Checking electrolyte level - batteries with sealing plug
CAUTION:
- Observe accident prevention directions when handling battery acid Electrolyte: .
- Appropriate safety clothing is required Eye protection and protective clothing: .
- Illuminate the inner part of the battery housing only by using a flashlight.
- Never illuminate the interior of the battery housing using a naked flame.
- Never handle a naked flame or a burning cigarette close to batteries.
Maintaining the correct electrolyte level in the battery is an important factor affecting the length of the batterys service life.
- Batteries with visible minimum and maximum marks require only visual inspection from the outside of the battery to check the electrolyte level.
- The electrolyte level must be above the min marking but may extend only as far as the max marking.
CAUTION:
- To ensure proper sealing of the different battery plug systems, it is necessary that the original battery plugs are threaded into the battery openings. In case of loss or damage, only original sealing plugs of the same type may be used.
- The plugs must be equipped with an O-ring seal.
- Unthread the sealing plugs on batteries which do not have clearly visible min and max markings or have an opaque housing so that the electrolyte level cannot be checked.
- Check electrolyte level by visually checking the inside of the battery.
- The electrolyte level must stop at the inside electrolyte level mark (plastic peg). This corresponds to the exterior max. marking.
If the electrolyte level is too low, a loss of battery capacity (power) occurs due to cell plates drying out. If the cell plates are not surrounded by electrolyte (sulfuric acid-water mixture), the plates, plate straps, and cell connectors will corrode. The corrosion damages battery operation, the battery can no longer be used.
If the electrolyte level in the battery cells is too low, the battery must be replaced.
- Replacing battery → Battery, removing and installing .