Appendix C - Preventive Maintenance; Recommended Inverter And Battery Care; Rv/Marine Off-Season Storage - Magnum Energy MM Series Installation And Operation Manual

Appendix C - Preventive Maintenance

Appendix C - Preventive Maintenance

Recommended Inverter and Battery Care

The MM Series inverter is designed to provide you with years of
trouble-free service. Even though there are no user-serviceable
parts, it is recommended that every 6 months you perform the
following maintenance steps to ensure optimum performance and
extend the life of your batteries.
Warning: Prior to performing these checks, switch both the
AC and DC circuits OFF.
• Visually inspect the batteries for cracks, leaks, or swelling -
replace if necessary
• Use baking soda to clean and remove any electrolyte spills or
buildups
• Check and tighten all battery hold down clamps
• Clean and tighten (10 to 12 foot pounds) all DC terminals (bat-
tery and inverter) and connecting cables
• Check and fill battery water levels (Liquid Lead Acid batteries
only)
• Check individual battery voltages (replace those that vary more
than 0.3 VDC of each other)
• Check all cable runs for signs of chafing - replace if necessary
• Check the inverter's cooling vents - clean as necessary

RV/Marine Off-Season Storage

When placing your the coach or boat into seasonal storage, it is
recommended that you perform the following to ensure the system is
properly shutdown (or properly configured for seasonal storage). This
is especially important for maintaining the batteries.
• Perform the recommended maintenance steps noted above
• Fully charge the batteries
• Connect shore power (if available) and verify the breaker to the
battery charger is switched ON
• Verify the inverter is switched OFF
• Switch OFF all unnecessary AC and DC loads
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