I have one idea:
The Li-Ion charging method is CC/CV constant current constant voltage,
The SLA (gell) batteries also use the same method(never charge over 13,4v
for a 12 volt battery), witch is supported by Pro-Peak, the only problem i
have to attend is for each Li-Ion cell (3,6) the charging current must never
exced the 4,2 volts per cell, and Pro-Peak only supports 2~6 cell (2~12
So.. if i use for 1 Li-Ion 3,6v the 2 Pb cell Pro-Peak configuration witch
gives max 4volts lower then 4,2v (max Li-Ion cell voltage i have a safe
charge (0.2v safe margin).
for to Li-Ion Cells 2x4,2=8.4(max voltage) use 4 Pb cell 4x2=8v (0.4v safe
and so on...