Apollo C Series 15kWh All-in-One ESS
Model: SCAP-C-51.2-300

Product Overview
Is the SCAP-C-51.2-300 the Right Capacity for You?
Best suited for
The 15kWh Apollo C is a single-cabinet system housing one 300Ah LiFePO4 block with a 6KW inverter in a 70 by 26 by 51 centimeter enclosure. Unlike the stackable A and slim B, it arrives as one floor-standing piece, giving installers the fastest deployment for 15kWh homes.
Typical loads this capacity handles
It runs essential household circuits on the 6KW inverter with a 200A discharge, covering fridge, lighting, electronics, and backup for communications and medical equipment. The single-block design removes inter-module wiring and stacking hardware entirely.
Estimated runtime
Backup example: about 13.5kWh usable. A 500W load lasts roughly 27 hours and a 1000W load around 13.5 hours, matching the duration of the A-series 15kWh in a one-piece cabinet.
Sizing advice
Pick the C 15kWh when the home needs 15kWh from day one and the priority is simple, fast floor installation with no stacking. It is not expandable in the way the A is, so choose it when the target capacity is already settled.
Technical Specifications
- Power
- 6KW
- Battery Input Voltage
- 51.2V
- Inverter Output Voltage
- 230V
- Max PV Input Power
- 27A/9000W
- PV Input Voltage Range
- 80V-500V
- Max MPPT Charge Current
- 120A
- Dimensions
- 70*26*51CM
- Voltage
- 51.2V
- Capacity
- 15360Wh(300Ah)
- Discharge Current
- 200A
- Battery Type
- LiFePO4
Key Advantages
- ✓6KW hybrid inverter with 230V AC output and surge headroom for motor starts
- ✓15360Wh(300Ah) of Grade A LiFePO4 storage with about 90% usable energy and 2000-4000 cycle life
- ✓Integrated MPPT controller: up to 9000W of solar input, wide 80V-500V PV range, 120A MPPT charge current, for fast solar recharge
- ✓Single floor-standing cabinet delivered as one pre-wired piece for the fastest 15kWh installation
- ✓5-year warranty with CE, UN38.3, and MSDS certification as standard
- ✓Factory-direct wholesale pricing and full OEM/ODM customization from CMJ Solar
Applications
Shipping & Warranty
Worldwide Shipping
Global shipping via sea freight and express courier. FOB Shenzhen or EXW Jiangmen terms available. Production lead time 10-20 days depending on order volume and customization requirements.
Warranty & Support
5-year warranty on battery systems. LiFePO4 cells rated for 2000-4000 cycles. BMS protection, WIFI monitoring, and technical support included. Spare parts available throughout warranty period.
Frequently Asked Questions
What warranty does this product come with?
The Apollo C Series 15kWh All-in-One ESS comes with a 5-year warranty covering the LiFePO4 battery cells and integrated BMS. Our LiFePO4 cells are rated for 2,000-4,000 charge-discharge cycles, providing 5-10 years of reliable daily use under normal operating conditions. Spare parts and technical support are available throughout the warranty period.
What is the MOQ (Minimum Order Quantity)?
The MOQ is typically 20 units per model for standard products. Sample orders of 1 unit are welcome for testing and evaluation. For OEM/ODM custom packaging or private labeling, the MOQ is 500 units. Contact our sales team for specific pricing based on your order volume.
How long can the Apollo C Series 15kWh All-in-One ESS power my home during an outage?
The Apollo C Series 15kWh All-in-One ESS provides 15,360Wh of stored energy (approximately 13,824Wh usable at 90% depth of discharge). At an average essential-load draw of 500W (lights, router, refrigerator, and TV), it can sustain power for approximately 27.6 hours. At 1,000W, runtime is approximately 13.8 hours. Actual runtime depends on total connected load and usage patterns.
What appliances can the 6KW inverter handle?
The Apollo C Series 15kWh All-in-One ESS features a 6KW hybrid inverter with 230V AC output. At 6KW, it can simultaneously run household appliances such as refrigerators (150-400W), LED lighting (10-50W), televisions (50-150W), computers (100-300W), and smaller air conditioning units. The inverter also supports surge power for motor startups. For high-power devices like electric ovens or heat pumps, verify the combined load does not exceed the continuous 6KW rating.
Can this system operate off-grid and with solar panels?
Yes. The Apollo C Series 15kWh All-in-One ESS supports grid-tied, off-grid, and hybrid operation modes. It features an integrated MPPT solar charge controller with a PV input voltage range of 80V-500V, making it compatible with a wide range of monocrystalline and polycrystalline solar panel configurations. The system automatically switches to backup power during grid outages and can store excess solar energy for nighttime use.
Can I expand the battery capacity later?
Yes. The Apollo C series uses a modular design that allows you to add battery modules over time. Each module provides 300Ah at 51.2V. Capacity can be scaled from 5kWh up to 30kWh (or higher depending on the configuration) by stacking additional modules without replacing the existing system. This modular approach protects your initial investment and allows capacity to grow with your energy needs.
Request a Quote
Get pricing and specifications for this product.
Related Products

Apollo A Series 5kWh All-in-One ESS
Model: SCAP-A-51.2-100
- Power
- 6KW
- Battery Input Voltage
- 51.2V
- Inverter Output Voltage
- 230V
- Max PV Input Power
- 27A/9000W

Apollo A Series 10kWh All-in-One ESS
Model: SCAP-A-51.2-200
- Power
- 6KW
- Battery Input Voltage
- 51.2V
- Inverter Output Voltage
- 230V
- Max PV Input Power
- 27A/9000W

Apollo A Series 12KW 10kWh All-in-One ESS
Model: SCAP-A-51.2-200P
- Power
- 12KW
- Battery Input Voltage
- 51.2V
- Inverter Output Voltage
- 230V
- Max PV Input Power
- 27A/2*7500W

Apollo A Series 15kWh All-in-One ESS
Model: SCAP-A-51.2-300
- Power
- 6KW
- Battery Input Voltage
- 51.2V
- Inverter Output Voltage
- 230V
- Max PV Input Power
- 27A/9000W
