BMPRO Trek3 Owner's Manual page 23

Adjusting Bulk Voltage
The bulk voltage is the maximum voltage at which the BatteryPlus35 will charge
the battery. The bulk voltage may be adjusted from 13.6 to 14.8V in steps of 0.1V.
WARNING
Changing the bulk voltage may result in the battery overcharging and cause
damage to the battery and in extreme cases may also cause personal harm.
If unsure DO NOT change the default values.
To adjust bulk voltage, enter Set-Up mode, select the advanC menu function and
navigate to the CHargE menu function. Follow the directions in Figure 16.
Figure 16: Adjusting bulk voltage
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