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So, How to Choose the Perfect Off-Grid Batteries?
Before you buy, understand these 8 key factors to make the smartest investment possible.
Capacity / Runtime
Clarify your power needs. Capacity (Ah) determines the number of days you can go "off-grid."
Calculate the total power consumption of all your appliances and choose a battery that will allow you to comfortably power through the nights and even weekends. Calculation logic: Usable days = total battery capacity / total daily power consumption. If your daily power consumption is 1kWh, a 12.8V 200Ah battery (12.8 * 200 = 2.56kWh) can provide power for two days (2.56kWh / 1kWh = 2.56 days).
Tip: Lithium iron phosphate batteries can be discharged completely, so the actual usable power of a 12V 200Ah battery far exceeds that of a traditional lead-acid battery (discharged at a 1C rate of 50%).
Calculate the total power consumption of all your appliances and choose a battery that will allow you to comfortably power through the nights and even weekends. Calculation logic: Usable days = total battery capacity / total daily power consumption. If your daily power consumption is 1kWh, a 12.8V 200Ah battery (12.8 * 200 = 2.56kWh) can provide power for two days (2.56kWh / 1kWh = 2.56 days).
Tip: Lithium iron phosphate batteries can be discharged completely, so the actual usable power of a 12V 200Ah battery far exceeds that of a traditional lead-acid battery (discharged at a 1C rate of 50%).
Max. Output Power
Check the battery's Max. Continuous Output Power (W): Can it power a microwave oven (1000W+) and a kettle (1000W+) simultaneously? Ensure your battery can provide enough power for all appliances to function properly without triggering overload protection.
Size / Space Savings
Before purchasing, please be sure to measure the length, width, and height of your RV's battery compartment. Lithium iron phosphate batteries are generally more compact, and Redodo offers a full range of lithium solar batteries in various sizes, including Group 24 and Group 31. Ensure the new battery fits smoothly and allows for adequate heat dissipation.
Weight Savings
Lithium iron phosphate batteries weigh only one-third of a lead-acid battery of the same capacity. They can be easily transported and installed by one person, making upgrades incredibly simple.
Multiple Functions
Choose off-grid batteries with different functions according to your needs, such as low temperature protection, Bluetooth, self-heating, etc.
Life Expectancy
This is the biggest advantage of Redodo lithium iron phosphate batteries! Look for products clearly marked as having a cycle life of 4,000-15,000 cycles. This means that even with daily charging and discharging, they can last for over 10 years, making their long-term costs far lower than lead-acid batteries, which require frequent replacement.
Maintenance-Free
LiFePO4 batteries offer true zero maintenance. No watering required
Lifecycle Cost
Focus on the full lifecycle cost. When you consider their exceptionally long lifespan (no frequent replacements required), zero maintenance costs, and 100% discharge capacity (meaning you'll need a smaller capacity), lithium solar batteries are actually a more economical and sensible choice.
Now Match Your Scene, Find Your Best Off-Grid Solar Battery
Garage/Workshop
Home Office
Off-Grid Cabin
Garden/Storage Shed
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Huge weight savings and quick recharging!
The consistency and quality is Outstanding !!
Fish all day, had power all day still had more than half the battery left.
Wonderful experience!!!
I installed it into the front cargo compartment and it is doing great so far.
Love the build quality of this battery! Customer support responds quickly! So far this has been one of the best batteries I've invested in for my solar system.
Awesome battery. Highly recommended.
Work great!Very impressed, great value!
I love this battery so much that I now have two!
This battery has been a game changer. We use it in the boat for our trolling motor fishing. Other batteries we have only gotten a few hours of continuous use but this battery has gone for 11 hours and still going. Best battery purchase ever!
Best price per amp hour, fast shipping and they have been very reliable
I am switching from AGM batteries to lithium, the price I found these Redodo batteries for is why I decided to go ahead and make the switch and the customer service is great.
so small n light! i have 8 of the regular 100ah size in my RV Bus.. these are smaller for the lil rowboat!
so small n light! i have 8 of the regular 100ah size in my RV Bus.. these are smaller for the lil rowboat!
Great product. Performed better than I had expected.
So far so good! Easy replacement for my old gel batteries. I had to replace the charge controller too, but now I have double the usable Amp-hours.
It works great, l have never run out of power since bought your 200 amp battery.
I can now go 3 days without charging the batteries
Today l motored all day long and still have 40%, it's awesome.
Great battery with great customer service!
Works great lasts a long time.
This battery is awesome, we love it!!
Replaced my lead acid batteries with redodo and now my system lasts twice as long with no problem.
Awesome, fast delivery and runs like a champ.
5 stars! Great battery, reliable and long lasting... my brand from now on!
Awesome Battery!!! Love the extra AH and Bluetooth BMS. Great prices too!! Works perfectly in my off grid trailer!!
FAQs
What is an off-grid solar battery and how does it work?
An off-grid solar battery stores electricity generated by solar panels for use when sunlight isn’t available—like at night or during cloudy days. It allows homes, cabins, or RVs to operate independently of the utility grid by providing consistent, renewable energy.
What are the best batteries for an off-grid solar system?
Lithium batteries, especially LiFePO4 (lithium iron phosphate), are the best batteries for off-grid solar setups. They last 3-4 times longer than lead-acid batteries, charge faster, are more efficient, lighter in weight, and require no maintenance. They also provide deeper discharges and better performance at high rates, making them more suitable for off-grid setup.
How long do Redodo's lithium solar batteries last in off-grid systems?
Redodo lithium batteries for solar, such as the Redodo 12V 100Ah LiFePO4 battery, can last significantly longer—up to 10 years with proper maintenance. These LiFePO4 batteries offer up to 4,000 cycles at 100% depth of discharge, which are much longer than lead-acid batteries (last around 2 to 3 years), making it a durable choice for off-grid applications.
How many solar batteries do l need to go off-grid?
That depends on your power consumption. For example, an average off-grid home using 15-20kWh daily may need a more than 20kWh battery system, which can be built using multiple 12V or 24V lithium batteries in series and parallel, or 48V lithium batteries in parallel.
Can I use Redodo off-grid batteries with solar panels?
Yes. Redodo lithium batteries are fully compatible with solar systems. Just ensure your solar charge controller is compatible with lithium batteries.
How do I choose the right lithium solar battery for my home?
To choose the right lithium solar battery, start by determining your system voltage (12V, 24V or 48V). Then, calculate your daily energy consumption in kilowatt-hours (kWh). This helps you determine the battery capacity needed.
Next, decide how many days of autonomy you want to store energy for cloudy or low-sun days. Consider the local climate, as some batteries with low-temp protection perform better in extreme temperatures, and ensure compatibility with your inverter.
What is the difference between off-grid batteries and grid-tied batteries?
Redodo LiFePO4 solar battery can be used for both off-grid and grid-tied systems, which differ primarily in their purpose and operation. Off-grid batteries are designed to provide power entirely independently from the utility grid, storing energy generated by renewable sources like solar panels or wind turbines and supplying it to the home when needed. These systems must be sized to meet all of a home's energy needs, including backup storage for periods of low generation.
In contrast, grid-tied batteries are typically used in hybrid systems. Grid-tied batteries are designed to work in conjunction with the grid, offering flexibility but still relying on grid power for the majority of the time.
Are lithium batteries environmentally friendly for off-grid systems?
Lithium batteries are eco-friendly, particularly when paired with renewable energy sources like solar or wind power. Compared to lead-acid batteries, lithium options are more sustainable and have a lower environmental impact. Additionally, LiFePO4 lithium batteries like Redodo’s offer superior durability and require less maintenance, making them more eco-friendly options over time.
What's the advantage of Redodo lithium batteries compared with portable power stations?
Portable power stations are great for emergencies, camping, and outdoor adventures, but they may not be suitable for whole-home solar off-grid energy storage. Redodo off-grid lithium batteries, on the other hand, offer modular expandability, longer lifespan, and greater expansion capacity, making them ideal for full-time or large-scale off-grid systems.
How does a Redodo off-grid battery system compare to a Tesla Powerwall?
While Tesla Powerwall is a high-capacity solution for off-grid home, Redodo batteries offer a more customizable and cost-effective alternative. You can build a Redodo-based system to match your exact needs with flexible expansion, easy integration, and lower cost per kWh. These Redodo lithium batteries can also be used for mobile applications like RVs, boats, and outdoor camping.
Are Redodo off-grid batteries safe to use in cold environments?
Yes. Our off-grid solar batteries are designed to discharge safely within the range of -20°C to 60°C (-4°F to 140°F). Some models come equipped with low-temperature cutoff protection or a self-heating function, making them well-suited for cold conditions. For extreme climates, however, we recommend placing the battery in a warm indoor environment when not using, to ensure optimal battery performance and longevity.