Just got my kids their first RC setup. I'm pretty new to the field, so I was hoping to get some feedback on best practices with the charger.

Current batteries are SMC HCL-HP 3S 6,500 mAh. I'm building a low-voltage alarm that I plan to have set at 3.7 V/cell resting. It will have current monitoring so that it can compensate for sag under load.

I don't care much about fast charging or maximizing the power-per-charge (the packs are already oversized). I care more about maximizing total power delivered over the useful life of the batteries. The charging profile below would be the typically used one, but obviously the charge voltage could be increased if extra capacity was needed.


Charging Profile:
Charge current: 3.2 A (0.49 C)
Charge voltage: 12.15 V (4.05 V/cell)
Charge end current: 10% (0.32 A)
Charge balancing start: 3.85 V/cell
Balance difference: 4 mV
Balance set point: 5 mV
Balance over charge: 0 mV
Balance done delay: 2 min
End condition logic: End current AND balance


Storage Profile:
Voltage: 3.85 V/cell
Storage compensation: 0.01 mV/cell
Accelerated storage: On


Discharging (mostly for capacity testing every few months):
Discharge current: 3.2 A (0.49 C)
Discharge voltage: 3.5 V/cell
End current: 50%
Balance Enable: Off