Solar Batteries for Installers
Solar Batteries
Solar batteries are the component that allows a photovoltaic system to become more than just instant production: they offer energy storage, autonomy during grid failures, and greater control over daily electricity consumption.
At PV Partner you will find low and high voltage solutions, suitable for residential, commercial and off-grid installations, with state-of-the-art lithium technologies and compatibility with the main inverters on the market.
We work with Dyness, Huawei LUNA, and Fox ESS, three leading manufacturers in the lithium battery industry.
These brands stand out for their stability, high safety, and optimized discharge depth, guaranteeing a long service life and reliable performance in hybrid systems, self-consumption, and fully autonomous solutions.
The available batteries are designed to offer efficient and safe storage. They allow you to store the energy produced during the day for use at night or in case of power grid failures. We offer modules ranging from 5 kWh to 15 kWh, in many cases expandable, to adjust the system capacity to the needs of each installation.
At PV Partner, we offer low-voltage (48V) solar batteries — ideal for flexible projects and off-grid solutions with Victron inverters — and high-voltage batteries for modern self-consumption systems, compatible with Huawei and Fox ESS inverters.
Whether you need a battery for solar panels for home use, a higher-capacity module for your business, or an expandable system for self-consumption with a hybrid inverter, PV Partner helps you compare options and select the most suitable battery for your projects.
Frequently Asked Questions about Solar Batteries
A solar battery stores the energy produced by photovoltaic panels, allowing it to be used at night, during grid failures, or in autonomous systems
A typical household needs between 5 kWh and 10 kWh for daily self-consumption. Homes with higher consumption may require 12 kWh to 15 kWh, especially if they use a heat pump or electric vehicle chargers.
Low-voltage (48V) batteries are more flexible and suitable for hybrid and off-grid systems. High-voltage batteries offer greater efficiency, better performance, and integration with modern on-grid inverters.
Charging time dependes on battery capacity and inverter power. On average, a 5 kWh solar battery (such as the Huawei, Fox ESS or Dyness) takes between 2 and 5 hours to charge with good solar prodution. Larger batteries, such as the Fox ESS EP12, may require 3 to 5 hours, depending on the power available in the system.
Yes. The battery can be installed as a backup system and charged from the grid or a hybrid inverter. But there are only energy savings when there is solar prodution.
Most solar batteries last between 10 and 15 years, with over 6000 charge and discharge cycles, depending on the brand and operating conditions.
Yes. The batteries don´t depende on direct solar radiation, but rather on the energy coming from the photovoltaic system. Even on cloudy days, if the panels produce any energy, the battery can charge partially or fully
In most cases, yes. The batteries sold by Pv Partner, such as the Huawei LUNA, Fox ESS, and Dyness, are modular and allow for capacity increases later. You can start with 5 kWh and add more modules as consumption grows or when you want greater autonomy.
Lithium batteries for solar energy require virtually no maintenance. The internal battery management system (BMS) controls charging and discharging, and there is no need to add fluids or perform regular interventions. It is only recommended to periodically check the condition of the electrical installation and ventilation of the location.