Inane,

Using the program through the computer, the BDI has 5 different settings. Each setting is normally changed over time when the lift is first purchased. 25.6 volts is a little low to reset the BDI. What battery do you have in it and what is the fluid level of each battery. If you have 4 lead acid batteries, you may need to remove cables and test each individually. One low battery could drag the voltage down. If the batteries all check good and you can pull up all battery settings, lower the BDI start up full by 1 to 3 and set the BDI reset to 45%. Good Luck.