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Battery Regulation Countdown: The Real Risk for POS Terminals Isn't Replacing the Battery — It's Being Cut Off.

Oct 13, 2026SLA
Consumer ElectronicsSLAHybrid Supercapacitor (Lithium-ion Capacitor)
Regulatory Countdown: The "Compliance Window" for POS Terminals
 

The EU's New Battery Regulation (EU 2023/1542) entered into force on August 17, 2023. Article 11 stipulates that, starting February 18, 2027, batteries in portable devices must, in principle, be "easily removable and replaceable" by the end-user. POS terminals, which contain built-in lithium batteries, fall under the category of portable batteries and are not currently among the explicitly exempted product categories published by the EU.
However, POS terminals face a stricter constraint: the PCI PTS POI standard requires tamper-detection circuits to remain continuously active. If an abnormal power supply is misinterpreted as a security breach, the security chip immediately erases the encryption keys, instantly rendering the device inoperable ("bricking" it). Based on this requirement, the industry has argued to the European Commission that POS terminals—which require continuous power to ensure transaction data integrity and tamper-proof security—should qualify for a full exemption under Article 11, Paragraph 3.
Regardless of whether an exemption is ultimately granted, one unavoidable issue remains: while the main battery may be replaced, age, or disconnect, the POS terminal's security module cannot lose power.
 
Why LIC? POS Terminals Need a "Power-Loss Buffer"
 

Regardless of whether POS terminals ultimately secure an exemption from the battery regulation, a rigid constraint persists: the main battery may lose power, but the security module cannot.
The main battery can disconnect due to aging, malfunction, professional maintenance, or accidental detachment; backup batteries are similarly prone to aging, poor contact, and voltage drops during switching. Meanwhile, the PCI PTS POI standard mandates that tamper-detection circuits remain continuously active; if a power anomaly is misinterpreted as an intrusion, the security chip immediately erases the keys, instantly bricking the device.
Traditional solutions use high-capacity lithium batteries as buffers, but these have short cycle lives (typically 500–1,000 cycles), requiring replacement after just two or three years of daily charging and discharging. Their performance plummets in low temperatures—causing POS terminals used outdoors in northern winters to fail—and long-term trickle charging accelerates aging. Consequently, they cannot meet the maintenance-free requirements spanning the POS terminal's entire lifecycle. The answer is the LIC (Lithium-Ion Capacitor)—a power backup solution specifically designed to ensure that safety modules never lose power.
As a hybrid supercapacitor, the LIC combines high energy density, high power density, and a long cycle life. Its 3.8V single-cell voltage allows for a streamlined design, while a lifespan of 500,000 cycles matches that of the device itself, eliminating the need for replacement. It operates reliably across a wide temperature range (-40°C to +85°C), maintaining performance even in cold environments, and offers millisecond-level response times to take over the power supply the instant the main battery fails.
 
For POS terminal development, the LIC is not merely an "optional upgrade"; it is a crucial missing piece in the power architecture required to ensure compliance with PCI PTS security standards and maintain transaction continuity. It does not replace the main battery; instead, it covers the gap during those few seconds when the main battery is absent.
 
Application Scenario: What exactly does the LIC do inside a POS terminal?
 
Scenario 1: Battery Replacement/Main Power Disconnection – Maintaining the Security Link
During the few seconds when the main battery is removed for replacement or the main power is cut off, the LIC takes over power delivery within milliseconds. This keeps the POS main controller, security module, and tamper-detection circuitry continuously active. Because tamper detection remains uninterrupted, the security chip does not misinterpret the voltage drop as a physical intrusion event. The main controller completes data saving, and the communication module transmits the final transaction confirmation packet. Once the battery is replaced, the device remains fully operational.
It is important to note that the LIC ensures "normal battery replacement does not trigger accidental data erasure." In the event of an actual physical intrusion, the security chip will still trigger key erasure in compliance with PCI PTS requirements; the LIC does not alter this security logic—it simply bridges the power gap during the main power transition.
Scenario 2: Transaction Protection During Sudden Power Loss
If power is suddenly lost or the battery becomes loose during a transaction, the LIC provides a buffer window ranging from tens of milliseconds to several seconds. This ensures current transaction data is written to non-volatile memory, preventing disputes where funds are deducted but the transaction is not recorded.
Scenario 3: Peak Power "Pressure Relief Valve"
Current demand spikes momentarily during operations such as receipt printing, barcode scanner activation, and wireless data transmission. The LIC handles these pulse loads, reducing the depth of charge and discharge cycles for the main lithium battery; this extends the main battery's lifespan and enhances the device's overall durability.
SLA Series LIC: The "Power-Loss Buffer" for POS Terminals
Yongming SLA Series Hybrid Supercapacitors (Lithium-Ion Capacitors/LICs) feature a 3.8V rated voltage, capacitance ranging from 20F to 350F, an operating temperature range of -40°C to +85°C, and a cycle life exceeding 500,000 cycles.
Series / Voltage Capacitance Dimensions (mm)
SLA / 3.8V 20 F 6.3 × 22
40 F 6.5 × 25
80 F 10 × 20
100 F 10 × 25
120 F 10 × 25
120 F 12.5 × 20
200 F 12.5 × 25
350 F 12.5 × 30
 
It applies to more than just POS terminals—any device requiring uninterrupted power can benefit.

POS terminals represent just one application of LIC technology in portable devices. The underlying logic applies to any scenario characterized by removable main batteries, the need to preserve critical data, and requirements for pulse power:
Industrial handheld terminals/PDAs: Warehouse scanning and logistics delivery confirmation—data must not be lost during battery swaps.
Portable medical devices: Portable monitoring and handheld diagnostics—parameters must be preserved during power loss.
Smart locks/access control systems: Emergency unlocking in low-temperature environments and ensuring motor operation during power outages.
Aftermarket automotive devices: Protecting dashcam data during voltage drops at engine ignition.
The regulatory countdown has begun; the window for adjusting POS power architectures is open right now.
If you are evaluating compliance solutions for battery regulations or need to design an "uninterrupted power" architecture for scenarios involving battery swaps, Yongming offers one-stop support—from component selection to sample testing.
This article is from the YMIN website. Always refer to the latest datasheet for product selection.