Strong offer for private individuals

Photovoltaic systems can be found on more and more house roofs. With a suitably dimensioned storage system, you can also use the electricity you produce yourself at night or even during a power failure. The German company FM-Solar is known for importing PV batteries with its own label from China. Since the seller buys these in very large quantities, he can offer cheaper prices than the competition. Despite being imported from China, the batteries have the necessary CE and UN certifications.

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You can get a 10 kWh battery storage unit from the dealer’s eBay shop for currently only 2550 euros. Since these are currently in the pipeline, the waiting time is about one to two months according to the product page. However, due to problems in the supply chain, delivery times may be longer in some cases. Interested parties must therefore bring patience. Therefore, the dealer allows a withdrawal from the purchase during the waiting period. In this case, you will get your money back in full.

However, only private customers can order due to the elimination of VAT (since January 1, 2023). As a result, no VAT is shown on the invoice. Also, one should not underestimate the weight of the package of almost 100 kg, which is brought by a forwarding agency.

Electricity storage is flexible and expandable

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Battery storage from FM-Solar is compatible with many commercially available inverters, including microinverters from the manufacturers Growatt, Deye, SMA, Victron, Solis, Goodwund and Sungrow. However, the storage system does not work with high-voltage inverters.

The battery is LiFePO4 cells with built-in battery management function. LiFePO4 stands for the latest generation of lithium cells from BYD. The power storage is intended for wall mounting and is compatible with most inverters with a 48 V / 51.2 V battery connection.

The system can be expanded to a total of up to five devices, i.e. 50 kWh. The dealer points out that “subsequent capacity upgrades are possible, but all units then always behave like the oldest battery.” For this reason, FM-Solar recommends planning the battery to the extent that personal needs are met to cover