15 kWh Lithium Ion Solar Batteries Description
15 kWh Li-ion battery is a high capacity and high energy density Li-FePO4 battery, which is made of A-grade 16pcs 3.2V 280Ah cells connected in series. After series connection, it is 51.2V 280Ah. It is widely used in solar systems and home energy storage systems due to its high safety, reliability and conversion efficiency of more than 98%.
15kWh Li-FePO4 Battery Features
Large capacity: Different from 5kWh, 10kWh batteries, the large capacity of 15kWh brings you more uses, so you don’t need to worry about connecting a lot of batteries in parallel due to the small capacity of a single battery. It also saves the trouble of connecting batteries in parallel. The stability and safety of the battery system is improved.
Move more easily: The optional wheels make it easier and faster to move the whole battery, and one person can easily move the battery on a flat surface.
48V low voltage battery: The 48V low voltage battery can be adapted to most of the household PV inverters and chargers on the market. If you need a high voltage battery, we also have other models for you to choose.
Long service life: The battery cells can be charged and discharged at least 6000 times at a discharge depth of 80%. And it can also do the maximum 100% discharge depth. Under normal use, the battery life can be as long as 15 years.
Strong compatibility: 15kWh battery management system with RS485, RS232, CAN communication protocol port. It can communicate with most brands of solar inverters. For example Pylontech, Growatt, Deye, SRNE, Sofar, Solis.
Lithium Off Grid Battery 15 kWh
In some remote areas or in scenarios like telecom base stations, monitoring stations, outdoor lighting, lithium batteries are indispensable for off-grid solar power systems. The electricity generated from solar panel during the day needs to be stored in the batteries. Then there is power supply during continuous rainy days and at night. Having a sufficient number of lithium batteries can enhance the stability of the entire solar power system. It ensures uninterrupted power support.
Specifications of 15 Wh Lithium Ion Storage Battery
| Nominal Voltage: | 48V （16S 51.2V ) |
| Nominal capacity: | 280Ah |
| battery type: | 16S1P Lifepo4 3.2v 280AH |
| weight: | ≤150Kg |
| Dimensions: (LxWxH) | Dimensions of the battery case：975*460*280mm |
| Charging end voltage: | 58.4V16S |
| Connector | M8 bolt screw |
| LED display | LCD display (voltage, capacity, watts, etc.) |
| Low Voltage Protection: | 40V(pack)/2.5V(cell) |
| charging mode: | 0.2C(0.5A) Constant current/constant voltage |
| Communication protocol: | RS485/RS232/CAN |
| Maximum Continuous Discharge Current: | 250A |
| Discharge Over Current Protection: | 250A |
| Over Voltage Protection: | ＞57.6V |
| Operating temperature: | Charge：0~45℃ |
| discharge：-10~55℃ | |
| Storage temperature (60-80% SOC storage): | -10~45℃ |
| Cycle life: | More than 6000 times – 8000 times |
| BMS Protection: | Overcharge, overdischarge, overcurrent, short circuit |
Functions of the 15 kwh battery
Intelligent heating system: When the ambient temperature drops below 0℃ the battery will start the automatic heating system, which can improve the efficiency of the battery’s energy conversion in the low temperature environment.
LED display: it can display various information about the battery and help you set the parameters of the battery. Also, there will be a fault code indication when the battery is faulty, which helps you to solve the problem quickly.
Active balancing function: the battery has a built-in battery balancer, which ensures the consistency of all the cells during charging and discharging to maximize the utilization of the battery, and also ensures that the battery has a long service life.
Expandable to a larger battery capacity: If the 15 kWh battery capacity can’t meet your power needs, then you can choose 2, 3 up to 16 batteries in parallel to form a larger energy storage system.
DC Circuit Breaker: The battery case is equipped with a DC circuit breaker, which can automatically shut down the battery in case of emergency, cutting off the connection between the battery and other equipment to ensure the safety of the circuit system. The battery can also be turned off manually when it is not in use for a long time.
Packaging of 15kWh battery
The outer box of the battery is packed with thick wooden boards to avoid the damage caused by the extrusion and impact of the package and the battery in the process of transportation. At the same time, the bottom of the package also has a loading and unloading position for forklifts, making transportation more convenient. The battery package also has a locking design, which makes it easy to open and check the battery when needed.
How to connect more 15 kWh batteries in parallel?
Connect the positive terminal of the battery to the positive terminal of the next battery with a cable, the negative terminal of the previous battery to the negative terminal of the next battery, and so on. Connect the positive terminals of all the batteries in parallel in one line, and the negative terminals of all the batteries in parallel in another line. The positive and negative terminals of the outputs are connected to the battery ports of the PV inverter. Then connect the RS485 communication interfaces of all the batteries in this way. The CAN port of the main battery is connected to the communication port of the PV inverter via an RJ45 cable. This completes the parallel connection of multiple 15kw batteries.
