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Who's your electricity provider and what's your tariff?

 
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Electricity, Tariffs, Monitoring & Providers
Last Post by Transparent 1 minute ago
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13/08/2025 12:53 pm  

Posted by: @old_scientist
↑

Is it best to cycle daily on a 80-20-80% regime

That's what most people do if the system offers such a configuration.

 

Posted by: @old_scientist
↑

and how does the charge / discharge rate affect the battery given it can charge at 1.7kW, 3.3kW or 5kW?

There's an obvious risk of damage due to over-charging if your inverter/charger is permitted to reach the 100% level whilst still delivering maximum current.

It's best if the charger successively reduces the current as it approaches 90%.
But very few do this...
... even if the inverter manufacturer has stated that his product 'is compatible with' your chosen battery unit.

Whether the BMS can offer protection will depend on how much current it can shift away from the cells that reach their peak-voltage first.
Most BMS units are passive. They detect the cell with the highest voltage and burn off some of this using a resistor.

I prefer active BMS units, which take energy from the cell with the highest voltage, and deliver it to that with the lowest voltage.

 

If the general public were better informed on such matters, then I'd expect the inverter/charger manufacturers to include a reduced-current feature when approaching maximum charge.

But there are very few consumers who would even understand the meaning of such a feature if it appeared on the specification sheet.
Useful Energy Technology is being held back by lack of knowledge.

Save energy... recycle electrons!


   
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