1. Background: Smart Agriculture & IoT Farming

Smart agriculture and IoT farming are transforming traditional agriculture into a data-driven industry. From soil
sensors and wireless weather stations to smart irrigation controllers and agricultural drones, more and more
devices are deployed directly in the field, often far from a stable power grid. A reliable battery system
therefore becomes the “heart” of each device, ensuring continuous monitoring and precise control in harsh outdoor
environments. :contentReference[oaicite:0]{index=0}

Compared with ordinary consumer electronics, smart agriculture devices face higher demands: long standby time,
wide temperature operation, resistance to humidity and dust, and stable performance over multiple planting
seasons. PKNERGY focuses on providing safe and durable lithium battery packs for these applications, especially
through
custom LiFePO₄ battery
and
custom lithium polymer battery
solutions.

2. Power Requirements of Smart Agriculture Devices

Smart agriculture covers various IoT devices deployed in fields, greenhouses, orchards, and livestock farms. Typical
devices include:

• Soil moisture / salinity / pH sensors
• Environmental monitoring nodes (temperature, humidity, CO₂, light intensity)
• Smart irrigation controllers and valve actuators
• Wireless gateways and communication base nodes
• Agricultural drones (for spraying, seeding, mapping and inspection)
• Livestock trackers, collars, and portable handheld terminals

These devices usually have the following power characteristics:

• Ultra-long standby time – many sensor nodes require years of operation on a single pack or cell.
• Low average power, but peak pulses – wireless transmission and valve actuation create short current spikes.
• Wide temperature range – devices need to operate under strong sunlight, heat, cold nights, rain and dust.
• Maintenance difficulty – devices are scattered in fields, making frequent battery replacement costly.

Therefore, the battery solution must balance energy density, cycle life, self-discharge, and cost, while
providing strong reliability in outdoor environments.

3. Suitable Battery Chemistries for IoT Farming

Depending on working mode (continuous, intermittent, or seasonal) and whether the device is rechargeable, smart
agriculture devices can use different types of lithium chemistries:

3.1 Rechargeable Li-ion & LiPo (3.6–3.7 V)

Rechargeable lithium-ion and lithium polymer (LiPo) cells are widely used in data collection nodes, handheld
terminals and small controllers. They offer:

• High energy density and compact size.
• Good cycle life for devices charged via solar panels or USB.
• Flexible pack design, including very thin and custom-shaped cells for compact enclosures.

PKNERGY provides

custom Li-ion polymer battery

packs with customized voltage, capacity, connectors and protection circuits for different IoT nodes.

3.2 LiFePO₄ (3.2 V)

Lithium Iron Phosphate (LiFePO₄) is particularly suitable for outdoor and agricultural environments because of:

• Excellent thermal and chemical stability, very safe chemistry.
• Long cycle life (often 2000+ cycles under proper conditions).
• Good high-temperature tolerance, working reliably in hot summers.

For irrigation controllers, gateways, and field-installed boxes that require long service life, a

custom LiFePO₄ battery

pack can significantly reduce maintenance times and improve system ROI.

3.3 High-energy Lithium Packs for Agricultural Drones

Agricultural drones for spraying or mapping usually need higher power and energy capacity. Here, high-rate Li-ion
or LiPo packs are commonly used, with:

• High discharge current capability.
• Good gravimetric energy density to extend flight time.
• Carefully designed BMS for balancing and safety.

For more general mobile devices and robots in the field, you can also refer to PKNERGY’s

mobile robot power solution

for design inspiration.

3.4 Emerging Chemistries

For some long-life, low-current sensor nodes, new chemistries such as sodium-ion are starting to attract
attention, offering good performance under wide temperatures and potentially lower cost. PKNERGY can provide

custom sodium-ion battery

solutions for pilot projects on request.

4. PKNERGY Custom Lithium Battery Solutions

Based on the original article’s ideas, PKNERGY offers one-stop battery solutions for smart agriculture and IoT
farming equipment—from cell selection and pack design to sample verification and mass production. :contentReference[oaicite:1]{index=1}

4.1 Custom Pack Design

• 1S, 2S, 3S and higher pack configurations according to system voltage.
• Custom sizes to fit narrow enclosures, pipe-mounted housings, or pole-mounted boxes.
• Optional IP-rated pack structure, improving resistance to dust and moisture.

4.2 Protection & BMS

Each pack can be equipped with an appropriate PCM/BMS, including:

• Over-charge, over-discharge, over-current and short-circuit protection.
• Temperature monitoring with NTC for outdoor operation.
• Optional communication (I²C, UART, CAN) for state-of-charge (SOC) monitoring in advanced systems.

4.3 Solar Charging & Energy Harvesting

Many smart agriculture nodes are paired with small solar panels or other energy-harvesting methods. PKNERGY
designs battery packs and charging strategies that match these sources, ensuring:

• Stable charging even under fluctuating solar conditions.
• Optimized charge current to protect battery life.
• Compatibility with different MPPT or charge-controller systems.

4.4 Engineering Support & Certification

PKNERGY supports customers with:

• Professional advice on system power budget and runtime calculation.
• UN38.3, MSDS and related test reports for transportation and safety.
• Cooperation with third-party labs to meet regional standards where necessary.

For larger farm-scale energy storage (such as photovoltaic + battery systems for irrigation or barns), please
also visit our

farm energy solutions

page on PKNERGY Power.

5. Typical Application Scenarios

PKNERGY’s lithium battery solutions are suitable for various smart agriculture and IoT farming applications:

• Soil and environmental monitoring nodes
  Long-life LiFePO₄ or Li-ion packs with low self-discharge, supporting multi-season deployment.
• Smart irrigation controllers
  Battery + solar designs that drive valve actuators reliably even on cloudy days.
• Wireless gateways and base stations
  Higher-capacity packs that provide backup power in case of grid outages.
• Livestock monitoring devices
  Lightweight and durable packs integrated into collars, tags or handheld tools.
• Agricultural drones and robots
  High-rate lithium packs designed for frequent charge/discharge and high power.

Whether you are an IoT startup or an established agricultural equipment manufacturer, PKNERGY can provide a
customized battery solution that matches your device’s electrical and mechanical requirements.

6. Battery Options & Pack Design Comparison

6.1 Chemistries for Smart Agriculture Devices

6.2 Typical Custom Pack Features by PKNERGY

7. FAQs about Batteries for Smart Agriculture