Home Backup Batteries
Emergency Battery Backup for Home
Discover reliable emergency battery backup for home with LiTime. Long-lasting, safe LiFePO4 batteries power your essentials during outages and integrate easily with solar for efficient energy use.
LiTime Home Backup Emergency Batteries
Discover the best Emergency battery for your home power storage.
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Top 5 Best-Selling Home Batteries
Proven Performance, Chosen by Thousands
Best-Sellers Specs Comparison
Compare top-rated home emergency batteries side by side to find your perfect match.
5120 Wh
Energy
5120Wh
Energy
7168Wh
Energy
100A
BMS
100A
BMS
200A
BMS
/
Bluetooth
/
Bluetooth
Bluetooth
17.40*18.90*5.24 in
Size
20.47*10.59*8.66 in (group 8D size)
Size
L18.11*W13.86*H12.01 in
Size
99lbs
Weight Approx.
80.17 lbs
Weight Approx.
132.4 lbs
Weight Approx.
Choose Your Home Life
Ultimate Power Solutions for Your Home Activities
Home Energy Storage
Emergency Backup
Solar Energy
Garage
Workshop
One-Stop Home Power System Solution
Solar Inverter Chargers
Bus Bar
Why LiTime is the Best Choice
16 Years of Innovation and Expertise in the #1 LiFePO4 Battery.NO.1 LiFePO4 Batery
The industry best lithium battery brand.
NO.1 LiFePO4 Batery
As the #1 LiFePO4 battery brand, LiTime leads the market with the most complete power solutions—covering RVs, home storage, marine, golf carts, off-grid systems, and beyond.
17-Year Expertise
17 years of trust. Powering 350,000+ users worldwide.
17-Year Expertise
With 17 years of industry experience, LiTime serves over 350,000+ users globally, ensuring quality and trust. LiTime keeps innovating and has your back, always.
One-Stop Solution
Complete LiFePO4 solutions. All in LiTime.
One-Stop Solution
From 12V to 48V, chargers to accessories, LiTime offers the market’s most complete selection—your one-stop power solution, delivering everything you need and more.
24/7 Expert Support
24/7 expert support—before, during, and after your purchase.
24/7 Expert Support
With 24/7 expert support and an average 24-hour response time, we ensure you get the help you need, anytime. Whether it's pre-sales or after-sales, we guarantee 100% support every step of the way.
Industry-Leading Tech
Leading LiFePO4 innovation. Powered for what’s next.
Industry-Leading Tech
With EV-grade cells passing 80+ tests and a self-developed BMS with under 1% margin of error, LiTime batteries ensure 15,000 cycles, 20+ protections, and up to 10 years of reliable performance.
Cutting-Edge Features
All-in-one battery line. From essential to advanced features.
Cutting-Edge Features
LiTime batteries offer a range of advanced features, including Bluetooth, low-temperature protection, self-heating, high-rate discharge, pre-charging, ensuring reliable power and peace of mind in any environment.
Expert-Backed Quality
Certified. Patented. Proven. LiTime leads with trust.
Expert-Backed Quality
LiTime is certified by top organizations like RVDA, backed by over 70+ patents and recognized for quality. Let authorities and patents prove why LiTime leads the way.
Exclusive Benefits on Official Purchases
Unlock Special Benefits by Shopping on LiTime Official Website
Official Website Discount
1. Register Warranty & Get 5% OFFClaim a 5% coupon for your next LiTime.com purchase after registering any LT battery warranty, regardless of purchase platform
2. First Order: Up to 8% OFF
New customers save 5% instantly; enjoy 8% OFF during promotional events
3. Military Heroes 8% OFF
Exclusive discount for active/retired military personnel and their families. Available to military personnel who have served or are currently serving in the United States Armed Forces.
4. Refer Friends, Earn Rewards
Your friend saves 8% on their first order → You unlock 8% OFF your next order
Risk-Free Orders
30-Day Price GuaranteeIf the price drops within 30 days, we’ll refund the difference.
30-Day Hassle-Free Returns
Return any new/unopened item within 30 days for a full refund. Return shipping is free if the issue is our fault.
LiFePO4 Experts Support
100% Technician-Led Assistance: No bots—real experts handle your technical queries.24/7 Response: Average reply time under 24 hour via live chat/email.
Customer Support: (+86) 181-2417-3126
Monday to Friday: 17:00-24:00 (PST)
Note: SMS unacceptable
Email: service@litime.com
Free Shipping
Free ShippingFree standard shipping on all orders (No minimum).
Speed Guarantee
Delivery within 2-5 business days (90% arrive in 3 days).
Premium Packaging
Secure, durable packaging to ensure safe delivery.
LiPoints & Rewards
Redeem points for accessories, merchandise, and coupons.Join & Get 200 LiPoints
Earn 200 LiPoints instantly when you join the LiTime membership.
Earn Double Points
Regular: 1 LiPoint per $1 spent.
Promotions: 2 LiPoints per $1 spent.
Bonus Points
Share on Social Media: 50 LiPoints per post.
Birthday Reward: 300 LiPoints during your birthday month.
How to Choose Your
Home Batteries?
How to Choose Your Home Batteries?
Just 2 Steps to Find Your emergency Battery
STEP 1
Key Points You Should Know
High Capacity
Massive capacity batteries to power essential loads.
Scalable Energy
Easily scale from single-unit to full-system.
Smart Bluetooth
Track your battery status anytime, anywhere.
All-around Protection
20+ upgraded protections for worry-free backup.
Longer Lifespan
Rigorously tested LiFePO4 cells, 4000-15000 deep cycles, and 10-year lifespan.
Fast Charging
Supports up to 1C charging for faster energy recovery.
Cost Effective
No maintenance, fewer replacements, and more value over time.
Certified Safety
Tested to meet UL, FCC, CE, RoHS, and UN38.3 standards.
STEP 2
Choose the Right Battery for Your Needs
How Many Capacity Do You Need?
What Functions Do You Need?
Let the World Speak for LiTime
Trusted by Experts, Loved by Customers
...
Proven by 350,000 Users
Powering Events Worldwide
· 06/27
Overland Expo PNW 2025
Overland Expo® is the premier overlanding event series in the world—no other event offers the scope of classes taught by the world’s leading experts alongside a professional-level trade show that brings together all the camping and vehicle and motorcycle equipment and services you need to Get Outfitted. Get Trained. Get Inspired. Get Going.
· 01/30
Project AutoCart Rover X2
Projekt AutoCart Rover X2 is an initiative from the Mechatronics/Automation research at Bielefeld University of Applied Sciences, developed by four 7th-semester students. The project focuses on improving an autonomous transport vehicle designed to carry food and beverages. The AutoCart Rover X2 operates in both automatic and manual modes, using cameras, ArUco markers, and sensors to track a target and avoid obstacles.
· 10/30
Romp It Up Music Festival
The Border Hockups – Romp It Up Music Festival blends RV living with vibrant music, dance, and community fun. LiTime proudly supported the event by donating batteries and preparing special gifts for children, bringing energy and joy to this unforgettable RV gathering.
· 10/10
Moonlanding III
MOONLANDING III – To See You Dance Again, hosted by The Journal of Lost Time, unites RV enthusiasts through music, dance, and community. LiTime proudly sponsored the event, providing batteries as prizes for both the raffle and the Battery Race winners, empowering life on the road.
LiTime Reviews: Tested, Proven, Trusted
What Experts & Creators Are Saying
— OKLAHOMA OFF-GRID
— The Grass-fed Homestead
— Brad Cagle
— Big Sky Off Grid
Your Stories, Our Power
User-Driven Always — Your Feedback Powers Us.
![[Full Guide] How Many Batteries Do I Need for a 5KW Inverter?](http://www.litime.com/cdn/shop/articles/How_many_batteries_do_I_need_for_a_5KW_inverter_b451fb61-9bbc-4254-898b-9166428b2b55.jpg?crop=center&format=webp&v=1745467433&width=532)
FAQ
What is the best backup for power outage?
For most homes, the best emergency battery backup is a home battery system (quiet, indoor-friendly, instant power) sized for your essentials—ideally paired with a compatible inverter/charger and transfer setup.
LiTime lithium batteries (e.g., 51.2V 100Ah server rack) are built for scalable backup: 5.12kWh per unit, up to 16 in parallel (81.92kWh), 1C fast charging, and broad inverter compatibility via CAN/RS485.
How long do LiTime home backup emergency batteries last?
In lifespan terms, LiTime’s rack-style emergency battery options are rated for 4000+ cycles @ 100% DoD and 10+ years of battery life (model/usage dependent).
LiTime use EV-grade LiFePO4 cells and a smart BMS with 20+ protections (over/under-charge, over-current, over-temp, short-circuit, low-temp cutoff), plus safety certifications.
Can a emergency battery catch fire when not in use?
The risk is low but not zero—any battery can fail if damaged, overheated, or improperly stored/charged.
LiFePO4 (LFP) chemistry is generally regarded as lower thermal-runaway risk than some other lithium chemistries, and LiTime adds layered protections. Store your emergency battery pack in a cool, dry place, avoid physical damage, and use the correct charger/inverter settings.
How long will an emergency backup battery run for a wifi router?
A typical router (about 5–20W) can run days to weeks on a home battery, depending on battery size and inverter losses. Example with LiTime 51.2V 100Ah rack (~5120Wh):
・At 10W router load → ~512 hours theoretical (~21 days), often ~15–18 days after losses
・At 20W → ~256 hours theoretical (~10.5 days), often ~7–9 days
What is the best souce of backup power for a home?
Best-in-practice is a layered setup: battery storage for instant backup + solar to recharge daily, with an optional generator for long storms/winter stretches. LiTime’s rack batteries support multiple recharge paths (charger/solar/generator), fast charging, and inverter communications—so you can build an emergency battery backup system that starts small (one 5.12kWh module) and expands as your needs grow.
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