Solar Lithium Stackable Battery 20kwh 51.2v/48v 400ah Deep Cycle
From $2,800.00Login for exact price
CMX Battery 51.2V 400Ah 20 kWh home energy storage battery — factory-direct from a LiFePO4 battery manufacturer and OEM/ODM partner, supplied wholesale and in bulk with private-label options.
- Performance: 6,000+ cycles @ 80% DoD with Grade A automotive cells and smart BMS protection; 5–10 year warranty.
- Compliance: Certified to CE, RoHS, UN38.3 and IEC62619 (UL available); CAN / RS485 / RS232 for inverter and EMS integration.
- Best for: Residential solar self-consumption; Off-grid and hybrid homes; Backup power during outages.
Overview: Solar Lithium Stackable Battery 20kwh 51.2v/48v 400ah Deep Cycle
51.2V 400Ah 20 kwh CMX Battery home energy storage battery is a drop-in LiFePO4 replacement engineered for demanding home energy storage applications. Built with automotive-grade cells and a smart BMS, it delivers longer cycle life, faster charging and a lighter footprint than the lead-acid battery it replaces. As a LiFePO4 battery manufacturer and OEM/ODM partner, CMX Battery supplies this model in wholesale and bulk quantities with flexible private-label options.
Key Specifications
| Chemistry | LiFePO4 (Lithium Iron Phosphate) |
|---|---|
| Nominal Voltage | 51.2 V |
| Capacity | 400 Ah |
| Energy | 20 kwh |
| Cycle Life | 6,000+ cycles @ 80% DoD |
| Certifications | CE, RoHS, UN38.3, IEC62619, MSDS |
| Communication | CAN bus / RS485 / RS232 (select models) |
| Warranty | 5–10 years (model dependent) |
Applications & Use Cases
- Residential solar self-consumption
- Off-grid and hybrid homes
- Backup power during outages
- Time-of-use load shifting
- Balcony and cottage systems
Browse the full range in our Home ESS batteries category.
Key Features
- Modular & Stackable Design: Each unit is part of a stackable battery system, available in 5kWh or 10kWh modules. Connect up to 16 modules in parallel to reach a total capacity of 160kWh, offering unmatched flexibility.
- 200Ah Lithium Battery Core: Built with premium-grade LiFePO4 200Ah lithium battery cells, providing consistent output, deep cycle performance, and thermal stability.
- Over 6,500 Cycles & 10+ Years Lifespan: Enjoy long-term energy security with deep cycle durability and industry-leading cell chemistry.
- Advanced Smart BMS Protection: The integrated Battery Management System ensures safe operation through overvoltage, short-circuit, overcurrent, and temperature control.
- Wide Inverter Compatibility: Fully compatible with off-grid and hybrid inverters for homes, telecom towers, microgrids, and commercial setups.
- Stackable 48V / 51.2V modules
- Compatible with leading hybrid inverters
- Safe LiFePO4 with automotive-grade cells
- Mobile app monitoring (optional)
Why Choose CMX Battery — LiFePO4 Battery Manufacturer & OEM/ODM Partner
CMX Battery is a LiFePO4 battery manufacturer with in-house cell sourcing, BMS engineering and pack assembly. We support wholesale, bulk and OEM/ODM orders with competitive MOQ, factory-direct pricing (FOB Shenzhen; EXW / CIF / DDP available) and global shipping. Every pack uses Grade A cells and is certified to CE, RoHS, UN38.3, IEC62619 and UL standards, backed by a 5–10 year warranty and responsive technical support.
Home ESS Battery FAQ
Which inverter is CMX Battery home battery compatible with?
CMX Battery home batteries speak CAN / RS485 / RS232 and pair with Luxpower, Deye, Growatt, Solax, Victron and most hybrid inverters.
Is a home lithium battery safe indoors?
Yes. LiFePO4 is the safest lithium chemistry — non-combustible, no off-gassing — and our modules include multi-layer BMS protection.
How much storage do I need for my home?
A typical home uses 5–15 kWh/day. CMX Battery 48V 100Ah (5.12 kWh) modules stack to match your solar array and backup needs.
Request a Quote
Need volume pricing, custom voltage/capacity or private-label branding? Contact our sales team for a quote, or review frequently asked questions about shipping, lead time and OEM service. See our Shipping & Delivery guide for battery logistics.
Related models in this range
Compare other options in this category:
| Voltage |
|---|
You must be logged in to post a review.


Product & Packaging Details
Q: Do batteries include protection circuits(BMS) and connectors?
A:Protection: We supply batteries with BMS built in Protection Circuit Modules (PCM).
Connectors: We normally use standard like anderson,M8 lugs,Fast plugs or depends on OEM customer's demands.
Q: Are batteries Grade-A and brand new?
A: Yes, we use 100% brand new, Grade-A cells in all our batteries.
Q: Can you print our logo on the batteries?
A: Yes, we offer free custom logo printing with a minimal MOQ requirement.
Q: What is your standard packaging? Can it be customized?
A: Our standard is a white box per battery. We fully support customized packaging, including carton box and logo design.
Yes. CMX Battery is a manufacturer located in Shenzhen, Guangdong, China. It designs and produces LiFePO4 battery packs for energy storage, electric forklifts, marine applications, golf carts, RVs, and UPS systems.
Lead time depends on the product: standard battery packs are typically 15-25 days, while larger integrated systems such as our mobile EV charging units are 35-45 days. The exact schedule is confirmed in your quotation.
The company has strategic cooperation agreements with top manufacturers like EVE and REPT, and insists on using A+ tier One lithium iron phosphate cells for its solar batteries.
For 48V inverters, compatible brands include Victron Energy, Goodwe, Studer, Solis, LuxPower, and others. For high-voltage three-phase inverters, compatible brands include Atess, Solinteg, SAJ, Goodwe, and Solis.
CMX Battery offers dealer customers a 10-year warranty and technical service for its energy storage battery products.
DoD describes how much of the battery's capacity has been used. A DoD of 100% means the battery is completely empty, while 0% means it is full.
SoC reflects the battery's charge level. A SoC of 100% means the battery is full, and 0% means it is empty.
C-rate, or power factor, indicates how quickly a battery can be charged or discharged relative to its capacity. A rating of 1C means the battery can be fully charged or discharged in one hour.
The battery uses Lithium Iron Phosphate chemistry and provides a cycle life of over 6,000 cycles at 90% Depth of Discharge, and over 10 years at one cycle per day.
kW (kilowatt) is a unit of power, measuring the rate of energy production or consumption. kWh (kilowatt-hour) is a unit of energy, measuring the total amount of work done or energy used over time.
CMX Battery home batteries are suitable for both indoor and outdoor installation (depending on the model's protection level) and offer floor-standing or wall-mounted options. Common locations include garages, attics, or under eaves.
This depends on the load. As a realistic example, a 10kWh battery could run ten 100-watt light bulbs for 12 hours without recharging.
The number varies based on home size, energy consumption history, and personal goals (like which devices to run during an outage). For most systems, 2 or 3 batteries are installed. A detailed discussion of your needs is recommended for an accurate assessment.
Yes, it is possible, but it requires careful planning and significant investment. A true off-grid system needs a large enough solar array and sufficient battery storage to sustain your lifestyle. Cost and having an alternative energy source for when solar charging isn't possible are key considerations.
No. CMX Battery focuses on building long-term relationships with business partners like battery distributors, solar equipment dealers, and installation contractors worldwide, not direct sales to end consumers.



Inverter brand list — 48V / 51.2V hybrid and off-grid inverters
Our low-voltage packs communicate over CAN and RS485, which is how these hybrid and off-grid inverters read pack voltage, current and state of charge. Tell us your inverter model and firmware version and we will confirm the pairing before you order.
Luxpower
Sol-Ark
Solax
Sinexcel
SolarMax
Megarevo
Sungrow
Sunsynk
ATESS
EPEVER
Voltronic
GoodWe
Hypontech
INVT
Schneider
SRNE
Sorotec
Victron
KOYOE
Deye
Seneigy
Sofar
Growatt
MUST
SMA- SolisSolis
- MorningstarMorningstar
- OutBackOutBack
- PhocosPhocos
- StuderStuder
Related products
15kWh 48V 300Ah Server Rack Lithium Battery for Home Solar Energy Storage
48V 300Ah 15KWh Server Rack Battery bank
This 15kWh 51.2V 300Ah lithium server rack battery bank uses high-quality Grade A LiFePO4 cells to deliver long service life, strong safety performance, and a practical design suited for modern energy storage systems.With a 51.2V nominal voltage, the battery works smoothly with most 48V hybrid inverters. As a result, it fits well in home solar storage systems, off-grid installations, and backup power applications.In addition, the system supports parallel connection of up to 16 units, which allows users to expand capacity as their energy needs grow. It also provides more than 6,000 deep charge cycles, built-in WiFi and Bluetooth for remote monitoring, and an integrated fire suppression system. Together, these features make it a reliable and scalable energy solution for both residential and commercial use.16.08kWh Mobile LiFePO4 Energy Storage Battery | 51.2V 314Ah IP65 Modular ESS with Wheels for Residential & Commercial
CMX Battery 51.2V 314Ah 16.08 kWh home energy storage battery — factory-direct from a LiFePO4 battery manufacturer and OEM/ODM partner, supplied wholesale and in bulk with private-label options.
- Performance: 6,000+ cycles @ 80% DoD with Grade A automotive cells and smart BMS protection; 5–10 year warranty.
- Compliance: Certified to CE, RoHS, UN38.3 and IEC62619 (UL available); CAN / RS485 / RS232 for inverter and EMS integration.
- Best for: Residential solar self-consumption; Off-grid and hybrid homes; Backup power during outages.
1KWh 2KWh Portable Power Station for home backup outdoor
1KWH 2KWh Portable Power Station for Home Backup Outdoor
The 1kWh portable power station lithium battery uses durable LiFePO4 cells to deliver safe backup power for camping, travel, and emergencies. Lightweight and solar-compatible, it’s an excellent portable power station for camping or powering small devices and a camping fridge on short trips.The 2kWh portable power station lithium battery features a pure sine wave inverter and larger capacity, ideal for fridges, CPAP, tools, or eBikes. As a solar-powered portable power station, it provides clean and quiet energy for blackouts, RVs, and off-grid use.Both models are designed for reliability and affordability, with options ranging from individual units to portable power station wholesale supply, making them a practical choice for home backup and outdoor power.| Model | Capacity | Output Power | Charging Power | Dimensions (mm) | Weight |
|---|---|---|---|---|---|
| EG-PW-A1000 | 1004.8Wh | 300W | 400W | 290×130×225 | 9.9kg |
| EG-PW-A1000 Pro | 1004.8Wh | 500W | 500W | 290×150×225 | 10.8kg |
| EG-PW-A2000 | 2009.6Wh | 500W | 500W | 300×215×250 | 20.9kg |
| EG-PW-A2000 Pro | 2009.6Wh | 1000W | 1000W | 340×260×260 | 21.8kg |
24V 200Ah Rack-Mount LiFePO4 Battery | 5.12kWh 4U Server Rack Solar Storage Module
30.72kWh High Voltage Solar Battery | 204.8V 150Ah Stackable LiFePO4 ESS
51.2V 300Ah 15kWh Floor-Mounted Energy Storage Battery with Wheels
15kWh 51.2V 300Ah LiFePO4 Lithium Battery with Wheels Floor-Standing Solar Energy Storage
The EG 15kWh 51.2V 300Ah lithium battery is a high-performance LiFePO4 solar battery system designed for floor-standing installation with built-in roller wheels for easy mobility.It features a robust, plug-and-play design ideal for residential and commercial solar energy storage applications. Integrated with a smart BMS and intuitive touchscreen interface, it offers long-lasting, efficient, and safe power backup for modern off-grid or hybrid energy systemsModel: EG-48V300Ah-WL
Product Name: 15kWh 51.2V 300Ah Floor-Standing Lithium Battery with WheelsBattery Type: 48V 300Ah Grade A LiFePO4 Cells
Cycle Life: >9000 Cycles (@25°C, 80% DOD)
IP Rating: IP65 Water & Dust Protection
Communication Protocols: RS485 / CAN
Display: Touch Screen LCD
Dimensions: 850(with wheels)*453*240mm34.4(with wheels)*17.7*9.5inch
Mobility: Equipped with 4 Universal Roller Wheels
Application: Residential Solar Storage, Backup Power, Off-grid, Hybrid Systems, Commercial Use
CMX Battery Energy Storage 5kwh Lithium Solar Stack Server…
CMX Battery 5 kWh home energy storage battery — factory-direct from a LiFePO4 battery manufacturer and OEM/ODM partner, supplied wholesale and in bulk with private-label options.
- Performance: 6,000+ cycles @ 80% DoD with Grade A automotive cells and smart BMS protection; 5–10 year warranty.
- Compliance: Certified to CE, RoHS, UN38.3 and IEC62619 (UL available); CAN / RS485 / RS232 for inverter and EMS integration.
- Best for: Residential solar self-consumption; Off-grid and hybrid homes; Backup power during outages.
CMX Battery Rechargeable 600W Lifepo4 Portable Solar Power Station 110V Camping Solar Generator with Solar Panel
CMX Battery 110V home energy storage battery — factory-direct from a LiFePO4 battery manufacturer and OEM/ODM partner, supplied wholesale and in bulk with private-label options.
- Performance: 6,000+ cycles @ 80% DoD with Grade A automotive cells and smart BMS protection; 5–10 year warranty.
- Compliance: Certified to CE, RoHS, UN38.3 and IEC62619 (UL available); CAN / RS485 / RS232 for inverter and EMS integration.
- Best for: Residential solar self-consumption; Off-grid and hybrid homes; Backup power during outages.










Reviews
There are no reviews yet.