New 'custom battery' option
There's now an option to provide your own charging, floating etc. values if you select 'custom' as the battery chemistry type.
Also I've added a specific 'iTechworld 120X' battery option with its associated set of voltage threshold values as I now happen to have one and the info was provided in the manual. Not necessarily an endorsement of iTechworld, who plan to keep the Bluetooth schema of their built-in BMS as proprietary IP for now, unfortunately.