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G.T.Power A8 User Manual

G.T.Power A8
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G.T POWER A8
BALANCE CHARGER/DISCHARGER
FOR NICD/NIMH/LITHIUM/PB BATTERIES
Operating Manual
Thank you for purchasing the G.T POWER A8 balance charger. This
is a rapid charge/discharger with built in balancer, computerised with
microprocessor and specialised operating software. Please read this
entire operating manual completely and attentively before using.
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Do you have a question about the G.T.Power A8 and is the answer not in the manual?

G.T.Power A8 Specifications

General IconGeneral
Charge Power150W
Discharge Power20W
Input VoltageDC 11.0~18.0V
Charge Current0.1-10A
Discharge Current0.1-5A
LiPo/LiFe/LiIon Cell Count1~6S
Pb Battery Voltage2~20V
Battery TypesLiPo, LiFe, LiIon, NiMH, NiCd, Pb
DisplayLCD
Charging ModesStorage, Discharge
NiMH/NiCd Cell Count1-15 cells
Cell CountLi-Po/Li-Fe/Li-Ion: 1-6 cells, NiMH/NiCd: 1-15 cells
Cooling SystemBuilt-in cooling fan

Summary

Features

Operating Software and Performance

Covers optimized software functions, high-power circuit capabilities, and performance aspects.

Lithium Battery Specific Features

Details individual cell balancing, acceptance of various Lithium types, and Fast/Storage modes.

Maximum Safety Mechanisms

Details safety features like delta-peak, auto-charge limit, capacity, and temperature limits.

Data Management and Connectivity

Details data storage for up to 10 batteries and PC analysis via USB.

Accessories and Wires

Lists available multi-use wires and connectors for convenient charging.

Unit Exterior and Controls

Component Identification

Identifies key external parts of the charger unit, including ports and screen.

Lithium Balance Charge Diagram

Illustrates the correct connection diagram for lithium battery balance charging.

Warnings and Safety Notes

General Safety Precautions

Provides essential safety guidelines for operating the charger and handling batteries.

Battery Compatibility and Limits

Lists voltage levels, charge/discharge limits for various battery types (NiCd, LiPo, Pb).

Program Flow Chart

Lithium Battery Program Flow

Diagram outlining the sequence for Lithium battery charging and discharging programs.

NiMH/NiCd Battery Program Flow

Diagram detailing the program flow for NiMH and NiCd battery operations.

Lead-Acid Battery Program Flow

Flowchart for the Lead-Acid battery charging and discharging programs.

Data Management Program Flow

Outlines the program flow for saving and loading battery data.

User Setup Program Overview

Diagram showing the user-defined parameter setup sequence.

Initial Parameter Setup

Navigation and Basic Lithium Setup

Covers user setup navigation, Lithium battery type selection, and cell count verification time.

Charging Control Parameters

Details NiMH/NiCd sensitivity, temperature cut-off, cyclic delay, trickle charge, and safety timer.

Protection and Display Settings

Covers capacity cut-off, input power protection, and LCD backlight adjustment.

Lithium Battery Programs

Lithium Battery Charging

Details on charging Lithium batteries using CV/CC method and setting current/voltage.

Lithium Balance Charging

Procedure for balancing individual cell voltages during Lithium battery charging.

'FAST' Lithium Charging

Utilizing the 'FAST' charge mode to reduce charging time for Lithium batteries.

'STORAGE' Lithium Mode

Using 'STORAGE' mode to set Lithium batteries to an optimal voltage for long-term storage.

Lithium Battery Discharging

Procedure for discharging Lithium batteries, including current and voltage settings.

Cell Voltage Monitoring

Monitoring individual cell voltages during discharge and identifying abnormal cells.

NiMH/NiCd Battery Programs

NiCd/NiMH Charging

Instructions for charging NiMH and NiCd batteries, including 'Auto' and 'Manual' modes.

NiCd/NiMH Discharging

Procedure for discharging NiCd and NiMH batteries with current and voltage settings.

NiMH/NiCd Cyclic Operations

Using charge-discharge cycles for NiMH/NiCd battery refresh and break-in.

Lead-Acid Battery Programs

Lead-Acid Battery Charging

Guidelines for charging Lead-Acid batteries, emphasizing low current and correct voltage.

Lead-Acid Battery Discharging

Procedure for discharging Lead-Acid batteries, specifying discharge current and voltage.

Save Data Program

Saving Battery Specifications

Storing battery specifications for up to 10 different batteries for quick recall.

Load Data Program

Loading Saved Battery Data

Recalling previously saved battery data to set up charging or discharging programs.

Process Information Display

End Voltage and Capacity Status

Displays final voltage and charged capacity upon completion of a process.

Timer and Temperature Monitoring

Shows safety timer duration and current temperature readings (internal/external).

Input Power and Cell Voltages

Displays input DC power voltage and individual cell voltages for Lithium batteries.

Warning and Error Messages

Polarity and Connection Errors

Messages for reverse polarity and connection break errors during operation.

Voltage and Short Circuit Errors

Alerts for input voltage issues, volume selection errors, and short circuits.

Battery and Cell Condition Errors

Indicates low/high battery voltage, cell voltage issues, and cell connection faults.

Temperature and Control Errors

Messages related to excessive temperature or control system failures.

Technical Specifications

Warranty and Service

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