Fig.1
INTRODUCTION
Congratulations on purchasing our new Multi-Stage (IU0U) Switching Mode Smart Battery Charger.
This software based MCU control 7 stage smart charger is designed with user friendly features and software plus
hardware protection. It is a set, connect and forget charger that ensures complete recharge of your battery.
Your battery can be connected indefinitely to the charger which will enter into energy conservation mode to prevent over
charging and save electricity bills. The battery state of charge and temperature are closely monitored, updated and
logged by the MCU and the remote temperature sensor mounted on the supplied charger cable and heavy duty battery
clamps.
Though the charger basically is engineered to charge high capacity battery/ banks, it can be made to charge much
smaller battery by selecting the right reduced output setting. This charger can also be converted to a fixed voltage power
supply with one simple concealed which setting.
The extensive protection with alarm and LED indications including the thermostatic decrease of charging current to shut
down ensure a durable working life span even in harsh conditions for the charger and the battery. There are selections for
WET, AGM, GEL and Calcium-Calcium battery types. Special evaluation, conditioning charging profiles are made for the
WET type battery so to recover deeply discharged WET lead acid battery..
There is a Power Supply (PS) mode to provide a constant voltage DC power 13.3V to the external load connected to the
battery and at the same time without over charging the battery.
Almost all the protections are controlled by the Micro-Processor. On start up, the chargers run a series of self tests on the
protective functions, displays and critical components like the cooling fan.
Intended Use:
All Automotive, Marine, Mobile Home, Electric Scooters, Golf Carts, Solar, Deep Cycle, UPS Standby, Industrial &
Commercial Applications.
A. Control and Indicators
1. Charger status LED display
Bulk LED (Orange)
: Desulphation charge – Slow flashing (charging with pulse charge)
Soft start – Fast flashing (charging with 1/2 the max current)
Bulk charging – Solid (charging with constant max. current)
Absorption LED (Yellow)
: Absorption charging with preset constant max. voltage.
Float LED (Green)
: Float charging – Solid (charging with preset constant voltage)
Standby – Slow flashing (charging with 96% of the preset constant float voltage)
