Electrolyte circulation system

sun | air

The electrolyte circulation system sun | air pumps filtered ambient air via a hose system into the lower area of the battery cell. The air bubbles released there rise in the electrolyte and thus lead to an even distribution of the electrolyte density in each cell.

The necessity of this process is particularly evident in applications for the storage of renewable energies. There, the cyclical charging and discharging of liquid lead acid batteries creates an electrolyte stratification, which can only be compensated unreliably and with disadvantages during operation without a circulation system. Among other things, stratification causes uneven loading and faster ageing of the battery.

Due to the functional principle of the sun | air, the electrolyte stratification can be reliably cancelled, so that the battery service life is increased. In addition, the operating costs can be significantly reduced compared to conventional batteries.

Area of Application

  • Village power supply
  • Emergency power supply (UPS)
  • Network services / Large storage facilities

Product data:

Product group Components & Accessories


Your advantages

  • Long-term safe operation of the battery system by minimizing capacity losses.
  • Cost reduction by 15 % due to increased charging efficiency compared to conventional battery systems in cyclic applications
  • Simple and quick installation possible without special prior knowledge
  • Significant reduction of maintenance costs by a factor of two to four due to lower water consumption
  • Increases the service life of the entire battery system by dissolving the electrolyte stratification and extends the battery replacement intervals



1.9 MB | pdf-file
1.9 MB | pdf-file

Technical documentation

4.2 MB | pdf-file
1.4 MB | pdf-file

Enquiries / Questions?
For question or product request please fill out our contact form

Accessories & options

grid | power V L - view details

grid | power V L

Low-maintenance, vented, stationary lead-acid battery with outstanding cycle stability and long service life, suitable for applications with unreliable power supply and long discharges.

More information