5000W 5.21kWh All-in-One Solar Energy Storage System UPS Portable Power Station

Product Overview

AJ-0505C is a space-saving lightweight hybrid all-in-one energy storage unit, designed specifically for small-space residential and light commercial solar projects. It integrates a 5kW pure sine wave inverter, wide-range MPPT solar charger and compact 5210Wh LiFePO4 battery pack into a slim cabinet with only 62kg net weight, a 39% weight reduction versus the larger AJ-0510C 10kWh model. Delivering 5000W continuous AC power and 10000VA peak surge power, this unit supports dual AC + PV simultaneous charging, with robust -20°C cold discharge capability and 10ms UPS-level seamless grid switching. The smaller footprint and lighter weight cut installation labor and space requirements, making it the ideal entry-level all-in-one storage choice for tiny homes, suburban small villas, home offices and cabin off-grid power systems.

Product Description

The AJ-0505C is a lightweight, space-saving hybrid all-in-one energy storage solution purpose-built for compact residential and light commercial solar projects. Adopting a slim and integrated cabinet design, the unit consolidates a 5kW pure sine wave inverter, wide-range MPPT solar charger and high-density 5210Wh LiFePO4 battery pack into one streamlined structure. Weighing only 62kg, it achieves a 39% weight reduction compared with the larger 10kWh AJ-0510C model, delivering outstanding portability and space efficiency without compromising core power performance.

Capable of outputting 5000W continuous AC power and 10000VA peak surge power, this compact ESS reliably handles daily electrical loads and instantaneous power spikes. It supports simultaneous dual charging via solar PV and grid AC, maximizing energy utilization and offering flexible power replenishment for different installation environments. Engineered for superior environmental adaptability, the system features robust cold discharge performance at temperatures as low as -20°C and delivers 10ms UPS-level ultra-fast switching, ensuring seamless, uninterrupted power supply during sudden grid failures.

Its minimized footprint and lightweight construction greatly reduce installation difficulty, labor costs and space occupation, enabling quick and flexible deployment for various small-scale solar systems. As an optimized entry-level all-in-one energy storage option, the AJ-0505C perfectly fits tiny homes, small suburban villas, home offices and remote cabin off-grid power systems, providing cost-effective, stable and maintenance-free solar backup power for lightweight residential and commercial energy scenarios.

1. Ultra Compact & Lightweight Body, Lower Installation Cost

Compared to the 10.24kWh AJ-0510C model, this AJ-0505C adopts a miniaturized internal cell layout: cabinet depth shrinks from 947mm to 625mm, net weight drops from 101kg to just 62kg. It fits narrow utility rooms, garage side cabinets and small equipment closets that cannot accommodate large heavy energy storage cabinets. Single-person handling and placement are possible, cutting extra manpower costs during on-site installation.

2. Entry-Level Cost-Effective Energy Storage Solution

5210Wh moderate capacity perfectly matches households with medium-low daily power consumption. It retains all high-end core configurations of the large-size model — including 6000W max PV input, 10000VA surge power, -20°C low-temperature discharge and 6000-cycle long-life LFP cells — at a much lower total investment threshold. It is the best budget-friendly all-in-one storage option for families seeking solar self-consumption and basic blackout backup without oversized excess capacity.

3. Complete Consistent High-End Core Performance with Big Models

Despite the smaller size, it reserves full high-performance hardware specs identical to the larger AJ-0510C:

· Max 6000W solar PV input & 4600W AC fast dual charging

· 10000VA surge power to start heavy inductive loads like air conditioners

· Tiered intelligent graded overload protection to avoid unexpected shutdown

· Ultra-wide -20℃~55℃ discharge temperature range for all-climate use

· 10ms instant UPS switching to protect critical loads during grid failure Users can enjoy industrial-grade stable power performance without paying extra for unused large-capacity battery storage.

4. Long-Life Safe LiFePO4 Cell Pack for Light Daily Loads

Premium grade-A LiFePO4 cells deliver ≥6000 deep cycles under 90% DOD standard testing, fully matching the lifespan standard of high-capacity cabinet models. The built-in full-protection BMS monitors cell voltage, temperature and current in real time, preventing overcharge, overdischarge, short-circuit and overheating risks. For medium daily household power loads, this compact battery pack achieves balanced service life and cost efficiency, avoiding capacity waste of oversized 10kWh systems.

5. User-Friendly Standardized Configuration for Small Scenarios

Equipped with a clear LCD front HMI for real-time running data checking, plus dual waterproof AC output jacks (10A + 16A) to power multiple household devices at the same time. Auto 50/60Hz frequency detection and global multi-voltage AC output (208/220/230/240V) fit residential power grids worldwide. The compact cabinet design supports wall-adjacent narrow-space placement, greatly expanding applicable installation scenarios that large heavy storage units cannot cover.

1. Tiny Homes & Small Family Residences

Suitable for small apartments, tiny houses and suburban homes with daily power consumption below 15kWh. The compact slim cabinet fits narrow garages and small storage rooms, storing daytime solar power to cover lighting, refrigeration, TV and small air conditioner daily usage without excess redundant battery capacity.

2. Home Office & Mini Retail Stores

For small home offices, independent studios and mini convenience shops with moderate power loads. Light 62kg weight allows flexible placement under counters or in side storage rooms, providing peak-shaving solar self-consumption and short-term emergency backup power.

3. Off-Grid Cabins & Weekend Holiday Cottages

Perfect for seasonal mountain cabins, lakeside vacation houses and rural weekend retreats. The -20℃ low-temperature discharge performance supports stable power supply in cold winter, while compact size saves limited indoor space of small vacation buildings.

4. Light Remote Field & Temporary Mobile Power

Matching small field monitoring equipment, temporary construction site offices and outdoor camping base power supply. Light weight simplifies transportation and installation at remote sites, and the dual waterproof AC outputs support multiple small field electrical devices simultaneously.

1. Place the unit in dry, ventilated narrow indoor space; the slim depth design allows side-wall close installation, reserve 10cm clearance on the top and two sides for heat dissipation.

2. Complete standard L+N+PE wiring: connect rooftop solar panels to PV terminals, municipal grid to AC input, and daily household loads to dual waterproof AC output ports.

3. Switch working modes (off-grid independent power / grid-tied UPS backup) and monitor PV generation, battery SOC and load consumption via front LCD display.

4. Avoid charging under 0℃ or discharging below -20℃ to trigger low-temperature cell protection and shorten service life.

5. For long-term seasonal idle storage (such as holiday cabins unused in winter), maintain battery SOC at 50%~70%, store under dry 10~30℃ environment and recharge every 3 months.

Q1: What’s the core difference between AJ-0505C and AJ-0510C 10kWh model? 

A1: AJ-0505C is a compact entry-level version with 5.21kWh battery, 62kg light weight and slim cabinet depth for small-space installation, targeting families with medium-low daily power consumption. AJ-0510C is the large-capacity 10.24kWh heavy-duty model for big villas and high daily power demand. They share identical inverter, MPPT and safety performance parameters, only differing in battery capacity, size and weight.

Q2: Is this compact model enough to run a household air conditioner? 

A2: Yes, it reserves the same 10000VA peak surge power as the large-capacity model, which provides instant startup current for split air conditioners, water pumps and other inductive heavy loads without voltage drop.

Q3: Can I expand capacity later if my power demand rises? 

A3: This all-in-one unit is an independent compact standalone machine. If you need larger storage capacity in the future, you can select the AJ-0510C 10.24kWh high-capacity model or contact our sales team for multi-unit parallel expansion solutions.

Q4: Is the cold weather performance worse than the 10kWh big model? 

A4: No, they adopt the same LiFePO4 cell formula and BMS control logic, both supporting stable discharge down to -20℃ with consistent low-temperature capacity retention rate.