Serpento COBRA Manual De Usuario página 104

Battery
The battery fluid level is visible by removing the left chassis cover. The level must be kept between the MAX and MIN limits. If the level is below
the lower limit, add distilled water to the upper limit. Tap water is
WARNING
Once the battery is put into use, no diluted sulfuric acid should be poured into the battery any longer.
CAUTION
Do not band, block or change the air vent pipe of the battery. Ensure one end of the air hose is connected closely to the battery fitting and the
other end is always kept open. The air vent pipe should not be mistaken and the battery should be placed in the right position.
Make sure that the polarities of the battery terminals are correctly connected. The red lead must be connected to the positive terminal and the
black lead to the negative terminal. Any mistake in wiring may cause damage to the charging system and the battery itself.
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