BigBattery
BigBattery ETHOS – 20.5kWh – 4 Module Kit – 48V – 400Ah
DK-BNDL-B0008
20.5 kWh · 48V
Part of BigBattery ETHOS – 20.5kWh – 4 Module Kit – 48V – 400Ah
- Storage
- 20.5 kWh400 Ah
- System voltage
- 48V
$4,622.00 eachReg. $7,699.00
In stock
Distributor pricing and stock: call 678-467-5515 or email sales@discountkings.net.
About this product
Use Cases
Ideal for homeowners and businesses looking for substantial energy storage for whole-home backup, solar energy storage, time-of-use optimization, off-grid applications, and scalable energy systems.
Tech Specs
Please Note: Lifetime Customer Support is based in Texas and available via phone and email. We strongly recommend using a certified solar installer and/or master electrician for professional installation. Please note that additional components may be required for your installation.
BigBattery's 48V ETHOS - UL-Certified Lithium Energy Storage System
Introducing the 48V ETHOS - BigBattery's revolutionary power storage solution for your home or business. Our new ETHOS battery system boasts a fully stackable and modular design, complete with its own control box, detailed LED display, and mounting system. Whether you need emergency backup power for your cabin, tiny home, or want to enhance your residential solar system, the ETHOS delivers reliable, efficient power year-round. Featuring an intelligent BMS with auto-cell balancing and an IP65-rated casing, the ETHOS prioritizes safety and durability. Stay informed with its interactive LED display and CANBus/RS485 communication protocols. Certified to the highest standards including UL9540A, UL1973, UN38.3 and CE per battery module & UL9540 with an inverter and battery.
The BEST Stackable Battery System? Meet the Ethos!
Today we're looking at the BigBattery Ethos battery system and how it functions as an Energy storage system. I'll share some tips and tricks I learned during the Solar battery installation. This best battery is a Lithium STACKABLE power solution for your home.
- Your Solar System's Perfect Storage Partner Power your home or business with a high-capacity, expandable energy storage solution built for dependable backup power and daily energy management. This BigBattery ETHOS Battery Bank combines four 5.12kWh LiFePO4…
- Kit Contents
- Modular & Expandable Design: The ETHOS platform is designed to grow with your energy needs. Expand the system by adding additional battery modules and control boxes, with support for up to 16 battery modules per control box. The modular architecture makes…
- Integrated Smart Control Box: The included ETHOS Control Box serves as the master Battery Management System (BMS), coordinating communication between battery modules and compatible inverters while simplifying installation and monitoring.
- Built-In Safety Features: Each system utilizes safe LiFePO4 battery chemistry and includes integrated fire suppression, multiple layers of battery protection, and industry-recognized certifications including UL9540 (with the EG4 18kPV), UL9540A, UL1973, and…
- Indoor or Outdoor Installation: An IP65-rated enclosure helps protect the battery system from dust and water, making it suitable for a variety of installation environments.
Specifications
| Product type | Solar kit / bundle |
|---|---|
| Battery energy | 20.5 kWh |
| Battery capacity | 400 Ah |
| System voltage | 48V |
| Total Energy Capacity | 30.72kWh |
|---|---|
| Maximum Continuous Discharge Current | 250A |
| Maximum Continuous Power | 12.8kW |
| Protection Rating | IP65 |

