Service Information
Document Title:
Function Group:
Information Type:
Date:
Safety when working with
batteries
191
Service Information
2014/3/20
Profile:
BHL, BL70 [GB]
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Safety when working with batteries
Figure 1
Battery charging
Batteries contain sulphuric acid which is very corrosive to the human body and parts of the machine. In addition, batteries
give off hydrogen gas when they are loaded (supplying electricity) or being charged.
Together with the oxygen in the air, hydrogen gas forms a very explosive mixture.
This combination, corrosive acid and explosive gas, means a high risk of accidents during all work with batteries used in
vehicles.
Therefore, it is very important that you take great care and follow the rules below when you are working with batteries.
Follow these instructions when charging batteries:
Batteries give off explosive gases. Never smoke near batteries.
Figure 2
Do not smoke near batteries!
Begin by disconnecting the ground lead when removing a battery. In order to reduce the risk of sparks that can
cause fire, always connect the ground lead last when fitting a battery.
Never tilt a battery to any great extent in any direction. Battery electrolyte may leak out.
Do not connect a discharged battery in series with a fully charged battery. The current surge can cause the batteries
to explode.
Do not allow metal objects (such as tools, rings, wristwatches) to come in contact with battery terminals. Risk of fire
and personal injury.
Always cover the top of the battery with a rag or other non-conducting material when you work close to the
batteries.