How do Sorein batteries charge and discharge?Updated 7 days ago

Sorein battery charging and discharge is managed by the Main Unit

Extra Batteries in a Sorein stack are actively managed by the Main Unit, and can charge and discharge simultaneously. If one battery has a lower charge level than the others, the Main Unit detects this and adjusts the charging rate accordingly. This ensures that cells requiring more charge receive it, allowing the entire system to balance and reach 100% capacity.

Charging time changes with the size of the battery stack

It will take longer to charge multiple batteries than it would to charge just one. Think of it this way: when you add battery modules, you're essentially creating one larger battery rather than adding separate, independently charged batteries.

Charging speed is dependent on many factors

The speed at which Sorein batteries charge is affected by many factors:

• Depth of discharge.Deeply discharged batteries charge faster than ones that are nearly full.
  • As a result, charging rate slows significantly when the batteries exceed 80% charge level.
• Temperature. Charging speeds sometimes have to be altered if the batteries are very cold or very warm.
  • In warm temperatures, the Extra Batteries may require the optional Sorein Cooling Fan, in order to reach their maximum charge and discharge rate.
  • G1 Extra Batteries (2.1 kWh capacity) require cooling fans when used with a G2 Main Unit or G2 Extra Inverter. 
• Size of battery stack. Larger battery stacks (banks) can accept more power for recharging, since the input power is spread across multiple batteries. However, large stacks will generally take more time to charge, simply because there's more battery to charge.
• Amount of AC input power.The batteries can charge at up to 1800 watts when the Sorein is plugged into a 20-amp outlet (which supplies AC power).
  • With an Extra Inverter installed, and assuming the Extra Inverter is also plugged into a 20-amp outlet on a separate circuit breaker, the Sorein Power Station can accept up to 3600 watts.
• Amount of DC input power. When charging through the XT60 port, either from solar panels or from a DC-DC charger, the Sorein can accept a maximum of 1,000 watts input power. However, the actual input power into the XT60 port will determine the speed of battery recharging.
• Software settings. If the "Silent Charging" mode is select in the Energy Keeper app, the charging speed will be reduced to a maximum of 750 watts.
• Battery balancing. If one battery is significantly more charged than others, the charge rate may slow so that all the batteries can reach 100%.

Best practices for charging Sorein Extra Batteries

We recommend charging all Sorein Extra Batteries together. This allows the Main Unit to manage and balance all of the batteries automatically.

If one battery is more charged than another, it's OK to put them together in a stack under the Main Unit, for charging.