Can I use my older batteries with the Blix Ultra or Dubbel?
Any batteries from previous models will not be compatible with the Blix Ultra or Dubbel models. Batteries from the Dubbel and Ultra are not cross-compatible with older batteries (2021 and older), including rear 14Ah batteries. Batteries from previous models such as Sol Eclipse, Aveny Skyline, Packa Genie, Vika+ Flex, and any previous models are not compatible with the Dubbel and Ultra models. This is due to the wiring configuration and communication protocols for the new system.