Changing voltage

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Bobin
Forum Junior Member
Posts: 1
Joined: Wed Sep 30, 2020 10:54 pm
My RE system: Flex one
J.

Changing voltage

Post by Bobin »

Dear all
Some of my batteries have died!!!
Thus trying to change my 48v system to 24v.
Changed all the settings on the flex 80 inverter but the mate 1 won't play ball.
Is there a way of hard reset?
raysun
Forum Emperor
Posts: 4624
Joined: Tue Jul 26, 2016 5:57 am
My RE system: Flexpower Two: (2) FXR3048A, (2) FM80, MATE3s, FlexNetDC
SimpliPhi 48-3.8 (6 @ 48v)
Outback IBR3 battery enclosure
REC Alpha 440W panels - 2 arrays: each of 4 strings of 2 in series
Honda EU7000is gas fuel generator

Re: Changing voltage

Post by raysun »

The Flexmax 80 charge controller may be adjusted to a new battery voltage. The Mate will work automatically at any voltage from 12V - 48V nominal.

However, if the system has an inverter, it will only operate at a fixed nominal voltage. A 48V inverter won't work with a 24V battery.
PaulMillner
Forum Member
Posts: 19
Joined: Tue Dec 10, 2019 6:10 pm
My RE system: GS8040A, four Samsung SDI ESS Energy Storage Battery 16S 60 Volt - Mega 3.3 kWh, Firman 5.5 kW natural gas electric start generator
Location: Berkeley CA
Contact:

Re: Changing voltage

Post by PaulMillner »

>> if the system has an inverter, it will only operate at a fixed nominal voltage. A 48V inverter won't work with a 24V battery.

I think that's NOT true for the Radian inverter... you can choose 24 volts, 36 volts, 48 volts, or 60 volts in... a very flexible platform!

Paul in Berkeley
raysun
Forum Emperor
Posts: 4624
Joined: Tue Jul 26, 2016 5:57 am
My RE system: Flexpower Two: (2) FXR3048A, (2) FM80, MATE3s, FlexNetDC
SimpliPhi 48-3.8 (6 @ 48v)
Outback IBR3 battery enclosure
REC Alpha 440W panels - 2 arrays: each of 4 strings of 2 in series
Honda EU7000is gas fuel generator

Re: Changing voltage

Post by raysun »

Hmmm...

I've not heard that before.

This from the Radian installation manual: "The Radian inverter/charger is designed to work with a 48-volt battery bank. Before constructing a battery bank, confirm the nominal voltage of individual batteries."

This from the Radian spec sheet: "DC Input Voltage Range: 40 to 64VDC"
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