Power Products ALPHA C-25 - User Manual

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ALPHA C-20/25

BATTERY CHARGER

OPERATING MANUAL

Power Products Inc. • 27 Pamaron Way, Suite E • Novato • CA 94949

Tel: (415) 883-6300 • Fax: (415) 883-6302

www.power-products.com

www.power

products.com

Questions and Answers

D
Deanna DixonAug 6, 2025
What to do if Power Products Battery Charger has no or very low charge current?
- C
  Christopher WardAug 6, 2025
  If your Power Products Battery Charger shows no or very low charge current, there might be several reasons: * The lead-acid battery could be sulfated and unable to support a load; in this case, recondition or discard the battery. * There might be high resistance or an open circuit in the DC cable or at the quick disconnect. Inspect and measure the resistance in the DC cable and connector. If the resistance is high or intermittently high, the cable needs replacement. * If you're using a nickel-cadmium battery, the inter-cell connectors may be loose or contaminated, causing high resistance. Check all terminals and inter-cell connectors, and look for arcing or heat generation with a low discharge current.
M
Matthew WilsonAug 21, 2025
How to fix Power Products Battery Charger that will not turn on?
- M
  Michael ScottAug 21, 2025
  If your Power Products Battery Charger unit doesn't turn on, here are a couple of things to check: * First, ensure that the AC power is properly connected to the unit. Use a voltmeter to check the AC line. * Second, inspect the AC line fuse. A blown fuse may be due to an incorrect AC line voltage setting. Make sure the AC line voltage setting on the back of the unit is correct. Replace the AC line fuse located on the rear of the unit.

Summary

System Overview

System Overview Details

Describes the Alpha C-25 Charger's capabilities, dimensions, and compatibility with various battery types.

Displays and Controls

Details the simple and easy-to-understand controls and displays on the Alpha C-25 charger.

Installation Guide

Line Voltage Selection

Explains how to select the correct AC input voltage (115 or 230 VAC) for the charger.

DC Terminals and Connectors

Describes the DC output cables and connectors, including quick-disconnect and ring terminals.

Space and Ventilation Requirements

Details the physical space and ventilation needed for proper operation of the charger.

Operating Guide

Charge Characteristics Overview

Explains lead-acid cell voltage, ampere-hours, specific gravity, and gassing during charging.

Battery Charging Methods

Details constant current, constant potential methods and their use with lead-acid and nickel-cadmium batteries.

Preparation for Charging

Guides on reading manuals, ensuring time, current, and voltage settings are followed.

Verify End Voltage

Steps to verify the end voltage of a battery charge cycle using the charger's voltmeter.

Charge Time Settings

Details how to set the built-in timer for charge durations from 1 to 999 minutes.

Calibration and Maintenance

Calibration Overview

Explains the importance of periodic calibration and the manufacturer's calibration procedures.

Meter and Timer Accuracy

Details the accuracy of the digital voltmeter, ammeter, and the non-recalibratable timer.

Operating Ranges and Verification

Explains adjustable operating ranges and the procedures for voltage and current verification.

Shunt Verification

Describes the procedure and circuit diagram for verifying the internal current shunt accuracy.

Adjusting Operating Ranges

Details how to modify constant-potential voltages and constant-current voltage limits using trimpots.

Routine Maintenance

Covers checks for vents, fans, DC cables, fuse replacement, and cleaning agents.

Troubleshooting Guide

Technical Specifications

Battery Overview Appendix

Battery Classes

Divides batteries into primary and secondary types, focusing on rechargeable secondary batteries.

Secondary Battery Types

Details secondary batteries, including Lead-Acid (SLAB) and Nickel-Cadmium, their characteristics and applications.

Glossary of Battery Terms

Defines key terms related to batteries such as Ampere-Hours, Cutoff Voltage, and Capacity Rate (C-Rate).

Warranty Information

Certification of Calibration

Power Products ALPHA C-25 Specifications

General

Input Voltage	120V AC
Output Voltage	12V DC
Output Current	25A
Number of Banks	1
Charging Mode	Automatic
Battery Type	Lead Acid

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