Change of lead batteries for lithium ones: Pylontech US2000C 48V of 2.4kWh

Change of the lead batteries for lithium ones: Pylontech US2000C 48V of 2.4kWh

The batteries are fundamental part of any self-consumption photovoltaic installation. Thanks to the energy that accumulates in them we can increase our independence from the grid during more hours of the day. With batteries we can dispose the generated energy also during the night, when the panels have stopped producing energy and without depending on the grid and its prices. Traditionally, the acid-lead batteries were installed to accumulate the photovoltaic energy, but little by little as technology was advancing, those batteries were replaced for lithium batteries like Pylontech US2000C 48V. These batteries are much more secure, long-lasting and compact.

Our client had an old, voluminous and not effective acid – lead battery bank. Those batteries occupied a lot of space in the basement, and after a few years of using them, they were at the end of their useful life. This is the reason why he had started to look for other options and found the best alternative in Pylontech US2000C 48V of 2.4kWh batteries

Although replacing a lead-acid battery bank with a lithium one may seem like a simple task, it is actually a process that requires very specific knowledge and technical skills. People used to think that it is something as simple as connecting the batteries to the inverter, but it is essential to follow the proper steps so that everything works safely. It is necessary to correctlydesign this system, connect all their components and, above all, configure the inverter to the correct voltages for the batteries, to avoid any possible damage to the equipment. A badly configured inverter can end up breaking the batteries connected to it, leaving them completely useful. It is a very common mistake for which you can pay too much.

Change of lead batteries for lithium ones: pictures of Pylontech US2000C 48V of 2.4kWh.

Lead batteries vs lithium batteries: Pylontech US2000C 48V of 2.4kWh

At first sight, the main difference between lead and lithium batteries: their size. Some lead batteries have the same capacity as lithium ones, but lead batteries occupy the triple of space and they weight much more than the other ones.

What advantages do the lithium batteries have?

Lithium has a lot of advantages: More capacity, more energy density, less weight and volume, more useful life, short charging period and doesn’t need any maintenance.

Even though the price of these batteries is higher than of the lead ones, the list of their qualities is longer too.


Lead batteriesLithium batteries: Pylontech US2000C 48V of 204kWh
Widely tested and accepted technologyHigh energy density
Easy to recyclehigh efficiency
Lower priceShort charging period
Possibility of an intermediate charge
Long service life (up to 600 cycles of charge and discharge)
Doesn’t need any maintenance.
Light and compact


Lead batteries Lithium batteries: Pylontech US2000C 48V of 204kWh
High weightRequires Battery Management system
High volumeHigher price
Long charging periods
Limited discharge depth
Short useful life (1200 cycles)
Need maintenance

Are you interested in changing your old lead batteries for the lithium ones, like Pylontech US2000C 48V of 204kWh?

This is the moment! Government Recovery, Transformation and Resilience Plan grants remain active until 2023 and subsidize up to €490 per kWh of installed capacity in batteries, which means about 65% from the total cost of the installation storage.

If you have in mind to change batteries like our client from Cartagena, but you have doubts about how to do it, contact us and we will be glad to help you and guide you during the whole process.

If you already know that you want to install batteries, ask us for a quote, without any commitment. We are expert installers with many years of experience and official service of renowned brands like Fronius and Victron.

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