I'm not aware of any upper end wiggle room on these units. If you're trying to up the voltage on a pack that is being undercharged due to cell count, you could split the pack in half and charge each half? Some folks use two of these chargers in tandem.

Question for anyone who has dug deep into the Chevy Volt Gen1 chargers. Some of the docs available here refer to master and slave modes -- has anyone gotten that mode working? I have two of these, driven using Lilygo T-CAN485 boards. Rather than driving them totally independently, I would really lik...