SMA SI 3.0-11 - Manual (Page 76)

10 Cleaning and Maintenance SMA Solar Technology AG
76 SI30M-44M-60H-80H-BE-en-30 Operating Manual
10.6 Checking and Maintaining the Battery
Requirement:
☐ The Sunny Remote Control is in user mode.
Procedure
1. Check whether the current state of the battery corresponds with the expected state:
• Select the display page Battery on the Sunny Remote Control.
• Select the parameter Cycle and compare the value with the expected nominal energy throughputs.
• Select the parameter Health (SOH) and compare with the expected usable battery capacity.
If the current state of the battery does not correspond with the expected state, carry out the following steps:
• Ensure that the requirements for the ambient temperature of the battery are met (see documentation of the battery
manufacturer).
• Check and optimize the battery management settings.
• If you cannot determine the cause for the deviation, contact the SMA Service Line.
2. Stop the system and switch off the Sunny Island (see Section 6, page 33).
3. Open the load-break switch of the BatFuse and secure against reconnection.
4. Check and maintain the battery (see documentation of the battery manufacturer).
5. Quickly connect the load-break switch of the BatFuse and close the BatFuse (see BatFuse installation manual).
6. Start the system.
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Chemical burns and poisoning due to battery electrolyte
If handled inappropriately, battery electrolyte can cause irritation to the eyes, respiratory system, and skin, and it can
be toxic. This may result in blindness and serious chemical burns.
• Protect the battery enclosure against destruction.
• Do not open or deform the battery.
• Do not throw batteries into fire. Batteries may explode in fire.
• Whenever working on the battery, wear suitable personal protective equipment such as rubber gloves, apron,
rubber boots, and goggles.
• Rinse acid splashes thoroughly with clear water and consult a doctor.
• Install, operate, maintain, and dispose of the battery according to the manufacturer's specifications.
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Risk of injury due to short-circuit currents
Short-circuit currents in the battery can cause heat build-up and electric arcs. Burns or eye injuries due to flashes may
result.
• Remove watches, rings, and other metal objects.
• Use insulated tools.
• Do not place tools or metal parts on the battery.