ZEM Energy Storage Batteries are designed to keep solar panels and household electronics working in the event of an outage or offer up to 40% electricity saving for consumers with solar panels on the roof.
4.6KWH Energy Storage Battery Introduction
4.6KWH Home Energy Storage Battery is a battery pack that can store energy from solar panels during the day. The battery pack can be charged by connecting to a solar panel. However, the battery can also be set using electricity from the grid.
4.6KWH Energy Storage Battery Parameters
The 4.6kWh Energy Storage Battery is a high-capacity residential lithium battery designed for larger home energy systems and higher load applications. Compared with the 2.56kWh model, it delivers nearly double usable energy, higher discharge capability, and better support for multi-device household power demands.
It is ideal for users who need longer backup time, higher solar self-consumption, and stronger system scalability.
ZEM aims to build a high performance, safe, reliable, scalable and economical battery for the home.
| Specification | Parameter |
| Model | EM4608 |
| Total(WH) | 4608 |
| Nominal Voltage(V) | 51.2 |
| Depth of discharge(DOD) | 80% |
| Cycle life | 4000 cycle 80% DOD 25°C |
| Design life | 10 years |
| Discharge voltage(V) | 58.4~40 |
| Charge voltage(V) | 58.4 |
| Max.Charge current(A) | 100 |
| Max.Discharge current(A) | 100 |
| Communication port | RS232/RS485/CAN-BUS |
| Storage Temperature(°C) | 10~25 |
| Altitude | <2000M |
| Humidity | <95% RH |
| Scalable | 25 |
| Protection rating | IP54 |
| Operating termperature(°C) | ﹣10~60 |
| Weight（KG） | 45.0 |
| Dimension（L*W*H）mm | 635*400*192 |
Stable lithium iron phosphate technology ensures:
High thermal stability
No thermal runaway risk
Long service life
Built-in protection includes:
Overcharge protection
Over-discharge protection
Short circuit protection
Temperature control
Cell balancing
Supports:
6000+ cycles (typical residential use)
Long-term stable performance over 8–10 years
Multiple 4.6kWh units can be connected in parallel to build:
9.2kWh
13.8kWh
18kWh+ systems
2.56kWh: compact entry-level storage
4.6kWh: mid-to-high capacity storage (~80–90% more energy)
Suitable for homes with higher daily electricity consumption or larger PV systems.
The 4.6kWh battery typically supports:
More household appliances simultaneously
Higher peak power demand
Better performance for air conditioners, refrigerators, pumps, etc.
Compared to the 2.56kWh unit, it reduces the risk of overload under continuous usage.
While both models support expansion, the 4.6kWh system:
Requires fewer modules to reach 10kWh+ storage
More efficient for medium residential systems
Lower installation complexity per kWh stored
2.56kWh lithium battery: short backup for essential loads
4.6kWh lithium battery: extended backup for whole-home critical circuits
Example:
4.6kWh can support a 500W load for ~8–9 hours
Almost double runtime compared to 2.56kWh system
The 4.6kWh version is better suited for:
3–6kW hybrid inverters
Larger rooftop PV systems
Daily solar self-consumption optimization
The 4.6kWh energy storage battery is widely used in:
Whole-home solar energy systems
Off-grid residential power systems
High-load backup power systems
Small commercial energy storage
Hybrid inverter solar systems
Telecom and emergency power supply
Need more stable and longer backup power?
Choose the 4.6kWh energy storage battery for higher capacity residential and solar applications.
Contact us for OEM customization, inverter compatibility support, and wholesale pricing.
Explore Our 4.6KWH Energy Storage Battery
High energy density, high power density, and high efficiency
The use of active materials with high conductivity, low resistance, and high purity electrolyte
The use of lithium-ion technology to realize the safe operation of the battery system and long life
Intelligent control design, intelligent battery management system (BMS) can effectively detect abnormal situations and protect battery safety
The use of automatic charging and discharging technology to achieve the goal of maximum utilization of active materials and energy storage capacity
Can be paralleled to increase capacity
In a battery, parallel is the number of batteries connected in series. For example, if you have two 12 volt batteries and you connect them in parallel, you will have 24 volts. The capacity of the battery remains the same but you have more power available.
In the case of a DC/AC inverter, it would be possible to connect more than one battery in parallel by using a special device called an isolation diode (see figure below). This is done so that there is no voltage drop when charging or discharging each of the batteries independently.
