AD-155 UPS Charger | 155W Battery Backup & Power Supply

Product Overview

The AD-155 UPS Charger stands out as a versatile solution, featuring a universal AC input range of 88~264VAC (47~63Hz) and optional DC input support (124~370VDC), making it suitable for global use across different power grids. It is available in three variants—AD-155A, AD-155B, and AD-155C—each optimized for specific battery voltage requirements:

AD-155A: Dual outputs (CH1: 13.8V/10.5A; CH2: 13.3V/0.5A) for 12V battery systems, ideal for small-scale backup setups.

AD-155B: Dual outputs (CH1: 27.6V/5A; CH2: 27.1V/0.5A) tailored for 24V industrial or solar battery banks.

AD-155C: Dual outputs (CH1: 54V/2.7A; CH2: 53.5V/0.2A) designed for high-voltage 48V applications like telecommunication devices.

With a compact dimension of 19911050mm (LWH) and a lightweight design (0.88Kg), the AD-155 fits easily into tight spaces, while its 100% full-load burn-in test ensures long-term reliability. Whether used as a standalone battery charger or a backup power source, it balances efficiency, durability, and safety—core strengths of LEYU’s power supply products.

Features

The AD-155 UPS Charger integrates industry-leading features to meet strict performance and safety standards, making it a preferred choice for both professional and home users.

Protection Mechanisms

Safety is prioritized with a comprehensive suite of protections to safeguard the charger, connected batteries, and downstream equipment:

Short Circuit/Overload/Over Voltage Protection: Prevents damage from electrical faults. Overload protection triggers at 105~135% of rated output for CH1 and 0.51~0.9A for CH2; over-voltage protection shuts down output (e.g., 15.87~18.63V for AD-155A CH1) and requires a power cycle to reset.

Battery-Specific Protections: Includes battery low protection (10V±0.8V for AD-155A, 19.5V±1.5V for AD-155B, 39V±2V for AD-155C) to avoid deep discharge, and battery polarity protection to prevent reverse-connection damage.

Dual-Mode Protection Logic: In AC Charging Mode, it uses a hiccup mode that automatically recovers after faults are resolved; in UPS Mode, an internal fuse provides additional safety.

Efficiency & Stability

The AD-155 delivers consistent performance with minimal energy waste and voltage fluctuations:

High Efficiency: Achieves 80% efficiency (AD-155A) and 84% efficiency (AD-155B/C), reducing energy consumption and heat generation.

Stable Voltage Regulation: Features ±0.5% line regulation and ±0.5% load regulation, ensuring output voltage remains steady even when input power or load changes. Ripple and noise are kept low at 150mVp-p (AD-155A/B) and 240mVp-p (AD-155C), protecting sensitive electronics.

Fixed Switching Frequencies: Operates at 67KHz (PFC) and 134KHz (PWM), minimizing electromagnetic interference (EMI) and ensuring compliance with EMC standards.

Design & Durability

Built for long-term use in diverse environments, the AD-155 combines practical design with rugged construction:

Passive Cooling: Relies on free air convection for cooling, eliminating fan noise and reducing maintenance needs (no moving parts to fail).

Wide Operating Temperature: Functions reliably in -10~+60℃ (with derating curve reference) and stores safely in -20~+85℃, making it suitable for harsh industrial settings or outdoor-mounted systems.

Warranty Coverage: Backed by a 2-year warranty, reflecting LEYU’s confidence in the product’s quality and durability.

Applications

The AD-155 UPS Charger’s versatility makes it applicable across multiple sectors, where uninterrupted power and efficient battery charging are essential.

Industrial Automation

In factories and manufacturing facilities, the AD-155 powers and charges batteries for programmable logic controllers (PLCs), sensors, and small motor drives. Its 24ms hold-up time (230VAC) ensures no data loss or equipment shutdown during brief power dips, while its wide input range adapts to unstable industrial power grids.

Home Backup Systems

For residential use, the AD-155 serves as a backup power source for critical devices like refrigerators, medical equipment (e.g., oxygen concentrators), and home security panels. The AD-155A variant (13.8V output) is particularly well-suited for 12V lead-acid or lithium-ion battery banks commonly used in home backup setups.

Security & CCTV Systems

CCTV cameras and DVRs require continuous power to avoid recording gaps. The AD-155’s low ripple noise (≤240mVp-p) prevents signal interference, and its battery backup ensures cameras remain operational during outages. Its compact size allows integration into existing CCTV control boxes.

Solar Energy Storage

As part of small-scale solar systems, the AD-155 (especially AD-155B/C) charges solar batteries (lead-acid or lithium-ion) using power from solar panels or grid input. It works seamlessly with PWM/MPPT solar controllers, ensuring efficient energy storage for off-grid or hybrid solar setups.

Telecommunication Equipment

For small telecom devices (e.g., outdoor 5G micro base stations, routers), the AD-155C (54V output) provides stable power and battery charging. Its compliance with EMC standards (EN55022 Class B, EN61000-4) ensures it does not disrupt telecom signals.

FAQ

What is the difference between the AD-155A, AD-155B, and AD-155C variants?

The three variants differ primarily in their output voltage and current, optimized for different battery systems:

AD-155A: CH1 (13.8V/10.5A) + CH2 (13.3V/0.5A) – for 12V batteries (e.g., home backup, small CCTV).

AD-155B: CH1 (27.6V/5A) + CH2 (27.1V/0.5A) – for 24V batteries (e.g., industrial sensors, solar storage).

AD-155C: CH1 (54V/2.7A) + CH2 (53.5V/0.2A) – for 48V batteries (e.g., telecom devices, high-power solar systems).

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