Li-Ion pack and MPPT charging current

[erik.calco]

If you want to use your MPPT to charge a small Li-Ion pack you build (3S5P), how would you manage current flow?

If using overcurrent protection, what is a cheap but reliable option?

Can you regulate current? If I put my 18650s in my charger, I use 500mA per cell. 1000mA is an option, but was told it is not best long-term for the health of the cells. Current appears to fluctuate a lot from the PV.

 

[gnubie]

If was going to do it I'd simply set the current limit in my Victron SCC to what ever is appropriate since this is a feature of the Victron SCCs.

For a lot of SCCs the current limit can not be adjusted. If the panels supply enough power to push 50 amps at the load, then that is what will happen. The way to limit the current in that case is to select the right size of solar array / panel.