Did you guys know that you could use a lithium battery bank to run anything from off-grid holiday houses to fishing kayaks? lithium batteries are dependable and adaptable. Nevertheless, you can't utilize the same amount of battery power for all the gadgets in a house as you can for a single navigation lamp in your boat. If you do that, you'll quickly run out of power.
It's essential to calculate how much battery capacity you need because of this. You can then design the ideal battery bank for your requirements once you've done that.
*What exactly is a battery bank?
A battery bank is made up of two or more batteries that are connected together. They can be wired in either series or parallel. This gives you more energy storage capacity and allows you to power your devices for longer periods of time. Battery bank sizing refers to the number of batteries required and their size.
*How to Determine Battery Bank Size?
Figuring out your battery bank sizing may appear to be a daunting task at first. This is especially true when large amounts of energy are required, such as powering everything in an off-grid house.
But there is some good news: every electronic device will tell you how much electricity it uses. Simply examine the label or packaging. You can use this data to calculate your total energy requirement. That is the first step in determining the size of a battery bank.
So grab a pencil, paper, and calculator (or an electronic device if you prefer). Examine the electrical load draw of each device you intend to power. Then follow the steps below to determine how much capacity you require for your lithium battery bank.
Step 1: Determine Your Daily Energy Demand.
Examine the electrical load drawn by each device. It should be expressed in amps or watts. If it's in amps, multiply it by the number of hours per day you'll use it. That's how many amp-hours you'll need. You can calculate your total daily energy load by adding the daily amp-hour requirements of all devices.
What if the measurement is in watts? To calculate the amps, first divide the watts by the voltage. Then multiply the amps by the number of hours per day that you anticipate using your device. Finally, total the amp-hours required by each device to determine your total energy load.
Want to go off the grid and use solar and a battery bank to power your home? Check your utility bill. You can estimate your annual energy demand by looking at how much energy you used. Don't forget to factor in high-demand months.
Step 2: Create a Lithium Battery Bank to Handle Your Energy Load.
Now that you know your amp-hour requirement, you need to make a lithium battery bank to handle that load.
For example, if you need a total of 40 amp hours to power a 12 volt application, you can connect two 12V 20Ah batteries together in parallel. When you connect batteries in parallel, the amperage adds together, and the voltage stays the same.
If you connect batteries in series, you can increase the voltage. For example, let’s say you have a 24 volt trolling motor. You could make a lithium battery bank of two 12V 100Ah batteries in series, plus one 12V 125Ah to take care of the engine starter and other onboard equipment.
Other Battery Bank Sizing Considerations
Batteries don’t create energy–they only store it. So it’s important to make sure you have a way to charge your lithium battery bank.
There are a few ways to do this:
*A charger connected to the electrical grid
Let’s say you have a 200Ah lithium battery bank, but your solar panels don’t generate enough energy to fully charge it. Your bank won’t be able to provide 200Ah, and you’ll run out of power. In that case, you will have to get more or larger solar panels, or reduce the amount of energy you use.
The good news? Unlike lead acid batteries, a lithium battery bank won’t suffer any damage when partially charged. So the occasional cloudy day is no big deal. However, if your batteries are consistently undercharged, you’re paying for battery capacity that you’re never going to use. In that case, it’s better to choose a battery bank with less capacity that you know you can fully charge.
Here’s some more good news: our lithium batteries come in a variety of voltage and amp hour specifications. So go ahead, breathe a sigh of relief. There is a lithium battery bank that suits both your energy needs and your method of charging. Better yet, we’ve got experts standing by to help you find it.