• WattCycle Storm-Ready Whole-Home Backup Power Kit — 5.12kWh to 32.2kWh All-in-One Systems
  • WattCycle Storm-Ready Whole-Home Backup Power Kit — 5.12kWh to 32.2kWh All-in-One Systems
  • WattCycle Storm-Ready Whole-Home Backup Power Kit — 5.12kWh to 32.2kWh All-in-One Systems
  • WattCycle Storm-Ready Whole-Home Backup Power Kit — 5.12kWh to 32.2kWh All-in-One Systems
  • WattCycle Storm-Ready Whole-Home Backup Power Kit — 5.12kWh to 32.2kWh All-in-One Systems
  • WattCycle Storm-Ready Whole-Home Backup Power Kit — 5.12kWh to 32.2kWh All-in-One Systems
  • WattCycle Storm-Ready Whole-Home Backup Power Kit — 5.12kWh to 32.2kWh All-in-One Systems
  • WattCycle Storm-Ready Whole-Home Backup Power Kit — 5.12kWh to 32.2kWh All-in-One Systems
  • WattCycle Storm-Ready Whole-Home Backup Power Kit — 5.12kWh to 32.2kWh All-in-One Systems
  • WattCycle Storm-Ready Whole-Home Backup Power Kit — 5.12kWh to 32.2kWh All-in-One Systems
  • WattCycle Storm-Ready Whole-Home Backup Power Kit — 5.12kWh to 32.2kWh All-in-One Systems
  • WattCycle Storm-Ready Whole-Home Backup Power Kit — 5.12kWh to 32.2kWh All-in-One Systems
  • WattCycle Storm-Ready Whole-Home Backup Power Kit — 5.12kWh to 32.2kWh All-in-One Systems
  • WattCycle Storm-Ready Whole-Home Backup Power Kit — 5.12kWh to 32.2kWh All-in-One Systems
  • WattCycle Storm-Ready Whole-Home Backup Power Kit — 5.12kWh to 32.2kWh All-in-One Systems
  • WattCycle Storm-Ready Whole-Home Backup Power Kit — 5.12kWh to 32.2kWh All-in-One Systems
  • WattCycle Storm-Ready Whole-Home Backup Power Kit — 5.12kWh to 32.2kWh All-in-One Systems
  • WattCycle Storm-Ready Whole-Home Backup Power Kit — 5.12kWh to 32.2kWh All-in-One Systems
  • Fast, Free Shipping
    Fast, Free Shipping
  • 30-Day Money-Back Guarantee
    30-Day Money-Back Guarantee
  • Hassle-Free Warranty
    Hassle-Free Warranty
  • Lifetime Customer Support
    Lifetime Customer Support
Payment Method
  • WattCycle Storm-Ready Whole-Home Backup Power Kit — 5.12kWh to 32.2kWh All-in-One Systems
  • WattCycle Storm-Ready Whole-Home Backup Power Kit — 5.12kWh to 32.2kWh All-in-One Systems
  • WattCycle Storm-Ready Whole-Home Backup Power Kit — 5.12kWh to 32.2kWh All-in-One Systems
  • WattCycle Storm-Ready Whole-Home Backup Power Kit — 5.12kWh to 32.2kWh All-in-One Systems
  • WattCycle Storm-Ready Whole-Home Backup Power Kit — 5.12kWh to 32.2kWh All-in-One Systems
  • WattCycle Storm-Ready Whole-Home Backup Power Kit — 5.12kWh to 32.2kWh All-in-One Systems
  • WattCycle Storm-Ready Whole-Home Backup Power Kit — 5.12kWh to 32.2kWh All-in-One Systems

WattCycle Storm-Ready Whole-Home Backup Power Kit — 5.12kWh to 32.2kWh All-in-One Systems

$1,899.99$4,599.99
Our system is modular and scalable, allowing you to add more battery capacity as your energy needs grow.
  • Whole-Home Backup Power: 12kW split-phase output paired with 16.07kWh LiFePO₄ storage runs central AC, fridge, and all essentials for 2–3 days. (UL 1741 Certification - ETL)
  • 🌐 All-in-One Smart Tracking: Take complete command of your power ecosystem with our plug-and-play Wi-Fi dongle, delivering synchronized, real-time tracking of your solar, inverter, batteries, and loads on a single dashboard. Via the smart app, you can instantly adjust charging modes, schedule off-peak distribution, and share control permissions with family members from anywhere. It’s the ultimate way to optimize your energy savings and ensure your home is always storm-ready.
  • 🔄 ≤10ms UPS Seamless Transfer: Grid goes down? You won't even notice—sensitive electronics, medical devices, and TVs stay on without a flicker.
  • ☀️ 24kW Dual MPPT Solar Recharge: Harvest massive solar energy during and after the storm. Your batteries refill by daylight, keeping you off-grid indefinitely.
  • 📈 Limitless Expansion: Scale up to 6 inverters (72kW) and 15 batteries (240kWh+)—build a system that grows with your home or farm.
  • 🛡️ Certified Safe & Built to Last: EV-grade cells, 3A active balancing, and 5+2 year warranty for decade-long peace of mind.
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Scalable Option

This battery will be shipped by truck, so the delivery time needs to be confirmed with the recipient.

We offer free shipping within the continental U.S. via UPS Ground or FedEx, with orders typically processed in 1–2 business days and delivered within 2–5 business days. Large products such as 12V 628Ah, 48V 314Ah batteries, or 12kW inverters are shipped by truck (LTL) and require signature upon delivery. After order confirmation, we will contact you by email to confirm shipment, and transportation arrangements typically take about 48 hours. Please note that we do not ship to Alaska, Hawaii, Puerto Rico, or PO Box addresses. Delivery times may vary due to external factors such as carrier delays or weather conditions.

For complete details, please visit:
Shipping Policy.

Our batteries come with a 5-year warranty, which can be extended to 7 years total upon product registration. Accessories are covered by a 1-year warranty, and like-new (refurbished) batteries include a 1-year warranty.

For full terms, conditions, and claim details, please visit:

Warranty Policy

  • Fast, Free Shipping
    Fast, Free Shipping
  • 30-Day Money-Back Guarantee
    30-Day Money-Back Guarantee
  • Hassle-Free Warranty
    Hassle-Free Warranty
  • Lifetime Customer Support
    Lifetime Customer Support
Payment Method
  • WattCycle Storm-Ready Whole-Home Backup Power Kit — 5.12kWh to 32.2kWh All-in-One Systems
  • WattCycle Storm-Ready Whole-Home Backup Power Kit — 5.12kWh to 32.2kWh All-in-One Systems
  • WattCycle Storm-Ready Whole-Home Backup Power Kit — 5.12kWh to 32.2kWh All-in-One Systems
  • WattCycle Storm-Ready Whole-Home Backup Power Kit — 5.12kWh to 32.2kWh All-in-One Systems
  • WattCycle Storm-Ready Whole-Home Backup Power Kit — 5.12kWh to 32.2kWh All-in-One Systems
  • WattCycle Storm-Ready Whole-Home Backup Power Kit — 5.12kWh to 32.2kWh All-in-One Systems
  • WattCycle Storm-Ready Whole-Home Backup Power Kit — 5.12kWh to 32.2kWh All-in-One Systems
WattCycle Storm-Ready Whole-Home Backup Power Kit — 5.12kWh to 32.2kWh All-in-One Systems
WattCycle Storm-Ready Whole-Home Backup Power Kit — 5.12kWh to 32.2kWh All-in-One Systems
$1,899.99
$4,599.99

Real Homes. Real Installations. Reliable Power.

Storm-Ready Power System Kit Specifications

Compare WattCycle home backup power kits based on output power, battery capacity, solar input, scalability, and installation requirements.

6.5kW Essential Home Backup Power Kit A compact 120V backup solution with 9kW solar input and expandable 5.12kWh wall-mounted battery storage.
6.5kW + 5.12kWh
System Component 6,500W Hybrid Inverter 48V 100Ah Wall-Mounted Battery
1. Core Performance & Capacity
Rated Power / Capacity 6,500W / 6,500VA 5.12kWh / 100Ah
Peak Power 9,750VA
AC Output / Rated Battery Voltage 120Vac ±5% / Pure Sine Wave 51.2V
Operating Range: 40V–58.4V
Rated Inverter Battery Voltage 48V
Minimum Start Voltage: 44V
Standard Input / Output Current 50A
Maximum: 100A
2. Solar & Charging Specifications
Max. PV Input Power 9,000W
4,500W + 4,500W
MPPT Tracker / Voltage Range 2 Channels / Dual MPPT
90Vdc–260Vdc
Max. PV Open Circuit Voltage 300Vdc
Max. Hybrid Charging Current 150A
PV + AC Combined
Battery Charging Current 50A Standard
Maximum: 100A
Charging Overcurrent Protection 110±10A / 10s
3. Management & Expansion
Transfer Time / Balancing 10ms Typical Transfer Time Active Equilibrium
Parallel Capability 1–6 Units
Up to 39kW Total Output
Up to 15 Units
Up to 76.8kWh Total Capacity
Communication Protocol USB, RS485, WiFi, GPRS, Dry Contact RS485, RS232, CAN
Internal Resistance ≤13.9mΩ
Power Failure Self-Consumption ≤300µA
4. Battery Protection
Overcharge Protection 58.4V
Overcharge Protection Recovery 53.6V
Overdischarge Protection 40V
Overdischarge Protection Recovery 47.2V
Discharging Overcurrent Protection 120±10A / 10s
5. Physical & Environmental
Dimensions 21.26 × 13.78 × 4.72 in
L × W × D
15.67 × 7.87 × 24.61 in
398 × 200 × 625 mm
Weight 40.79 lbs / 18.5 kg 99.21 lbs / 45 kg
Operating Temperature 14°F to 131°F
-10°C to 55°C
Charge: 32°F to 131°F / 0°C to 55°C
Discharge: -4°F to 140°F / -20°C to 60°C
Cooling Method Forced Air Cooling
Variable-Speed Fan
Certification FCC Part 15, Class B
Inverter & AC Output
Rated Power 6,500W / 6,500VA
Peak Power 9,750VA
Output Voltage 120Vac ±5%
Waveform Pure Sine Wave
Battery Voltage 48V / Minimum Start: 44V
Transfer Time 10ms Typical
Solar & Charging
Max. PV Input 9,000W (4,500W + 4,500W)
MPPT Channels 2 Channels / Dual MPPT
MPPT Range 90Vdc–260Vdc
Max. PV Voc 300Vdc
Hybrid Charging 150A Maximum
Physical & System
Dimensions 21.26 × 13.78 × 4.72 in
Weight 40.79 lbs / 18.5 kg
Parallel Units 1–6 Units / Up to 39kW
Communication USB, RS485, WiFi, GPRS, Dry Contact
Cooling Variable-Speed Forced Air Cooling
Certification FCC Part 15, Class B
Energy Specifications
Battery Type LiFePO4 Battery
Capacity 5.12kWh / 100Ah
Rated Voltage 51.2V
Operating Range 40V–58.4V
Internal Resistance ≤13.9mΩ
Balancing Active Equilibrium
Current & Protection
Standard Input 50A / Maximum 100A
Standard Output 50A / Maximum 100A
Overcharge Protection 58.4V
Overcharge Recovery 53.6V
Overdischarge Protection 40V
Overdischarge Recovery 47.2V
Charge Overcurrent 110±10A / 10s
Discharge Overcurrent 120±10A / 10s
Expansion & Installation
Parallel Capability Up to 15 Units / 76.8kWh
Communication RS485, RS232, CAN
Dimensions 15.67 × 7.87 × 24.61 in
Weight 99.21 lbs / 45 kg
Charging Temperature 32°F to 131°F / 0°C to 55°C
Discharging Temperature -4°F to 140°F / -20°C to 60°C
Self-Consumption ≤300µA
12kW Whole-Home Backup Power Kit A high-output split-phase system with 24kW solar input and 16.07kWh battery storage for demanding residential loads.
12kW + 16.07kWh
System Component 12kW Hybrid Inverter 48V 314Ah LiFePO4 Battery
1. Core Performance & Capacity
Rated Power / Capacity 12,000W Split Phase / 7,200W Single Phase 16.07kWh / 314Ah
Peak Power / Overcurrent Protection 24,000VA 310±10A / 10s
Output / Rated Voltage 120Vac / 240Vac Pure Sine Wave 51.2V
Operating Range: 40V–58.4V
2. Solar & Charging Specifications
Max. PV Input Power 24,000W
12,000W + 12,000W
MPPT Tracker / Voltage 2 Groups
90Vdc–450Vdc / Maximum 500Vdc
Max. Charging Current 250A
PV + AC Combined
150A Standard
Maximum Input / Output: 305A
3. Management & Expansion
Transfer Time / Balancing ≤10ms UPS Seamless Transfer 3A Active Balancer
Parallel Capability Up to 6 Units
72kW Total Output
Up to 15 Units
240kWh+ Total Capacity
Communication Protocol USB, RS485, WiFi, GPRS, Dry Contact RS485, RS232, CAN
4. Physical & Environmental
Dimensions 24.41 × 17.72 × 5.20 in
620 × 450 × 132 mm
17.72 × 9.45 × 34.65 in
450 × 240 × 880 mm
Weight 52.47 lbs / 23.8 kg 253.53 lbs / 115 kg
Operating Temperature -10°C to 55°C
Derating above 45°C
Charge: 0°C to 55°C
Discharge: -20°C to 60°C
Cooling & Certification Forced Air Cooling
Variable-Speed Fan / FCC Part 15, Class B
Smart BMS Protection
Inverter & AC Output
Rated Power 12,000W Split Phase / 7,200W Single Phase
Peak Power 24,000VA
Output Voltage 120Vac / 240Vac
Waveform Pure Sine Wave
UPS Transfer ≤10ms
Solar & Charging
Max. PV Input 24,000W (12,000W + 12,000W)
MPPT Groups 2 Groups
MPPT Range 90Vdc–450Vdc
Max. PV Voc 500Vdc
Hybrid Charging 250A Maximum
Physical & System
Dimensions 24.41 × 17.72 × 5.20 in
Weight 52.47 lbs / 23.8 kg
Parallel Units Up to 6 Units / 72kW
Communication USB, RS485, WiFi, GPRS, Dry Contact
Energy Specifications
Capacity 16.07kWh / 314Ah
Rated Voltage 51.2V / 40V–58.4V
Balancing 3A Active Balancer
Power & Current
Standard Current 150A
Maximum Input / Output 305A
Overcurrent Protection 310±10A / 10s
Physical & Expansion
Dimensions 17.72 × 9.45 × 34.65 in
Weight 253.53 lbs / 115 kg
Parallel Capability Up to 15 Units / 240kWh+
Communication RS485, RS232, CAN

WattCycle Backup Power FAQ

A: For most homeowners, a battery backup system is the better long-term choice, especially in hurricane-prone regions.Whole-house standby generators cost $5,000–$15,000 installed, require professional maintenance, need natural gas/propane lines (which can be disrupted), and produce 60–80dB of noise. They also have a limited lifespan (10–15 years) and zero resale value.WattCycle battery systems offer compelling advantages:

  • Lower total cost: A 48V 100Ah 5.12kWh Battery ($829.99–$999.99) + 12kW Inverter ($1,599.99) starts at under $2,500—far less than a standby generator installation.
  • Solar savings year-round: Unlike a generator that sits idle 99% of the time, your WattCycle system works daily with solar panels to reduce electric bills. The 314Ah 16kWh battery can save up to 10,000 kWh annually with deep discharge twice daily.
  • Scalable: Add batteries as budget allows. No need to overspend upfront.
  • Silent & clean: No fuel, no fumes, no noise complaints.
  • UPS function: The ≤10ms transfer protects sensitive electronics (computers, medical devices, TVs) that generators can damage.
  • 15+ year lifespan: EV-grade cells with 3A active balancing and 5+2 year warranty outlast most generators.

A: Yes, you can. However, the inverter’s auto-sleep behavior depends on active inputs and loads:

  • Auto-Sleep Threshold: When the AC load drops below 25W, the inverter will automatically enter sleep mode after about 5 minutes to conserve battery life.
  • Solar Override: If there is active PV (solar) input, the inverter will stay awake to manage the incoming solar energy and will not enter sleep mode.
  • Pro-Tip for Evening/Night: During dusk or overcast periods when solar input drops below 15W, the inverter's standby self-consumption (80–120W) may exceed the solar generation. To prevent unnecessary battery drain at night or during weak sun conditions, we highly recommend manually turning off the inverter's AC output.

A: Yes, absolutely! While our inverter is a heavy-duty split-phase system, it natively supports Single-Phase 120V Dual Modes for standard household setups or RV integrations without complicated wiring.

Here is how to set it up as a standard 120V system:

  • AC Input (Charging): Connect your line only to L1 and N (leaving L2 disconnected).
  • AC Output (Load): Draw your power directly from L1 and N to power your standard 120V appliances or sub-panel.
  • Inverter Setting: Configure your output priority to Battery Priority (SOL).
  • The Result: The system bypasses the 240V split-phase requirement and directly outputs standard, stable 120V utility-style power—making it perfect for RV parks, mobile workshops, or simple DIY emergency backups.