Samsung may be preparing to push Galaxy batteries past the 5,000mAh mark after testing thinner epoxy molding compound (EMC) protection supplied by South Korea’s ITM Semiconductor, industry reports say — a change that could free internal space for larger cells in future models.

New battery protection tech lands Samsung appears to be testing fresh battery protection methods that could free up space inside future Galaxy phones and allow larger cells. South Korea's ITM Semiconductor Co. has entered an agreement to supply specialised protection circuits using epoxy molding compound (EMC) for upcoming Galaxy models, industry reporting says. Those protection circuits are designed to regulate the flow of charge and to shield cells from overcharging and too-rapid discharging. The protection layer also blocks moisture, reduces electromagnetic interference from nearby components and helps dissipate heat generated during charging or heavy use. Key functions of the EMC protection package: - Regulate charge flow to prevent overvoltage and deep discharge - Provide moisture barriers and reduce electromagnetic interference - Improve heat dissipation during charging and heavy workloads Heat and fast discharge are known contributors to faster battery wear. By tackling those issues with a thinner, more effective protection package, Samsung could both prolong battery life and reclaim internal volume that’s currently taken up by bulkier circuitry. Smaller circuits, more room for cells EMC protection circuits are said to be getting smaller with each iteration. The logic is simple: shrink the non-cell hardware, and manufacturers can either use that space for larger battery cells or reallocate it to other components. ITM’s work reportedly isn’t limited to premium models. The company is said to be supplying less advanced variants of its protection tech to the Galaxy A series and the Galaxy Z Fold and Z Flip lines as well, which could mean a broader rollout across Samsung’s 2026 handset range rather than an Ultra-only tweak. Smaller protection circuits also change thermal behaviour inside a phone. By cutting down on electromagnetic interference and providing better moisture barriers, EMC may reduce hotspots that appear while charging or during intense tasks like gaming. Those lower temperatures translate into slower battery ageing over time. What that could mean for battery capacity Speculation about larger batteries has trailed Samsung’s next flagship, the Galaxy S26. Industry chatter suggests the S26 Ultra might not leap dramatically above current sizes; some insiders put a tentative upper bound at about 5,400mAh, which amounts to less than a 10% increase over this year’s Galaxy S25 Ultra. Other rumours point to modest battery gains across the S26 line rather than a single headline-grabbing jump. Even small increases matter to users who expect all-day runtime without sacrificing slim designs. The EMC-driven space savings would make incremental growth easier to accomplish without adding bulk. Charging and longevity: two sides of the same coin EMC protection circuits not only aim to protect cells from overvoltage or deep discharge; they also help manage the thermal load during fast charging, when batteries typically heat up the most. Lower temperatures while topping up a phone slow chemical degradation inside the cell, meaning faster charging remains useful over many cycles without drastically shortening battery lifespan.

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Industry reporting links Samsung with ITM Semiconductor and suggests EMC protection could allow the S26 Ultra to approach roughly 5,400mAh, with smaller gains likely across Samsung’s 2026 Galaxy range.

This article was created with AI assistance.