Lester 18330-48 User Manual

www.lesterelectrical.com 1 33106A
24 VOLT DUAL MODE
AUTOMATIC BATTERY CHARGER
MODEL 18330-48 TYPE 24EL8
Specifications
AC Supply: 120 volts, 60 Hertz, single-phase, 3 amps maximum
DC Output: 24 volts, 8 amps tapering to 2 amps
Battery Capacity: Two series connected, 6 cell, 12 volt deep-cycle motive power batteries. Gel
cell and sealed "maintenance-free" or conventional replaceable electrolyte
deep-cycle batteries
Battery Size: 28 to 90 amp hours
Normal Recharge Time: 8 hours
PLEASE SAVE THESE IMPORTANT SAFETY AND OPERATING INSTRUCTIONS
For correct operation of the equipment, it is important to read and be familiar
with this entire manual before installing and operating the charger.
DO NOT DISCARD THIS MANUAL AFTER READING.
L
OOK FOR THIS SYMBOL TO POINT OUT SAFETY PRECAUTIONS. IT MEANS:
BECOME ALERT—YOUR SAFETY IS INVOLVED.
IF YOU DO NOT FOLLOW THESE
SAFETY INSTRUCTIONS, INJURY OR PROPERTY DAMAGE CAN OCCUR.
Features
• Charger output characteristics are adjustable to charge gel cell and sealed or conventional replaceable liquid electrolyte
deep-cycle lead-acid batteries. Different charge characteristics are selected by a switch on the front of the charger.
• Patented electronic circuit monitors battery state of charge and automatically turns charger off as battery reaches full charge
• Line voltage compensation produces consistent charger output for AC supply voltage variations of + 3% from nominal.
• Convection-cooled design for maximum reliability and minimum maintenance.
INTRODUCTION
The Dual-Mode wheelchair battery charger is
designed to recharge deep-cycle, lead-acid batteries
of conventional replaceable electrolyte or gel cell
and sealed "maintenance-free" design. The different
charge characteristics required by these different
types of battery design are selected by sliding the
"BATTERY TYPE" switch to the correct setting. A
patented electronic circuit turns the charger on and
off automatically.
Batteries used on wheelchairs are subjected to
severe deep-cycle duty on a daily basis. For this
reason, it is important that only Deep-Cycle batteries
be used.
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Lester 18330-48 Specifications

General

Brand	Lester
Model	18330-48
Category	Battery Charger
Language	English

Summary

Product Specifications and Introduction

Specifications

Details AC supply, DC output, battery capacity, size, and normal recharge time for the charger.

Features

Highlights adjustable output, patented electronic monitoring, line voltage compensation, and convection-cooled design.

Introduction

Describes the Dual-Mode charger for deep-cycle batteries and the importance of using correct battery types.

Installation and Safety Precautions

AC Input and Grounding

Instructions for connecting the charger to a grounded 120V AC outlet and safety warnings about grounding.

Grounding Instructions

Details proper grounding methods, including the use of adapters and the importance of a grounded outlet box.

Battery Type Selection

Explains how to distinguish battery types and set the charger's 'BATTERY TYPE' switch correctly.

General Safety Warnings

Critical safety advice regarding electric shock, sparks, flammable materials, and operating equipment.

Normal Operation and Battery Care

Normal Operation Steps

Step-by-step guide for setting the battery type, connecting the charger, and operating the power switch.

Battery System Requirements

Specifies the required 24-volt, 12-cell battery system and voltage settings for different battery types.

Proper Care of Deep-Cycle Batteries

Guidelines for maintaining deep-cycle batteries, including charging, discharge limits, and electrolyte levels.

Personal Precautions

Safety advice for working near batteries, including protective gear, acid contact, and avoiding sparks.

Troubleshooting and Technical Information

Troubleshooting Guide

Provides a guide to diagnose issues based on charger light indicators and common problems.

Wiring Diagram

Illustrates the internal electrical connections of the battery charger.

Parts List

Lists part numbers and descriptions for components of the dual mode battery charger.

Limited Warranty

Warranty Coverage and Limitations

Details the two-year warranty period, exclusions, and limitations for the battery charger.