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To determine how long your battery will last, calculate the battery’s total capacity and divide it by your circuit’s power. Multiply the battery’s reserve capacity by 60. With a reserve capacity, for instance, of 120: 120 x 60 = 7,200.
How do you calculate battery life?
Battery life calculation formula: Here the load current I(Ah) in Amps hours is equal to the total load P(W) divide by the battery voltage V(V) in volts. The battery life is equal to the battery volts times of the battery capacity divided by the total loads.
How do you calculate battery hours?
The key is to use the watts you know to calculate the amps at the battery voltage . For example, say you want to run a 250 watt 110VAC light bulb from an inverter for 5 hours. Amp-hours (at 12 volts) = watt-hours / 12 volts = 1470 / 12 = 122.5 amp-hours.
How long does a 6000mah battery last?
The operating time of a battery is interdependent with the amount of current drawn from it, so the number of hours that you get will be affected by the amount of energy used. A 6000 mAH battery can theoretically provide 1000mA for 6 hours, 6000mA for 1 hour, 100mA for 60 hours, and 10mA for 600 hours.
How long will a 9Ah battery last?
Simply, 9Ah 12V Battery can give you 9A for one hour.
How long will a 400 amp-hour battery last?
Batteries are designed to produce a specific voltage, and they are rated for a certain number of amp-hours. For example, a 400 amp-hour battery can supply 4 amperes of current for 100 hours.
How long will 20Ah battery last?
If a battery is rated at 20Ah capacity at 20HR, it means that the battery can discharge 1 Amp per hour over that 20 hour period. A High Rate Battery will typically be rated at 10HR or less. So if a High Rate Battery that is 20Ah capacity at a 10HR, it would be able to discharge 2 Amps per hour over a 10 hour period.
How long is 4000mAh battery life?
A 4000mAh battery life can last up to 4,000 hours, depending on the current required by the object being powered (measured in mA). You can calculate the battery life by dividing the capacity of the battery by the current required by the object.
How long will A 7Ah battery last?
Look for the energy rating listed in units of Ah, that is Ampere-hours. For example, a 12V 7Ah battery will last for 7Ah/10A = 0.7 h = 42 minutes while supplying 10A.
How long will a 10000 mAh battery last?
The duration of how long your 10,000mAh battery can last will depend on how much current is being drawn from it. If your device draws 1mA, then the 10,000mAh battery can last for 10 hours. If your device uses 10,000mA, then the battery may only last for one hour.
How long will a 5000 mAh battery last?
The 5000mAh massive capacity battery lets you game for 8 hours at a time when you can’t stop, won’t stop playing.
How long does a 8000 mAh battery last?
At a rate of 8,000 mAmps (or by the way, 8 Amps) the battery would drain in one hour. If drawing half the current or 4,000 mAmps the battery would last 2 hours.
What does 7Ah battery mean?
In this instance the 7Ah is given as the 20 hour rate, this tells us that at a constant discharge over 20 hours the battery will produce 0.35 amp per hour (20 hours x 0.35 = 7Ah). Jan 30, 2015.
How many watts is a 12V 9Ah battery?
Rated at 12V 9Ah (34 Watt per cell), its characteristics are small volume, light weight and high discharge efficiency.
Can I use 7Ah battery instead of 9Ah?
Simply put both versions will fit in your application and will work fine. As the dimensions of the 12 Volt 7Ah battery and the 12 Volt 9Ah battery are exactly the same, they are interchangeable. Amp-Hours basically show how much energy a battery holds.
How long will a 100Ah battery run an appliance that requires 200w?
Table: Running times for various AC loads 100Ah deep-cycle lead-acid battery with AC loads with inverter – 50% recommended discharge Load (watts) Run time (hours) 100 watts 5.16 hours 200 2.58 300 1.72.
How long will a 24V 400ah battery last?
I saw 24V mentioned in another version) has to supply 20.83 amps to ‘generate’ 500 watts. 400amp-hours/20.83 amps => 19.2 hours run time, ideally.
How long will a 100Ah battery run an appliance that requires 50W?
100Ah Battery Life Calculator Appliance Power Draw (Watts): How Long Will 100Ah Battery Last: 30W 40 Hours 40W 30 Hours 50W 24 Hours 100W 12 Hours.
How long will 48V 20Ah battery last?
In theory, a bike with two riders, loading 150 kg, 48V 20Ah battery pack could run 40 Km, and a bike with one rider could run 70 km with a smaller accelerator. Accelerator pedal size has a big effect on mileage. The 48V12A battery, theoretically, could run 40-50 kilometers with 300 pounds of cargo.
Can I replace a 7ah battery with a 12ah battery?
It will work great. I did the same with our powerwheels. The main thing you have to watch is how many volts it is. This is 12 volts and with it being 12ah will last much longer than the one you have that is 7ah.
How long will a 12ah battery last?
The watts/volts are equal to the amps per hour. A tiny device such as led lighting of power 1.2 watts running on a 12volt power source will use 1.2W/12V = 0.1 amps. Therefore, a 12ah (amp-hour) battery will last for approximately 120 hours.
