The UltraFlex is a 48 V battery bank & BMS provided by Ecoult. The technology is considered to be advanced lead-acid because the negative electrode of a traditional lead-acid battery is enhanced with a carbon treatment to create an ultracapacitor within each cell that changes the chemistry and performance to allow the battery to operate in continuous partial SOC, where internal resistance is lower.
The UltraBattery technology was invented by Australia’s CSIRO and is now commercialised by Ecoult in Australia, Furukawa Battery Company in Japan, and East Penn Manufacturing in the US. The batteries for the UltraFlex system are manufactured in East Penn’s manufacturing plant in Pennsylvania and the BMS, software and racking is designed and made in Australia.
|Battery Name||Ecoult UltraFlex|
|Technology Class||Advanced Lead Acid|
|Maximum Charge Rate||13.9 kW|
|Maximum Discharge Rate||13.9 kW|
|Rated Capacity (@ 100% DOD)||14.1 kWh @ C10||9.9 kWh @ 1C|
|Recommended DOD||60% (twice daily cycling), 50% (accelerated testing)|
|Weight (inc. racking)||771 kg|
|Size (inc. racking)||840 L (cabinet holds up to 28.2 kWh)|
The unit is connected to an SMA Sunny Island inverter that will charge/discharge the batteries.