could, with these charging devices, can you give an approximate length of time I could expect my batteries to last in the boondocks (or anywhere else for that matter)? Batteries must be protected from damage. to facilitate maneuverability and portability 100 Amp-Hours at the 10 hour rating. For example, use it in an RV to power slide-outs, lights, microwave, TV, AC, etc and get 2X the camping time on a single charge than a lead-acid battery. Created on January 18, 2012, Last Modified on November 4, 2021, For Questions and Tech Support, please submit your question with our, Read Knowledge Base in RSS news reader with. However, in reality, if you discharge a lead-acid battery (what you likely have in your RV) more than 50% of the rated capacity you will greatly shorten the life span of the battery. So, as weve seen above, a 4 Ah battery using the 20 hour rate gives us: The relationship between the devices amperage and how long the battery will last do not make a straight line on a graph. Furthermore, inverter inefficiency of ~90% reduces your usable (120V delivered) capacity, 117.5Ahx.9 = 105.75Ah. kWh or kilowatt-hour is a unit of energy, multiplied by hours.. Buy EBL 8-Bay Rechargeable Battery Charger for AA AAA NIMH NICD Rechargeable Batteries Upgraded 808 Individual Charger: 1.5 - 4 hours; 1 to 8pcs AA 1300-2800mAh: 1.5 - 8 hours; Trickle Charge Mode. No. Some battery chemistries give much fewer amp hours if you discharge them fast. SamboThanks, this was very helpful, but mainly to give me an idea of the current draw on the batteries so that I can work out what circuit breaker/fuse to get. Great article! It is a 2000 watt amp when connected to a 1 ohm load. If the amp pulls around 200 amps DC to create 2000 watts at 1 ohm. This battery life reflects normal electric appliance usage, including lighting, water pump, phone charging, running the propane refrigerator, and others. Johni wish to power a series of appliances whose total sum of wattage is 720 watts for a minimum of 3 hrs non stop. ZukiThis was exactly what I was looking for. The lists do not show all contributions to every state ballot measure, or each independent expenditure committee formed to support or 725 watts at 120 volts is 6 amps 7250 watts at 12 volts or 60 amps. When you have two batteries say 1- 80ah and 1-70ah would that mean a total of 150 ah and half of that is usable (75ah) before being hard on the batteries? air), Sensible Heat (BTU/hr) = 1.1 x CFM x t (std. How to Calculate the Required Time of Battery Charging. How to calculate kWh from Ah? If the duty cycle is %10 then you would be down to 68Ah / day, if the duty cycle is %1 then you would be at 6.8Ah / day. From the above equation it is clear that to calculate battery capacity (mAh), we have to know the current in mA and time in Hour. BatteryStuff TechAs you can see by the calculator that would draw about 460 Amps an hour out of a 12v battery pack! From the above equation it is clear that to calculate battery capacity (mAh), we have to know the current in mA and time in Hour. Shop products from small business brands sold in Amazons store. Wattage is the total power, which is comprised of voltage * amperage. You can easily swap battery packs for continuous power use, and the system can hold two batteries at once. In summary, battery storage sizing is accomplished as follows: 1. amzn_assoc_search_bar = "true"; Buy Truck PAC ES1224 3000/1500 Peak Amp 12/24V Jump Starter: Jump Starters Powered by twin high-performance ES Series batteries, the ES1224 delivers 3000 Peak Amps of jump starting power in 12 Volt Mode and 1500 Peak Amps in 24 Volt Mode for heavy-duty starting in even the most extreme service situations. Knowledge is transferable to larger storage batteries with solar panels thank you! RAJAVARDHANA NAIDU.Gspan class="caps">VERY NICE TOOL. How long can it run using an inverter, a 100 amp hour AGM battery rated at 1200 watts? Bill. The formula suggests it would ideally require around 10 hours for the battery to get optimally charged at 10 amp rate, but for a real battery this may be around 14 hours for the charging, and 7 hours for the discharging. TimWhen talking about current, for example if a device is drawing 3 amps, does that mean 3amps per hour? State of Charge is given in percentage. Thanks. BatteryStuff TechVolts x Amps = Watts - If your looking for the wattage you can use this calculation. If you attempt to draw 20A over 10 hours, theoretically the same amount of power, the battery will likely be exhausted at 8.5-9 hours. Now that you know how long your batteries are likely to last, you can plan accordingly for your next dry camping adventure in RVing! However, you actually get a bit more than that. Read more about the relationship between voltage and amp-hours. Im going to the trip soon but I scare that my RV batteries not as good as befor. Breaking News. I have calculated that I need 300 Amps DC per day. What Is Amp Hour? 1 year warranty. 100 Amp-Hours at the 10 hour rating. 1,400W Max. Its much easier for 10 cells each working half as hard to keep the power level up. If you inputted 110VAC at 0.68 Amps your at about 75 watts, which equates to 6.88 DC amps. An incandescent 12-volt ceiling light bulb has a draw of 1.5 amps. 3. Additional Details . by Ray Ampoloquio published December 7, 2022 December 7, 2022. Your mobile power center at home or on the way. State of Charge is given in percentage. Adam PennyLove it. Need 240V power source? BLUETTI guarantees that we will refund you the difference if you find a lower price from us within 30 days of your purchase. This calculator will dynamically calculate the kWh from input Ah and voltage: You can find a similar calculator that converts kWh to Ah here. Batteries must be protected from damage. Ok, if the current drawn is x amps, the time is T hours then the capacity C in amp-hours is, For example, if your pump is drawing 120 mA and you want it to run for 24 hours, C (amp hours) = 0.12 Amps * 24 hours = 2.88 amp hours (keep going, not done calculating yet), Step 2. Cheers. After this time it will have a voltage 5.25 and a capacity of 4.0Ah. Now to answer you question yes you would have 150 total amp hours capacity, but only 75 amp hours usable (50% of rated capacity). If you are using a different voltage battery the amp-hours will change by dividing it by the battery voltage you are using. EmmanuelI have a 12v car battery and I also have 240v electric motor. Since watts = amps * volts divide the watt hours by the voltage of the battery to get amp-hours of battery storage. Discover more about the small businesses partnering with Amazon and Amazons commitment to empowering them. You see, the 5.0Ah pack actually has more than double the amp hours of the 2.0Ah battery. 1 amp hour battery will produce an electrical current of 1 amp for 1 hour (at specified voltage; usually 12V for batteries). Buy Progressive Dynamics PD9260CV Inteli-Power 9200 Series Converter/Charger with Charge Wizard - 60 Amp: Progressive Dynamics PD9160ALV 12V Lithium Ion Battery Converter/Charger - 60 Amp. What is true is that in a 13volt (12 volt nominal) DC system, ran through an inverter that is about 80% efficient, the total power useage is approximently 78 watts, which would be a little under 1 amp at 115VAC. So if I have 1 80ah battery and I am using 20 amps a day it would last 2 days? A 170Ah 12V battery holds 2,040 Wh. Below are lists of the top 10 contributors to committees that have raised at least $1,000,000 and are primarily formed to support or oppose a state ballot measure or a candidate for state office in the November 2022 general election. Live news, investigations, opinion, photos and video by the journalists of The New York Times from more than 150 countries around the world. But by how much? But theres more to the story. If you are using a different voltage battery the amp-hours will change by dividing it by the battery voltage you are using. 4x BLUETTI PV200: 3hrs. View the latest business news about the worlds top companies, and explore articles on global markets, finance, tech, and the innovations driving us forward. Ray tracing, among others, is finally coming to GTA Online players on the PS5 and Xbox Series S/X. On top of that, we also specify how long will such a battery theoretically (without the voltage drop) last if it has a 1 amp current output: For example, a 50 Ah 12V battery has a 0,60 kWh capacity. Hope this helps a bit. It's now a week or two later. by Ray Ampoloquio published December 7, 2022 December 7, 2022. After this time it will have a voltage of 4.8 and a capacity of 2.5 Ah. Your at 48v 165ah battery bank Series wiring you add the voltage Parallel wiring you add the amps. Oh yes, forgot TV, wifi, computer. BatteryStuff TechIn reverse it would be a charger vs an inverter, however if the charger runs off 240VAC and draws a 100A then it will put out approximately 552A on a 48V system, but it might vary depending on the efficiency of the charger. Note that amp-hours are commonly abbreviated as A.H., Ah or similar. If you burn it for 2 hours it will consume 3 amp hours of battery power, etc. I doubt your refrigerator actually draws 725W continuously. Rsidence officielle des rois de France, le chteau de Versailles et ses jardins comptent parmi les plus illustres monuments du patrimoine mondial et constituent la plus complte ralisation de lart franais du XVIIe sicle. For example, use it in an RV to power slide-outs, lights, microwave, TV, AC, etc and get 2X the camping time on a single charge than a lead-acid battery. First we are told the temperature of the environment in which the battery was tested. Want more? 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