1stess 51.2V 300Ah 15.36kWh LiFePO4 Home Storage Battery With Wheels
15.36kWh Battery Storage for Residential Solar Projects
The 1stess home energy storage battery combines a 51.2V nominal voltage with 300Ah capacity in a floor-standing enclosure. Its 15.36kWh nominal energy capacity supports residential solar energy storage and backup power applications when integrated with a compatible inverter.
For importers, procurement teams and solar installers, the battery brings together defined electrical specifications, communication interfaces and accessible local controls to support system evaluation and project planning.
Key Features
- 15.36kWh nominal energy: A 51.2V 300Ah configuration for residential energy storage
- LiFePO4 battery chemistry: Lithium iron phosphate cells for rechargeable stationary storage applications
- 6,000+ cycle rating: Specified at 0.2C, 25°C and 80% depth of discharge
- Smart BMS protection: Overcharge, overdischarge and short-circuit protection
- RS485 and CAN communication: Interfaces for integration with compatible inverter protocols
- Touchscreen control: Local access to battery operating information
- Floor-standing construction: Built-in swivel casters and a recessed side handle for positioning during installation
Technical Specifications
| Parameter |
Specification |
| Brand |
1stess |
| Battery chemistry |
Lithium iron phosphate – LiFePO4 |
| Nominal voltage |
51.2V |
| Rated capacity |
300Ah |
| Nominal energy |
15.36kWh |
| Output voltage range |
43.2-58.4V |
| Charging voltage |
57.6-58.4V |
| Cut-off voltage |
43.2V |
| Maximum discharge current |
150A |
| Cycle life |
6,000+ cycles at 0.2C, 25°C, 80% DOD |
| Design life |
10 years |
| Communication interfaces |
RS485 / CAN |
| User interface |
Touchscreen |
| Installation type |
Floor-standing, with swivel casters |
| Protection functions |
Overcharge, overdischarge and short circuit |
Nominal energy is not the same as usable AC energy. Delivered energy depends on operating settings, battery condition and system conversion losses. Design life does not define the warranty period. Confirm the permitted duration of maximum discharge current during system selection.
Integration for Solar Installers and EPC Contractors
RS485 and CAN interfaces support battery-to-inverter communication where the protocols are compatible. Before specifying the battery, confirm the inverter model, battery operating voltage range, charging settings, communication protocol and firmware requirements.
The battery's maximum discharge current must also be considered alongside the inverter's DC input requirements and the project's load profile. Motor starting loads and other short-duration demands require separate verification.
Residential Applications
- Solar self-consumption: Store surplus solar generation for later use with a compatible solar storage system
- Home backup power: Supply selected household loads through a suitably configured backup inverter
- Off-grid residential storage: Form the battery component of a properly sized off-grid system
- Time-of-use energy management: Support scheduled charging and discharging where the inverter controls and local tariff arrangements permit
Procurement and Project Enquiries
For an accurate quotation and system review, provide your required quantity, destination market, inverter model, expected load and backup duration.
Request the latest model-specific datasheet, compatibility information, installation documentation, applicable certification documents and warranty terms before order confirmation.
Frequently Asked Questions
How much energy does this battery store?
Its nominal energy is 15.36kWh, calculated from 51.2V × 300Ah. Actual usable energy depends on the configured operating limits and system losses.
Does the battery directly power household AC appliances?
The specifications describe a DC storage battery. Household AC loads require a compatible inverter; an integrated AC inverter is not specified for this product.
Is it compatible with all hybrid inverters?
Compatibility must be verified for the specific inverter model. RS485 and CAN interfaces alone do not guarantee matching communication protocols.
What are the conditions for the 6,000+ cycle rating?
The stated conditions are 0.2C, 25°C and 80% depth of discharge. Request the test report and end-of-life capacity criterion for a complete lifetime assessment.
How long can it provide backup power?
Backup duration depends on usable battery energy, inverter efficiency and average connected load. Share your load profile with 1stess for a project-specific estimate.
Your message must be between 20-3,000 characters!
