Yes, that’s completely normal.As the battery approaches full charge, current naturally drops to protect the cells and ensure a longer lifespan. Slower charging at the top is a sign of healthy charging behavior, not a problem.
Typically around 3.55 V to 3.6 V per cell.Once the cell reaches this range, the charger switches to CV mode, and the current decreases more quickly until the battery is fully charged.
Not necessarily. In real-world charging for Lifepo4 battery charger, most chargers don’t keep a perfectly flat “constant current” phase. Many start reducing current earlier to avoid voltage overshoot and to balance the cells smoothly before entering the CV phase for Lifepo4 battery charger.
It’s normal for the charging current to drop gradually as the voltage increases.LFP cells have a very flat voltage curve, so even a small rise in voltage means the cell is already nearing full charge. Internal resistance increases slightly, causing the current to taper off naturally.
