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So, How to Choose the Home Backup Solar 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 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.
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
Decide if you prefer a maintenance-free option (Lithium) or are comfortable with maintaining a flooded battery.
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 iron phosphate batteries are actually a more economical and sensible choice.
Quality Standards
Determine discharge capability, ensuring reliable performance and steady power delivery even under demanding conditions.
Home Backup Battery Recommendation Guide
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Your Experience Matters Most to Us
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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 a home battery?
Home batteries are energy storage systems designed to store electricity for residential use. They play a crucial role in managing energy consumption, especially using to store solar power or act as backup during outages. A reliable home battery system can enhance energy independence, reduce reliance on the grid, and promote cost savings by allowing homeowners to utilize stored energy when electricity rates are higher.
How do home batteries work?
Home batteries are energy storage systems that charge using electricity from the grid or renewable sources like solar panels, storing excess energy for later use. They discharge this stored energy during peak demand times or outages, converting DC electricity into AC for household appliances through an inverter.
Are Redodo lithium batteries safe for home use?
Yes. All Redodo batteries feature advanced Battery Management Systems (BMS) with over 20 protections, including overcharge, over-discharge, overcurrent, over heating, and short circuit, ensuring safe operation and optimizing energy flow.
Why choose Redodo lithium batteries for home backup?
Redodo LiFePO4 lithium batteries use EV-grade LiFePO4 cells, offer excellent reliability, are lightweight, support flexible expansion. Comparing to traditional lead-acid batteries, they delivering over 3x the lifespan (4,000-15,000 cycles), 2x the usable capacity in @1C (for the same rated capacity), and 1/3 the weight. Redodo batteries aren’t just ideal for home backup, they’re also a reliable power solution for RVs, marine applications, and solar energy systems.
How big of a battery do you need to power a house?
It depends on your energy usage. A typical U.S. household uses 20 to 30kWh per day. For partial backup (essentials only), 10 to 15kWh may be sufficient. For full-home backup, a 20kWh+ battery system (e.g., 4 × 48V 100Ah lithium batteries in parallel) is often ideal, especially when paired with solar panels.
Read the blog to learn: How Many Solar Batteries Do I Need to Power a House?
How long will a 20kW battery system power a house?
A 20kWh home battery system can power essential appliances (fridge, lights, Wi-Fi, TV, fans) for 1-2 days, depending on usage. For whole-house usage, it may last 12–18 hours under higher loads. Energy-efficient households or those with solar charging can extend that time.
Can I use these batteries for solar energy storage?
Yes, Redodo’s lithium batteries are perfect home batteries for solar storage. They can store excess solar energy during the day and power your home at night or during outages. They are ideal for off-grid solar batteries for cabins and RVs.
What appliances can I power with Redodo lithium batteries for home?
With Redodo lithium home batteries, you can run refrigerators, lights, routers, fans, medical devices, and even power tools at your home, anything within the system’s wattage limit.
Can I expand the battery system as my needs grow?
Yes. Redodo deep cycle batteries support 4P4S expansion, allowing you to build a large system (e.g., 20.48kWh using 12V 100Ah batteries in 4P4S) to match your home’s energy demands.
How do I monitor the home backup battery status?
Select the Redodo batteries which are come with Bluetooth 5.0 connectivity, allowing real-time monitoring of battery status, capacity, and performance via the Redodo App. For the non-Bluetooth battery system, consider use a battery monitor to check the system status in real-time.