• Details – opens the battery details screen to show more information and operations
Pressing the ‘Go’ button will start the selected operation using the current setup.
Pressing the operation select button will pop-up an operation list where you can select a different charger
operation.
Figure 7 - Select Operation Popup
Monitor
Pressing the Monitor button will toggle the Monitor operation on and off. Monitor activates the charge
circuitry in the charger and allows you to see the actual pack and cell voltages. The live Monitor data is
also used to provide more precise operation time estimates.
Accurate, Normal, and Fast Charge
These standard charge operations will perform a charge with the charge rate specified in the
corresponding user setting. The max cell voltage setting will determine the termination voltage.
For Lithium chemistries, termination current is set to C/20, C/10, and C/5 for Accurate, Normal, and Fast
Charge, respectively. So Accurate Charge will have the longest balance cycle at the end, but will also
charge the battery to maximum capacity. Fast Charge will perform a much shorter balance cycle and
terminate more quickly, but with slightly less capacity. Normal Charge is somewhere in the middle. Each
of the charge currents are individually configurable in BUMPTag settings.
TIP: During any balanced charge cycle, the charger will monitor the cell internal
resistance measurements – if they exceed the warning threshold, a warning will
be displayed at the end of the charge cycle.
To change the Internal Resistance warning threshold, go to Options->Analyze
Warnings (default is 200% of Rated IR).
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