Checking And Maintaining The Battery - SMA SUNNY ISLAND 4.4M Operating Manual

13 Cleaning and Maintenance
13.5

Checking and Maintaining the Battery

Danger to life due to explosive gases
Explosive gases may escape from the battery and cause an explosion.
• Protect the battery environment from open flames, embers and sparks.
• Install, operate and maintain the battery in accordance with the manufacturer's specifications.
• Do not burn the battery and do not heat it beyond the permitted temperature.
• Additional measures for lead-acid batteries: Ensure that the battery room is sufficiently ventilated.
Chemical burns due to battery electrolyte
If handled inappropriately, battery electrolyte can leak from the battery and cause irritation to the eyes, respiratory
system and skin.
• Install, operate, maintain and dispose of the battery according to the manufacturer's specifications.
• Whenever working on the battery, wear suitable personal protective equipment such as rubber gloves, an
apron, rubber boots and goggles.
• Rinse acid splashes thoroughly for a long time with clear water, and consult a doctor immediately.
• If acid fumes have been inhaled, consult a doctor immediately.
Danger to life due to burns caused by electric arcs through short-circuit currents
Short-circuit currents in the battery can cause heat build-up and electric arcs. Heat build-up and electric arcs may
result in lethal injuries due to burns.
• Remove watches, rings and other metal objects prior to carrying out any work on the battery.
• Use insulated tools for all work on the battery.
• Do not place tools or metal parts on the battery.
• Observe all safety information of the battery manufacturer.
Risk of burns due to hot battery components
Improper battery connection may result in excessively high transition resistances. Excessive transition resistances
give rise to localized heat build-up.
• Ensure that all pole connectors are connected with the connecting torque specified by the battery
manufacturer.
• Ensure that all DC cables are connected with the connecting torque specified by the battery manufacturer.
Procedure:
1. Check whether the current state of the battery corresponds to the expected state.
2. If the current state of the battery does not correspond to the expected state, find and eliminate the causes of this
deviation.
3. Maintain battery according to battery manufacturer's specifications.
130 SI44M-80H-13-BE-en-15
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SMA Solar Technology AG
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