One of our customers bought a BlueSmart IP65 12v 15amp charger to charge his SOK 12v 206Ah battery. Each time the charger stays in bulk only few seconds and switch to absorb. The app shows a battery voltage of 13,3v and a current of 1,1 amp. The SOK app shows the same data with and SOC of 33%
SOK suggest an absorb voltage between 14,4 and 14,6v. So we ask the customer to change the default parameter to 14,5v and retry. Same result the charger switch to absorb after few seconds and give only 1,1amp to the battery.
The battery charge normally with Victron 150/100 Smartcharge controller, so we suppose the Battery BMS is OK.
Any idea on what is the problem?