Using two 12V batteries in series

Hi Norman,

Thank you for your inquiry. :slight_smile:

Unfortunately, the maximum voltage is limited up to 15V in the rule 1.3.4. So you can use two 12V batteries in parallel, but not series. Please refer here for more details about the use of batteries.

Best regards,
Shoko Niwa (2018 OnStage TC and OnStage OC chair)