4.0 Maintenance And Troubleshooting; Recommended Inverter And Battery Care; Rv/Marine Off-Season Storage - Magnum Energy MMS1012 Owner's Manual

4.0 Maintenance and Troubleshooting

4.0 Maintenance and Troubleshooting

Recommended Inverter and Battery Care

The MMS Series inverter/charger is designed to provide you with
years of trouble-free service. Even though there are no user-service-
able 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 holddown clamps.
• Clean and tighten (10 to 12 foot-pounds) all DC terminals
(battery and inverter) and connecting cables.
• Check and fi ll 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 chafi ng – replace if necessary.
• Check the inverter's cooling vents – clean as necessary.

RV/Marine Off-Season Storage

When placing your coach or boat into seasonal storage, it is rec-
ommended that you perform the following to ensure the system is
properly shut down (or properly confi gured 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 that the breaker
to the battery charger is switched ON.
• Verify the inverter is switched OFF.
• Switch OFF all unnecessary AC and DC loads.
36
© 2010 Magnum Energy, Inc.