| Checking electrolyte level |
WARNING | Always use genuine sealing plugs in battery openings to guarantee the sealing of the various battery cover systems. Only use genuine sealing plugs of same construction if lost or damaged. |
| The plugs must be equipped with an O-ring seal. |
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| A correct electrolyte level in the battery is an important factor in ensuring a long battery service life. |
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| Batteries with visible min. and max. markings require only a visual check of electrolyte level from the battery exterior. |
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| The electrolyte level must be above the minimum marking but not exceed the max. marking. |
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| The sealing plugs must be unscrewed on batteries if the exterior min. and max. marking are difficult to recognize, or the electrolyte level is not visible due to the opaqueness of the battery housing. It is then possible to check the electrolyte level by performing a visual check of the inner battery. |
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| The electrolyte level must align with the internal electrolyte level marking (horizontal ridge). This equates to the outer max. marking. |
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