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MA21DCS
20AMP
CHARGER
WITH SOLAR INPUT
This MA21DCS charger is a sophisticated multi stage charger, utilising switch mode and
fully automatic computerised control, designed to charge most 12 Volt AGM/Lead Acid, Gel,
Calcium and LiON.
Heavy duty aluminium case and mounting
brackets
Encapsulated and sealed to IP65 for under
bonnet applications
Microchip monitoring and control
Fully automatic high frequency multi
stage charging
Pulse mode technology that reduces
oxidation, evens electrolyte consistency and
minimises temperature equating to longer
battery life
Easy push button chemistry selection: Lead
Acid/AGM (including VRLA and conventional
flooded batteries), Gel, Calcium and LiON
(LiFePO4)
DC-DC
Internal charger temperature monitoring
and power output control
LED indicators showing stage of charge
Over charging, short circuit and over
temperature protection
Reverse polarity protection:
1. Input reverse polarity protection
2. Output reverse polarity protection
Thermal overload protection
Solar input overload protection
Power cut memory function: once selected,
the charger will remain on this battery type
until it is changed
1
20AMP
USER
MANUAL
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Table of Contents
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Summary of Contents for matson MA21DCS
- Page 1 CHARGER MANUAL WITH SOLAR INPUT This MA21DCS charger is a sophisticated multi stage charger, utilising switch mode and fully automatic computerised control, designed to charge most 12 Volt AGM/Lead Acid, Gel, Calcium and LiON. Heavy duty aluminium case and mounting...
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Page 2: Safety Instructions
SAFETY INSTRUCTIONS WARNING To avoid any personal injury, please read the safety instructions below. This battery charger is not intended for use by children or infirm persons without supervision. FOR AUTOMOTIVE AND RECREATIONAL VEHICLE 12V DEEP CYCLE BATTERY USE ONLY. NOT TO BE USED WITH DRY CELL BATTERIES. -
Page 3: Installing The Charger
Any existing or additional cables used in the installation of this product needs to be suitable for the current and distance required. Matson recommends the use of 10mm cable for this purpose as a minimum. - Page 4 Measure the distance from the starting battery to the charger; the distance between the charger and the auxiliary battery; the distance between the solar panel output and the charger. Source cable and terminations to suit. Matson recommends a minimum 10mm2 good quality twin-core cable for this application.
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Page 5: Operating The Charger
12.4V 2. Solar Input If a solar panel input is connected to the MA21DCS, it will automatically accept power from the panels once the engine has stopped running and the main battery has dropped to 12.4V. -
Page 6: Specifications
SPECIFICATIONS Charge Type Multi-Stage Battery 10.8 - 16.0 Input Voltage (V) DC Solar 13.5 - 25.0 Cut in/out Voltage with Ignition lead (V)DC 11.5 - 10.8 Cut in/out Voltage NO Ignition lead (V)DC 13.0 - 12.4 Output Current (A) Minimum Start Voltage (V)DC Soft Start Charging Bulk Charge Voltages (V)DC 14.3... -
Page 7: Additional Information
CHARGING VOLTAGES Charge Type AGM / LEAD ACID CALCIUM LiON BOOST 14.3V 14.0V 15.0V 14.0V CHARGING 14.3V 14.7V 15.3V 14.4V MAINTENANCE 13.5V 13.5V 13.5V – NOTE: Battery manufacturers sometimes specify charging voltages. Not observing their charging instructions may void your battery warranty. ADDITIONAL INFORMATION Deep cycle batteries It is expected that this charger will be used to charge a deep cycle type auxiliary battery. -
Page 8: Fault Finding
FAULT FINDING Charger won’t indicate Charger not connected to battery charging Check terminal connection Battery is not 12 V Battery won’t charge Verify that all wiring meets specifications Check condition of batteries Check performance of alternator Battery won’t fully Battery that is over 3 years old; severely discharged (or previously charge or hold charge been severely discharged);...
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