One of the main causes of dissatisfaction with the most recent Samsung Galaxy flagship phone has been the batteries. Samsung may be attempting to solve the problem with the Galaxy S26 in part by advancing current battery technology, enabling larger batteries and maybe quicker charging.
According to reports, Samsung and ITM Semiconductor Co. of South Korea have signed a new contract for specialised solutions aimed at extending the lifespan of batteries used in the Galaxy S26 series. The adoption of additional fillers, which strengthen batteries for defence against physical stresses, will be one of these alternatives.
According to Korean news source The Elec, ITM Semiconductor is expected to provide “battery protection circuits” for the Galaxy S26, particularly those manufactured using epoxy moulding compound (EMC) technology. Additionally, according to the report, these circuits will control the charge flow and stop the Galaxy S26’s batteries from overcharging or prematurely draining.
To keep things simple, EMC uses a thin layer of polymeric compounds, such as silica, to help dissipate heat produced during charging or discharging, prevent moisture intrusion, and block electromagnetic interference from other electronic components on the phone’s circuit board. The third factor is the most crucial since heat during charging or rapid draining, as occurs during gaming, causes batteries to deteriorate more quickly.
Notably, according to The Elec, ITM already offers comparable, if less sophisticated, solutions to Samsung’s Galaxy A, Z Fold, and Z Flip series. Additionally, it has experience providing protection circuit module packages (also known as PMPs) for batteries used in previous Samsung flagship models, such as the Galaxy S21, as well as some iPhone and AirPods models.
ECM employs a more sophisticated packaging method, enabling protection circuits to become smaller. As the protective circuits become smaller with each iteration, the phone’s actual battery pack can occupy more physical space.
Bigger battery on cards?
Is it possible that the Galaxy S26 series will have larger batteries than the Galaxy S25? Unverified rumours suggest that Samsung will increase the battery capacity of the Galaxy S26 Ultra to 5,500mAh, which would be a 10% increase over the Galaxy S25 Ultra. However, it is still too soon to make a firm commitment. Another, more trustworthy rumour claims that Samsung would replace the batteries’ housing with stainless steel, or “SUS CAN.” This should enable a larger capacity than the current Galaxy flagships, but it is unlike anything that several Chinese phone companies have managed to accomplish.
