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  3. Earth Power 本社
  4. "Adjustable charging voltage and charging current! Could three-stage charging lead to cost reduction?!" We introduce the "Battery Charger NPB Series," which can achieve a full charge without burdening the battery, making it suitable for use as an onboard battery charger for special vehicles and camper vans.
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  • Jun 19, 2024
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Jun 19, 2024

"Adjustable charging voltage and charging current! Could three-stage charging lead to cost reduction?!" We introduce the "Battery Charger NPB Series," which can achieve a full charge without burdening the battery, making it suitable for use as an onboard battery charger for special vehicles and camper vans.

Earth Power Earth Power 本社
This product can be set to a wide range of input voltages from AC90 to 264V and frequencies from 47 to 63Hz, allowing for safe use not only domestically but also overseas, making it possible to incorporate it into products or systems being considered for export. With its three-stage charging system that includes bulk charging, absorption, and float charging, this product can fully charge batteries while preventing degradation, thereby extending battery life and ultimately reducing costs by decreasing the frequency of battery replacements. It also allows for adjustments of charging voltage and current in stages through programming, as well as the selection of charging methods, enabling customization to create a battery charger that is more suitable for specific requirements. Additionally, it is equipped with a thermal control DC fan that reduces noise by 98%, allowing for quiet cooling operation even when integrated into a system, so users can operate it without concerns about noise or sound. Our company also offers batteries that are optimal for this battery charger, as well as inverters necessary for system integration, allowing us to provide the best proposals tailored to your system requirements. For specifications and features, please download the product page or catalog for confirmation, or feel free to contact us.
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Product Information "NPB Series"

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10_NPB-120-240-360.jpg

Battery Charger "NPB-120, 240, 360 Series"

【New Battery Charger】 This is a compact battery charger equipped with step charging. It can be used for various applications such as robots and automobiles!

The NPB-120, 240, 360 series is a Class I Power unit that is a battery charger compatible with lead-acid batteries (sealed, non-sealed, Gel, AGM) and lithium-ion batteries (lithium iron, lithium manganese), featuring two-stage and three-stage charging control. Despite its compact size, it is equipped with many functions, including a wide range of input voltage and adjustable charging voltage and current. As a result, it is adopted for various applications such as robots, automobiles, medical devices, industrial equipment, and power supplies for system integration. 【Features】 - Wide input voltage range: AC90V to AC264V - Wide operating temperature range: -30℃ to +70℃ - Equipped with various protection circuits - Option: NPB mounting cover available (model: EP-NPB123) *Currently preparing to obtain PSE standards. For detailed product information, please visit our company website.

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NPB-450.jpg

Battery charger "NPB-450, 750, 1200, 1700"

New type of battery charger! A compact yet high-capacity battery charger that allows you to adjust voltage and current through program settings.

The NPB-450, 750, 1200, and 1700 are high-capacity battery chargers that can be finely tuned through program settings. The 450 and 750 Series are designed using an integrated MCU and patented automatic distance measurement battery technology, while the 1200 and 1700 Series feature patented automatic distance detection technology for lithium-ion batteries, utilizing a battery management system (BMS). 【Features】 - Wide input voltage range: AC90V to AC264V - Thermal control DC fan for noise reduction - Selectable charging methods (2-stage charging, 3-stage charging) - Built-in CANbus protocol (for control, settings, and monitoring) - Adjustable charging voltage and current via VR - Operating status signals, battery monitoring signals, remote control, and temperature sensor circuit included - Wide operating temperature range: -30℃ to +70℃ - Various protection circuits included - Certifications: UL / DEKRA / CB / EAC / AS/NZS / CE / UKCA *Currently preparing for PSE certification. The 1200 and 1700 are products not subject to PSE. For detailed product information, please visit our company website.

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Battery Charger "NPB Series"

Battery Charger "NPB Series"

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Basic Knowledge of Battery Chargers 1: What is "Stage Charging"?

Basic Knowledge of Battery Chargers 1: What is "Stage Charging"?

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Earth Power Co., Ltd. Company Overview

Earth Power Co., Ltd. Company Overview

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Truck berth vehicle detection

It's not too late to address the "2024 Problem." Why not immediately reduce drivers' waiting times?

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Are you making progress on measures for the "2024 Problem"? The management of drivers' working hours is becoming stricter, and in the logistics field, reducing "waiting time for loading" has become an urgent issue. To address this challenge, our company, Hotron, proposes the "Vehicle Detection Ultrasonic Sensor 'HM-UX2'," which instantly grasps the availability of loading bays. The 'HM-UX2' contributes to the resolution of waiting times by accurately understanding the availability status, reducing unnecessary waiting and queuing, and shortening waiting times, thereby alleviating the burden on drivers! By replacing the "eyes" of your loading bay management with this high-precision sensor, why not start taking measures against the "2024 Problem"? Take a look at the product features: "Can it accurately detect availability?" "Can we really use it in our company?" "I just want to know the cost, even if it's an estimate." If you have any questions or requests, please feel free to consult us first.

Aug 08, 2025

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Regarding the response during the summer vacation period.

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We sincerely apologize for the inconvenience, but we will be closed for summer vacation during the following period. Closure period: August 9 (Saturday) to August 17 (Sunday), 2025 Inquiries received during this period will be addressed sequentially starting from August 18 (Monday). We appreciate your understanding and cooperation.

Aug 08, 2025

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High-Performance Materials Week [Osaka] 13th High-Performance Plastics Exhibition Thank You for Attending

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Thank you very much for visiting our booth at the "High-Performance Materials Week [Osaka] 13th High-Performance Plastics Exhibition." Thanks to you, we had many visitors and were able to conclude the event successfully. In addition to the "PPLB-445" displayed on the day, we have a variety of products available. For those who were unable to measure samples at the venue, we offer a trial measurement service. Furthermore, for those who would like to know more about our products and services, we also accept online meetings. We welcome inquiries from those who attended as well as those who could not make it this time due to scheduling conflicts. Please feel free to contact us.

Aug 08, 2025

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【New Product Information】Wireless display "NW2991-JP" with long battery life and low power consumption released.

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Aioi System is pleased to announce the release of the low-power wireless display "NW2991-JP," which achieves long battery life. This product supports 920MHz band wireless communication and can be operated in conjunction with wired displays. It can be easily integrated into existing systems by simply adding a master unit. With a high-speed response time of under one second and a variety of display functions for text and barcodes, it supports a wide range of applications. ▼ For more details, please see the press release linked below ▼ ■ Main Features - Maintenance-free design with a battery life of one year (low power consumption) - Compatible with mixed operation with wired displays - High-speed response (under one second) and diverse display formats - Stable communication in the 920MHz band ■ You can see the actual product at the exhibition This product will be displayed at the TOPPAN booth during the International Logistics Comprehensive Exhibition 2025, 4th INNOVATION EXPO. We invite you to visit the venue, see the actual product, and experience its performance. Dates: September 10 (Wed) - 12 (Fri), 2025 Venue: Tokyo Big Sight (Halls 4-8) Booth No: 5-907 (TOPPAN booth) Exhibition official website ▶ linked below We sincerely look forward to your visit.

Aug 08, 2025

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Measurement of cosmetics

Thank you for visiting the Monozukuri World (Measurement, Inspection, and Sensor Exhibition).

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Thank you very much for visiting our booth at the "Monozukuri World (Measurement, Inspection, and Sensor Exhibition) 2025." Thanks to you, we had many visitors, and the event concluded successfully. In addition to the "PPLB-445" showcased on the day, we have a variety of products available. For those who were unable to conduct sample measurements at the venue, we offer a trial measurement service. Furthermore, for those who would like to learn more about our products and services, we also accept online meetings. We welcome inquiries from those who attended, as well as those who were unable to come this time due to scheduling conflicts. Please feel free to reach out to us.

Aug 08, 2025

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  • イプロスがリアル展示会を主催します! AI/DX 営業・マーケティング展 出展社募集中 リード数・商談数が止まらない!新しいリアル展示会を提供 会期 2026年3月24日(火)~25日(水) 会場 東京ビッグサイト東4ホール 出展概要資料を進呈!
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