Rev: 1.3
MA20DC
20 AMP, DC to DC Battery Charger
MA20DCS
20 AMP, DC to DC Battery Charger – With Solar Input
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Rev: 1.3
FEATURES
Built tough for the Australian environment
IP65 rated - protected against dust ingress and splash proof
Electronically safe against user errors. The charger will not damage vehicle electronics
Fully protected against short circuits and wrong connections to ensure safe charging operation
Battery is totally safe if charger is connected indefinitely - no risk of overcharging or draining donor battery
Charger can be programmed for different battery types such as GEL, Lead Acid and Calcium Batteries
Microchip monitoring and control
Electronic touch-button controls
Overheat protection
Over current protection - charger automatically reduces current for optimum battery condition
WARNING
Explosive gases may escape from the battery during charging - ensure area is well ventilated and prevent
flames and sparks
Read the instructions before using the equipment
Protect the charger from water
Use on 12volt batteries only
DO NOT use this equipment with non-rechargeable batteries.
Position the charger clear of the battery
Equipment is not for use by children
Check battery manufacturers specifications for rates and voltage prior to charging
DO NOT use the equipment if the cable is damaged
DO NOT charge a frozen battery.
Before charging, ensure the input is within stipulated rating level - charging performance may be seriously
affected.
When charging, DO NOT leave the charger unattended for a long periods of time
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Rev: 1.3
MA20DCS
INSTALLATION INSTRUCTIONS
Locate the charger in a suitable position in the vehicle - although the charger is splash resistant, place it in a
dry area
DO NOT install the charger in the engine bay
Ensure charger is wired closer to the main battery than the auxiliary battery
Secure the charger with brackets and screws
MA20DC and MA20DCS Chargers
Output cables:
1. Connect the Red (positive) ring to the Red (positive) terminal on the auxiliary battery
2. Connect the Black (negative) ring to the Black (negative) terminal on the auxiliary battery
Input cables:
1. Connect the Blue (Positive) ring to the Red (positive) terminal on the main cranking battery
2. Connect the Black (negative) ring to the Black (negative) terminal on the main cranking battery
SOLAR INPUT - MA20DCS ONLY
1. Connect the Solar cable (yellow) to the solar panel positive cable. When voltage reaches 12.8v, the charger
will start operating.
NOTE: When installed - check all connections for fit and tightness.
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Rev: 1.3
MA20DCS
Type
3 Stage Pulse Charge
Input
12.8V to 25V DC
Low Voltage Cutout
12.2V
Output Current
20 Amp
Output Voltage
GEL
CALCIUM
AGM / Deep Cycle / VRLA
Absorption
14.3V
15.6V
14.7V
Fully Charged (Float Charge)
13.3V
13.8V
13.8V
Solar Panel Reverse Polarity
Protection
20A (Fuse Supplied) – MA20DCS only
Recommended Solar Panel
120 – 500 Watts regulated
Soft Start
Yes – Gradual ramp up of charger output
Equalization
Automatic - Charger commences this process at start up
Max. Output Power
250W
Minimum Start Voltage (Auxilliary
Battery)
1.5V
Float Mode Current Draw
<10mA
Ambient Temperature
-15°C - +50°C
Dimensions
150 x 160 x 53mm - LxWxH
Battery Range
Deep Cycle
18~200AH
Automotive
150~1000CCA
OPERATING INSTRUCTIONS
Charger Display
Red LED - POWER SOURCE
Green LED - CHARGING
Yellow LED – FULLY CHARGED (FLOAT)
Green LED - Battery chemistry selection
1. Turn the vehicle on and allow it to idle - charger automatically recognises there is a charge applied to the
main battery
2. Once the main battery has reached 12.8v the charger turns ON and begins to operate
3. The default setting for the battery chemistry is Lead Acid - change the setting pushing the battery type
selector switch until the correct type is set
4. The charger memorises the chemistry settings and sets it as the default setting when turned back on.
Repeat the selection process to change the chemistry. Remember the charger always defaults to its last
setting
5. Use a Matson Cable Extension kit to alter cable lengths.
*NOTE- Once the main cranking battery falls below 12.3v, the charger stops operating and switches off.
Alternatively, if the auxiliary battery reaches its desired charge level - the charger turns off and lights the FULLY
CHARGED (Float Charging) yellow LED.
Maintenance
The charger is maintenance free
Disassembly of the charger negates warranty
Regularly confirm main battery voltage is above 12volt. If lower, disconnect the charger and investigate the
cause
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Rev: 1.3
SCHEMATIC DIAGRAMS
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Rev: 1.3
Matson Group - Warranty Against Defects Procedure
Matson Group Pty Ltd
100 Links Rd, St Marys, N SW 2760
Phone: 02 98333444
Email: sales@matson.com.au
www.matson.com.au
Warranty
Matson warrants its produ ct s t o be free of defects for reasonable consumer use for a period of 12 months.
Matson will repair or repla ce t he warranted product and it wi ll retur n t he r epaired products under w ar ranty to the
consumer at Matson’s cost.
To make a claim under this warranty, the consumer m ust:
• advise Matson of the defect as soon as it becomes apparent within 12 months of the purchase date and
obtain a return authority by phoning Matson on the above numb er .
• provide satisfactory proof of purchase; and
• send the faulty item to the address supp lied above. All expenses related to sending the products back to
Matson are at the consumer ’s cost.
Exclusions from Warranty
This warranty does not apply to products where:
• there is evidence of Improper maintena nce or abuse to the products;
• the products have been exposed to harsh environmental conditions or t hose outside the specified
operating conditions;
• Unauthorised modification is evident t o t he pr oducts or misuse of products;
• Operation outside the products specific ation.
Warranty Disclaimers
Matson’s liability in respe ct of a breach of a consumer guarantee or any warranty made under these warranty
terms and conditions for a ny products not of a kind ordinarily acquired for personal, domestic or household use
is limited, in relation to the products to the extent permissible by law and at it’s option t o:
• replacing the products or the supply of equiv alent goods;
• the repair of the products;
• the payment of the cost of replacing the products or of acquiring equivale nt goods; or
• the payment of the cost of having the products r epaired.
To the extent permitted by law, all other warranties whether imp li ed or ot her wise, not set out in these warranty
terms and conditions are excl uded and we are not liable in contract, tort (including, wit hout lim it at i on, negligence
or breach of statutory duty) or ot her w ise t o compensate the customer for:
• any increased costs or expenses;
• any loss of profit, revenue, business, cont r act s or anticipated savings;
• any loss or expense resulting from a claim by a third party; or
• any special, indirect or consequential loss or damage of any nature whatsoever caused by Matson’s
failure in complying with it s obligations.
MATSON IS NOT RESPONSI BLE FOR DAMAGE THAT OCCURS AS A RESULT OF YOUR FAIL URE TO
FOLLOW THE INSTRUCTIONS INTENDED FOR THE MATSON PRODUCT
In the following paragraph, “Our” means Matson and “ You” means the customer:
Our goods come with guar ant ees t hat cannot be excluded under the Australian Consumer Law. You are
entitled to a replacement or ref und f or a major failure and for compensation for any other reasonably
foreseeable loss or damage. You are also entitled to have the goods repaired or replaced if the goods
fail to be of acceptable quality and the failure does not am ount to a major failure.
The benefits given to the customer in this warranty are in addit ion t o ot her r i ghts and remedies under a law in
relation to the products to w hich this warranty applies.
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