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Thread: Saturday at home, installing an inverter

  1. #191
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    Is there a way of calculating approximate back up time when battery banks are connected in parallel? (Total of eight 6volt batteries 240Ah)

  2. #192
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    Quote Originally Posted by blackknight72 View Post
    Is there a way of calculating approximate back up time when battery banks are connected in parallel? (Total of eight 6volt batteries 240Ah)
    That is at 2000 Watt consumption. I would also like to know if it is okay to add a second bank at a later stage. Will it damage the first group of batteries?

  3. #193
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    Nice simple calculator

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    blackknight72 (08-Jul-15)

  5. #194
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    That is

  6. #195
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    My inverter installation is almost complete. However when I switch the kettle on with the mains on , the inverter beaps with a message indicating overload. Why does this happen when the mains are supplying. I connected the kettle on another plug point still with mains on and there was no problem at all. Any clue what could lead to this?

  7. #196
    Diamond Member tec0's Avatar
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    I know in older homes if you turn something on like a kettle the lights would "dim" for a second and go normal again. Could it be that turning on the kettle creates a dip in the power flow for a second that causes the beep?
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    Diamond Member Justloadit's Avatar
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    You may have a UPS inverter, in other words the load is always supplied by the inverter, and the battery is always on charge/stand by, so effectively the load can then not exceed the UPS rating at any time.
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  9. #198
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    Quote Originally Posted by Justloadit View Post
    You may have a UPS inverter, in other words the load is always supplied by the inverter, and the battery is always on charge/stand by, so effectively the load can then not exceed the UPS rating at any time.
    It is an Axpert 3KW MKS plus.

    Interesting enough the Inverter doesn't bleep when i use the same kettle in other power points.

  10. #199
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    Interesting enough the Inverter doesn't bleep when i use the same kettle in other power points.

  11. #200
    Diamond Member AndyD's Avatar
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    I'm not sure why that would be.

    Did you sort out the problem with the inverter error code indicating overvoltage on the batteries? What was the cause out of interest?
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