I have a Redragon K618 (red switches), purchased January 2024. With daily use (~5 hours/day), the battery has degraded to the point where it only lasts about 1–2 hours and effectively must remain plugged in to function. Normally this wouldn’t be a major issue, batteries wear out, but in this case, finding a proper replacement is unnecessarily difficult. There is no official replacement battery available, and even community discussion confirms that Redragon does not provide one and instead pushes users toward buying a new keyboard. The core issue is not just availability, but spec ambiguity. The battery inside the K618 is a large, thin LiPo pouch (~118 × 51 × ~6mm) with a 3-wire (thermistor) connector. While it is easy to find batteries that match the physical dimensions, nearly all of them are 2-wire (2-pin), which makes them electrically incompatible without modification. Conversely, batteries that match the 3-wire configuration are typically much smaller or thicker and do not fit the internal cavity safely. This creates a situation where: Correct size does not equal correct wiring Correct wiring does not equal correct size This is not just an inconvenience, it has safety implications. Using a battery that is too small can allow movement inside the case, increasing puncture risk. Using one that is too thick can create pressure on the pouch, also increasing failure risk. These are not acceptable compromises for a lithium polymer battery. This design also raises broader concerns around right-to-repair and consumer ownership. The battery is technically replaceable, but the lack of standardized parts, clear specifications, or official replacements creates a barrier that most users cannot reasonably overcome. In practice, this makes a consumable component effectively non-serviceable. From a consumer standpoint, this shifts the burden from repair to replacement. A fully functional keyboard is rendered unusable due to a single worn component, with the most accessible solution being to purchase a new unit. That is difficult to justify when the failure mode is both predictable and preventable with better part standardization or support. At a time when right-to-repair is gaining traction, products like this highlight the gap between “technically repairable” and “practically repairable.” Without access to compatible replacement parts or clear documentation, users are left with limited options: modify hardware themselves, accept reduced functionality, or discard the product entirely. For a device less than two years old, this approach effectively treats it as disposable, which is both environmentally wasteful and avoidable with better design and support.
