JOINT’s home energy storage system (R-ESS) is a high-power home energy storage system designed for whole-home backup and solar self-consumption.
It stores excess solar energy during the day and supplies stable power to your home at night or during grid outages.
With up to 12 kW output, modular LFP batteries, and seamless backup switching, it keeps your home running just like normal, even when the grid goes down.
4.6 kWh
Usable Capacity
8
Modules Connection
26.1 A
Grid AC Output Current
100%
Depth of Discharge
Up to 12 kW output to power air conditioners, ovens, and other high-load appliances.
proactive and passive safety mechanisms
2
2
10 ms
LFP (LiFePO₄)
LFP (LiFePO₄)
51.2 V
1000 V
1000 V
16 kW / 20 kW / 22 kW
8000 W / 10000 W / 12000 W
8000 W / 10000 W / 12000 W
100/200/300/400/500/600/700/800 Ah
97.2%
97.2%
IP65
Find answers to commonly asked questions about our products and services.
Why choose a All-in-One Residential Energy Storage Systems(ESS) instead of building a EV charging station?
Because it is:
1.No construction required.
2.Deploy anywhere within minutes.
3.No land approval / no civil work.
4.Flexible relocation based on peak demand.
5.Emergency response ready.
6.Lower initial investment.
Ideal for customers needing rapid deployment or temporary power.
How many EVs can the ESCS-M charge, and what is the charging power?
The ESCS-M includes integrated DC fast charging capability. Depending on configuration, it supports:
1.Fast charging of 3 vehicles.
2.Power output up to 0~180kW.
3.Continuous charging cycles using energy storage + grid input.
This makes it ideal for temporary or mobile EV charging stations.
How is the ESCS-M transported and deployed?
There are two formats:
Semi-Trailer version → connects to any tractor head.
Vehicle-Mounted version → ready-to-drive integrated solution.
Deployment takes minutes, making it suitable for emergency and temporary power needs.
How long can the ESCS-M provide power?
Power duration depends on:
· Load size
· Charging activity
· Whether the grid or PV is connected
With a 200kWh capacity, it can support:
· Light loads → many hours
· Fast charging → multiple sessions
· Hybrid (grid + storage) mode → continuous operation
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