Fanso HCB ER34615 (D) 3.6V Battery Pack with Capacitor

Fanso HCB ER34615 (D) 3.6V Battery Pack with Capacitor

🔋 Fanso HCB ER34615 with capacitor is a ready-made industrial power pack designed primarily for Osten gas meters and other compatible equipment that requires long autonomous operation together with the ability to handle short high-current pulses.

The core of the pack is an HCB ER34615 D-size lithium-thionyl chloride battery with a nominal voltage of 3.6 V and a capacity of 19,000 mAh (19 Ah). The additional capacitor helps maintain power during short peak loads, such as radio-module operation or data transmission.

⚙️ Main specifications

• Battery brand: HCB
• Model: ER34615
• Size: D
• Chemistry: Li-SOCl₂ — lithium thionyl chloride
• Cell construction: Bobbin
• Nominal voltage: 3.6 V
• Nominal capacity: 19,000 mAh (19 Ah)
• Kit: ER34615 battery + capacitor + connection components
• Purpose: powering meters and equipment with periodic pulse loads
• Battery operating temperature: −55…+85 °C
• Cell type: primary, non-rechargeable

⚡ Why is a capacitor needed?

The ER34615 battery itself is optimized for long-term operation at relatively low average power consumption. This is ideal for meters that spend most of their time in a low-power state.

However, a modern meter equipped with a communications modem may occasionally require significantly higher current, for example when:

• 📡 the communication module is activated;
• meter readings are transmitted;
• a network connection is established;
• a data packet is sent;
• an actuator or communication module operates.

At these moments, the capacitor supplies stored energy and helps cover the short current peak. This reduces voltage drop at the battery and allows the high-capacity ER34615 cell to be used effectively in equipment with periodic pulse loads.

🔬 What is Li-SOCl₂?

Li-SOCl₂ stands for lithium-thionyl chloride technology. These cells provide high energy density, stable operating voltage, low self-discharge and long storage life.

HCB specifies a capacity of 19 Ah for the ER34615 and an annual self-discharge rate of approximately less than 1% under normal storage conditions. This makes the battery particularly suitable for meters designed to operate autonomously for several years.

📏 D size

The ER34615 is a large cylindrical D-size battery. According to the current HCB specification, the cell itself measures approximately Ø32.9 × 60.4 mm and weighs about 105 g.

⚠️ Do not confuse the ER34615 with a conventional household D battery. A standard alkaline D cell normally provides 1.5 V, while the ER34615 provides 3.6 V and uses a completely different chemistry.

🔥 For Osten gas meters

On Schetchik.uz this product is specifically offered as a battery pack for an Osten gas meter. The capacitor is particularly useful in electronic meters with data communication, where power consumption is very low most of the time but rises sharply for short periods during communication.

📡 Applications

• Osten gas meters;
• electronic gas meters;
• water meters;
• heat meters;
• automatic meter reading systems;
• GSM/GPRS modules;
• NB-IoT and LoRa devices;
• telemetry systems;
• remote sensors;
• other compatible industrial electronics.

✅ Advantages of the pack

• high 19,000 mAh capacity;
• stable 3.6 V nominal voltage;
• low self-discharge;
• designed for multi-year autonomous operation;
• capacitor helps during short high-current loads;
• suitable for equipment with wireless data transmission;
• wide battery operating temperature range;
• designed for professional metering equipment.

🔧 Check before purchase

Even when the battery model is the same, ready-made packs may differ in wiring and connector configuration. Before replacement, compare:

• battery model: ER34615;
• voltage: 3.6 V;
• number and type of wires;
• polarity;
• connector shape and type;
• capacitor position;
• compatibility with the exact Osten meter model.

📌 Important: the exact capacitance, voltage rating and model of the capacitor used in the Schetchik.uz pack are not specified in the publicly available product listing. When replacing the pack, check not only the ER34615 designation but also the connector and overall pack configuration.

⚠️ Safety

ER34615 is a primary battery and must not be recharged. Do not disassemble, puncture, crush, short-circuit or heat the battery.

When replacing a battery pack in a gas meter, follow the equipment manufacturer's requirements. If replacement requires opening a sealed part of the meter, the work should be performed by an authorized specialist.

🔋 Fanso HCB ER34615 (D) 3.6V with capacitor is a ready-made power solution for Osten meters and other compatible equipment where high capacity, long service life and support for short peak loads are required at the same time.