Time of charge or discharge in minutes (run-time) = min Calculation of energy stored, current and voltage for a set of batteries in series and parallel Number of batteries in a serie = elements Number of series in parallel = series Total number of batteries : Voltage of the storage system = volt Current of the storage system = ampere Remaining charge (%): Specify the required remaining charged. This shows that the cycle life of LiFePO4 battery is about 4~8 times that of lead-acid battery. Ultramax LI42-24, 24v 42Ah Lithium Iron Phosphate LiFePO4 Battery- 50A Max. Battery Type. A 12 volt fridge freezer will run between 25 and 50 hours on a 12v, 100 Ah (amp hour), LiFEP04 (Lithium Iron Phosphate) battery. Battery information. Keep in mind that you would probably come across several battery run calculators using a different formula from the one mentioned above. Ft.) fridge and about 9 hours while running a medium size kitchen fridge (14 Cu. C-rate of the battery. For example, if you want to use a lead acid battery for many cycles you shouldn't run it past 80% of its charge, leaving 20% left in the battery. Before using the calculator, make sure to go through the guidelines thoroughly so as to use the calculator rightly. In this case, please select 12V for the voltage of the solar battery. That's because an 800 W air conditioner on 240V requires fewer amps than an air conditioner on 120V. Battery design. The best quality inverters are about 95% efficient, so you lose 5% running time as extra power is needed to power the inverter electronics.. A 200Ah lead-acid deep-cycle battery should only be discharged 50% in order to maximize battery life, so only 100Ah is available for use. Battery Size: I have this (app) application and I need it to run for (X) hours, what size battery will I need? Wh = Ah x Voltage, where 1kW = 1000W. This is the current I used for either charging or discharging your . Custom batteries. For example, you may have a 24V solar array and a 12V solar battery bank. As we can see, because the amp draw is halved, the battery life is increased. After this, your battery will be fully depleted, So if you have a lead-acid type battery then the runtime will be half See a list of all of the Official Weather Advisories, Warnings, and Severe Weather Alerts for Gunzenhausen, Bavaria, Germany. . Partition the battery life, in a moment or two, by 3,600 to change over it to hours: 7,875/3,600 = 2.19 hours, or roughly 2 hours 10 minutes. For example, if a gadget uses a 2500 mAh battery, a 10000 mah battery will last roughly 4 hours. Based on this, we can now calculate how long will a 200 Ah battery be able to power an 800 W 240 V air conditioner: 200 Ah Battery Life = 200 Ah / 3.33 A = 60 hours. The circuit can keep running for 7,875 seconds. The runtime calculation is different from it because it has a different formula for calculation. in short, a 12v 50Ah Lithium deep cycle battery will last about 20-24 hours running a 12v (4.5 Cu. It requires 2 separate AH ratings at different hour ratings. We can choose the nearest half an hour for timing.
For information on how this calculator works see How to calculate the Watt Hours (Wh) of a lithium battery. 100Ah converts to 1200 watt-hours. In some cases, it can refer to the voltage of the solar panels, the voltage of the battery, or the voltage of the solar inverter generator. lifepo4 battery calculator Customers can benefit from the shipping service we provide at HGB Battery . 346.69 546.68 As low as 312.03. Use the above formula: [ (10 X 60) 100] = 6 hours maximum run time. Battery Capacity = ( Total Load In Watts X Usage time ) / (Input voltage X efficiency %) To understand the above formula, Assume the following numbers. Lead-acid or lithium-ion. Knowing the hour rate of your battery, its . 48v 100ah lifepo4 lithium solar battery for 5kwh 10kwh 20kwh 30kwh home energy storage system 1.5-3 tons 80v 10.4kwh forklift lithium battery Lithium battery pack-12v 300ah 326ah lifepo4 battery.
You have to be careful if you are using a 12V, 24V or 36V system as this can affect your calculations. Battery type: Select the battery type. If you do not know, you will need to contact the manufacturer to find out. Discharge Current - Weight 7 Kg. This is the example to understand it well. Lithium battery charging time has a simple formula: h = 1.5 C/charging current. Some customers asks for 12v battery run time calculator, Actully the formula works for all volts including 12V rechargeable battery Let's say a 12V 100Ah solar lithium battery to be used for a 12V 30A device the battery run time calculation would be 100Ah/30A=3.3 Hours Here we come some key importace take aways This battery life calculator estimates how long a battery will last, based on nominal battery capacity and the average current that a load is drawing from it. For example, a battery rated at 1000mAh provides 1000mA for one hour if discharged at 1C rate. Solar Panels and Inverters.
A regular 6 cubic RV fridge will use around 0.8 amps every hour. If you fully charge your battery and let it sit for 6 hours before turning the RV furnace on your RV fridge may have taken around 5 amps from the RV battery. in short, 12v 400ah battery with a 50% DoD limit will last between 20 hours (running a 110-watt AC appliance) to 1 hour (running a 2100-watt AC appliance). Say, 1200Ah x 48V 1000 Watts =12 hrs (with 20% loss at the max = 48x201000 =1.92 hrs). 4.Price. A 12v 100Ah battery with a 50% depth of discharge limit will run a 32-inch LED TV (40W) for around 12 hours This is how you can put the information to get the runtime of your battery while running a TV. Typically you will have a 100hr rate, a 20 hr rate and a 10 hr rate readily available . "C" Rating is the Battery Charge or Discharge Rate. Therefore, in this case, a battery with 120.3125 Ah of capacity should serve well. Other chemistries, such as LiFe & LiMh batteries will be different. What size battery do I need. In many cases, of course, is unable to calculate the accurate time. The equivalent of 10000 mah is around 3.7 watt-hours or 3.7 amp-hours. The same battery discharged at 0.5C provides 500mA for two hours. Ultramax LI60-12, 12v 60Ah Lithium Iron Phosphate LiFePO4 Battery - 60A Max. Discharge current. Get the monthly weather forecast for Gunzenhausen, Bavaria, Germany, including daily high/low, historical averages, to help you plan ahead. To prolong the life of a battery, a lead-acid battery should not frequently be discharged below 50 %, and Lithium-ion battery not below 20%. This applies to lithium metal batteries (disposable) and lithium ion batteries (rechargeable). 50 AH / 52 amps drawn = .96 hours. 624 watts drawn / 12 volt battery = 52 amps drawn. When we speak about 24V or 48V solar systems, the voltage in the name can refer to many components. A discharge of 1C draws a current equal to the rated capacity. A lithium iron phosphate 100Ah battery will run the fridge for 15.8 hours at 95% discharge. Discharge Current - Weight 10 Kg. Application Load (Ah): Application Runtime (Hours): Battery Type: Gel Flooded (Lead Acid) AGM (Sealed Lead Acid) All Others. PowerStream Technology 1163 South 1680 West Orem, Utah 84058 USA This not only extends the number of cycles you get, but lets the battery degrade by 20% before you start getting less run time than the design calls for Run-Time Calculator Assumptions . 245.79 529.40 As low as 221.22. Lithium batteries draw down further. The easiest way to calculate 100Ah 12 volt deep-cycle run-time is to convert the amp-hours to watt-hours.
. For example: to 1200 mah battery, charger, charging current is 150 ma, time of 1800 mah / 150 ma is equal to 12 hours. Fridges are a special case. Free Solar Battery Calculator: Calculate Fast & Easy The Solar Battery Bank Capacity & The Number Of Batteries In Series Or Parallel. If your lithium battery does not include a watt hour (Wh) rating on the casing you can calculate it by using the voltage and mAh or Ah capacity. Note that 0% is a flat battery and 100% if a full battery. This calculator is designed to help you find a deep cycle battery when a continuous 12-volt load is applied. (80% can be used now and again.) If you know how much power your application takes to run, and the time you would like to run it, we'll recommend a 12-volt battery. 0.05C is the so-called C-rate, used to measure charge and discharge current. voltage, and capacity while connecting them at the same time . Also, you can use this calculator to calculate the runtime of any size battery with any size load. 80% discharge is assumed, but at the recommended DoD of 50% the same 100Ah battery will run the fridge for 8.3 hours. This calculator will tell you what battery size you need. If the only information given by the manufacturer is watts, you divide watts by the voltage of the battery to calculate how many amps are being drawn. Simply multiply available Ah by the battery voltage to find its watt-hours capacity: Battery watt-hours = amp-hour capacity x battery volts Battery watt-hours = 100Ah x 12V = 1200 watt-hours If you're using a Lead Acid battery, you can only discharge to about 50% without causing damage and shortening battery life, so with Lead Acid batteries, you'll get about half that run time, or 12 to 25 hours. Knowing which of the systems is best suited for you should be the one that . This calculator is designed to tell you exactly how long your battery will last given a set amperage load that is put on it. Add more batteries and/or increase battery voltage from 12V to 24V. For example, if we have a 50Ah battery and a motor that draws 624 watts at full speed and uses a 12V battery, we would use the following equation: 624 watts draw / 12 volts = 52 amps drawn at top speed 50 Ah / 52 amps drawn = .96 hours of runtime Battery info. A 2C battery would need just half an hour to load 100 Ah, while a 0.5C battery requires two hours. In order to approximate how long a certain motor will run on the water, you simply take the battery's amp hour rating and divide it by the amperage draw. . For sure, the backup may lasts up to 4.8 hrs at 100% efficiency. Use our battery run time calculator to . The cycle life of LiFePO4 battery is generally more than 2000 times, and some can reach 3000~4000 times.
If Only Amperage Drawn Is Given. For example, a 1C battery needs one hour at 100 A to load 100 Ah. If Only Watts Is Given. A 100Ah lead-acid deep-cycle battery will run a fridge using 630kWh/year for 13.3 hours. You then compare this to the AH rating on your battery. Battery specifications are at C5 Rating; I nverter efficiency of 90% - we add 10% to the wattage required for inverter sizing; Surge factor is only used to assist in selecting the Inverter, it is not . Building battery packs. "/> To determine how much time a battery will last, we use a 12v battery run time calculator method, which calculates the battery's total capacity and dividing the value by the circuit power. Ft.). 12 volt deep-cycle lead-acid available capacity = 100Ah x 50% = 50Ah 50Ah in watt-hours = 50Ah x 12 volts = 600 watt-hours 100Ah battery run time = available capacity / load / inverter efficiency, so A 100Ah battery will run a fully-loaded 100 watt inverter for = 600 / 1000/ 0.95 = 0.63 hours Battery run-time calculator from PowerStream, how long will a battery last calculator Thank you for considering PowerStream Industrial battery engineering. For example, for a motor that pulls 20 amps at medium speed using a 100 amp hour battery, the run time would be: 100 amp hour rated battery / 20 amp draw = 5 hour run time. Battery Capacity or Watt-Hours (Wh) = Amp-Hours (Ah) Voltage (V) In the case of a 100Ah 12V battery, we get: 100Ah 12V Battery Capacity = 100Ah 12V = 1,200Wh Now, this 1,200Wh battery capacity is the most useful piece of information when it comes to determining how long will a 100Ah battery last. Battery capacity is typically measured in Amp-hours (Ah) or milliamp-hours (mAh), although Watt-hours (Wh) is occasionally used. C-rate is used to describe how fast a battery charges and discharges. If you use the same calculation used above subtracting the power used by the fridge first, it knocks a half-hour off of . Total Load: 385 Watts; Usage Time: 3 Hours; Input Voltage: 12V; Efficiency : 0.8 (385 X 3)/(12 X 0.8) = 120.3125. There are many factors that will determine the backup time or how long will your 400Ah battery will last on load. It may be used to calculate the run duration of devices that demand a certain amount of watts or amps. You can convert Watt-hours to Amp-hours by dividing by the . For instance, if the reserve capacity is 120, multiply it by six and multiply the product by the battery's rated wattage to get 1,890,000 as the overall energy.
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