Hi there, i have a BMV and encounter a problem with charge efficiency. Peukert is set to 1.00 (i have a LiFePO4 Battery with 100AH) and during several weeks the SOC drifts extremly (SOC was shown 78% and i put on the charger but the battery was already full and then it synchronizied) ... the Problem is that if you only have partial charging (over some days/weeks) the SOC will drift away heavily. So i wish that i could set the Charge Efficiency in the BMV to 99.5% or something to have more accurate values.